diff --git a/content/casts/versioned/archive/v0.2.0/metadata.json b/content/casts/versioned/archive/v0.2.0/metadata.json
index 92284ebc..271e5176 100644
--- a/content/casts/versioned/archive/v0.2.0/metadata.json
+++ b/content/casts/versioned/archive/v0.2.0/metadata.json
@@ -1,11 +1,11 @@
 {
   "title": "v0.2.0",
-  "updated_at": "2020-08-19T12:21:47.707Z",
+  "updated_at": "2021-01-26T14:48:01.332Z",
   "release": {
     "id": 29809771,
     "tag_name": "v0.2.0",
     "target_commitish": "fc2111a585b03d322ce4207e385470d6746e4292",
-    "created_at": "2020-08-18T10:20:14Z",
+    "created_at": "2020-08-25T12:21:08Z",
     "published_at": "2020-08-18T11:16:01Z",
     "assets": [
       {
diff --git a/content/casts/versioned/archive/v0.2.1/bloom-filter.cast b/content/casts/versioned/archive/v0.2.1/bloom-filter.cast
new file mode 100644
index 00000000..7126bcc8
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/bloom-filter.cast
@@ -0,0 +1,959 @@
+{"version": 2, "width": 100, "height": 56, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1599035914, "metadata": {"tss": [{"h": "This example will use the 2016 US presidential election dataset", "ts": 0.06}, {"h": "The table is sorted by voting precinct and so queries that filter by that", "ts": 8.619999999999997}, {"h": "Currently we have no fragments in cache. Let's run this query and check the cache again", "ts": 18.821174478530793}, {"h": "Since default indexing in Splitgraph is done by min-max values for every column", "ts": 30.95498809814464}, {"h": "Let's download the whole dataset and add a bloom filter index on county_name", "ts": 41.48344487190275}, {"h": "Check the metadata of a new object to see details about the bloom filter structure", "ts": 72.52905097007795}, {"h": "Plan the query again: because the bloom filter can drop most fragments -", "ts": 100.02905097007795}]}}
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+[0.09, "o", "\u001b[1m\u001b[36m\u001b[91m$ # This example will use the 2016 US presidential election dataset"]
+[0.12, "o", "\r\n"]
+[0.15, "o", "$ # to show off how indexing with a bloom filter can improve query performance.\r\n"]
+[0.18, "o", "$ #\r\n"]
+[0.21, "o", "$ # First, clone the whole dataset without downloading it.\r\n"]
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+[3.380000000000001, "o", "Fetched metadata for 1 image, 1 table, 20 objects and 1 tag.\r\n"]
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+[8.619999999999997, "o", "\u001b[J"]
+[8.649999999999997, "o", "\u001b[1m\u001b[36m\u001b[91m$ # The table is sorted by voting precinct and so queries that filter by that"]
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+[8.709999999999996, "o", "$ # (or by state, since precinct FIPS codes have the state as the prefix)\r\n"]
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+[13.581174478530796, "o", "Aggregate  (cost=9785903.09..9785903.10 rows=1 width=32)\r\n->  Foreign Scan on precinct_results  (cost=20.00..9784680.00 rows=489234 width=20)\r\nFilter: ((state)::text = 'New York'::text)\r\nMulticorn: Objects removed by filter: 15\r\nMulticorn: Scan through 5 object(s) (6.63 MiB)\r\nJIT:\r\nFunctions: 3\r\nOptions: Inlining true, Optimization true, Expressions true, Deforming true\r\n"]
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+[18.821174478530793, "o", "\u001b[J"]
+[18.851174478530794, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Currently we have no fragments in cache. Let's run this query and check the cache again"]
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+[45.65401402473492, "o", "Need to download 20 objects (20.19 MiB), cache occupancy: 6.63 MiB/10.00 GiB\r\n"]
+[45.70627156257672, "o", "Fetching 15 objects, total size 20.19 MiB\r\n"]
+[45.70887890815777, "o", "Getting download URLs from registry PostgresEngine data.splitgraph.com (ca446922b2844ed19f8e6c8b35edbe31@data.splitgraph.com:5432/sgregistry)...\r\n"]
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+[47.70899334907574, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:36,  2.58s/obj, object=o07f95f994...]"]
+[47.91172352790875, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:36,  2.58s/obj, object=o2551aa953...]"]
+[47.91219511985821, "o", "\r 13%|\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u258f                                                    | 2/15 [00:02<00:24,  1.87s/obj, object=o2551aa953...]"]
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+[48.96156517028851, "o", "\r  5%|\u2588\u2588\u2588\u2588                                                                              | 1/20 [00:01<00:21,  1.12s/objs]"]
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+[72.55905097007795, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Check the metadata of a new object to see details about the bloom filter structure"]
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+[75.38159521102958, "o", "Object ID: o0671aabeb9d4ce362515624616a5a202503db99d7a83007bfdf63fd71b91af\r\n\r\n"]
+[75.38161166191153, "o", "Namespace: splitgraph\r\nFormat: FRAG\r\nSize: 1.38 MiB\r\nCreated: 2019-10-10 15:53:46.833226\r\nRows inserted: 100000\r\nInsertion hash: 2d8728d89cdec8d2d5dcff5ddce5e984911264f44fada0e4c62affda483ecd07\r\nRows deleted: 0\r\nDeletion hash: 0000000000000000000000000000000000000000000000000000000000000000\r\nColumn index:\r\n  id: [900001, 1000000]\r\n  mode: ['absentee', 'total']\r\n  year: [2016, 2016]\r\n  party: ['', 'unaffiliated']\r\n  stage: ['gen', 'gen']\r\n  state: ['Maryland', 'Michigan']\r\n  votes: [0, 146278]\r\n  office: ['U"]
+[75.38161881446891, "o", "S President', 'US President']\r\n  district: ['', 'statewide']\r\n  precinct: ['1', 'Yellow Springs Elementary School|pplaceid: 14119|pollid: 4860|electdist: 21|prec: 4']\r\n  candidate: ['', 'William Feegbeh']\r\n  county_lat: ['38.07445', '44.682535']\r\n  state_fips: [24, 26]\r\n  county_ansi: [592947, 1714670]\r\n  county_fips: [24009, 26001]\r\n  county_long: ['-82.834078', '-70.14191']\r\n  county_name: ['Alcona County', 'Worcester County']\r\n  state_icpsr: [3, 52]\r\n  jurisdiction: ['ALCONA', 'Yarmouth']\r\n  state_postal"]
+[75.38162930488639, "o", ": ['MA', 'MI']\r\n  candidate_fec: ['', 'P80005572']\r\n  candidate_full: [None, None]\r\n  candidate_last: [None, None]\r\n  candidate_first: [None, None]\r\n  candidate_icpsr: [None, None]\r\n  candidate_party: [None, None]\r\n  candidate_google: [None, None]\r\n  candidate_middle: [None, None]\r\n  candidate_suffix: [None, None]\r\n  candidate_fec_name: ['', 'WILLIAMS, ELAINE WHIGHAM']\r\n  candidate_govtrack: [None, None]\r\n  candidate_maplight: [None, None]\r\n  candidate_nickname: [None, None]\r\n  candidate_wikidata: [None, No"]
+[75.3816428947454, "o", "ne]\r\n  candidate_normalized: ['', 'wysinger']\r\n  candidate_opensecrets: [None, None]\r\nBloom index: \r\n"]
+[75.38165338516288, "o", "  county_name: k=7, size 56.00 B, approx. 34 item(s), false positive probability 1.0%\r\n\r\n"]
+[75.40630395889335, "o", "Location: cached locally\r\n"]
+[75.40643890380912, "o", "Original location: o0671aabeb9d4ce362515624616a5a202503db99d7a83007bfdf63fd71b91af (S3)\r\n"]
+[75.43643890380912, "o", "\u001b[1m"]
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+[99.99905097007795, "o", "\u001b[H"]
+[100.02905097007795, "o", "\u001b[J"]
+[100.05905097007795, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Plan the query again: because the bloom filter can drop most fragments - "]
+[100.08905097007795, "o", "\r\n"]
+[100.11905097007795, "o", "$ # This is an improvement of about 25MiB at the cost of a few KB of index data.\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.1/dbt.cast b/content/casts/versioned/archive/v0.2.1/dbt.cast
new file mode 100644
index 00000000..ce7766f0
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/dbt.cast
@@ -0,0 +1,2107 @@
+{"version": 2, "width": 100, "height": 48, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1599036018, "metadata": {"tss": [{"h": "dbt must be installed for this to work (pip install dbt)", "ts": 0.06}, {"h": "Ingest the initial data (in CSV) from this branch of the project.", "ts": 10.109885129928585}, {"h": "Snapshot the initial data with Splitgraph.", "ts": 25.03314270019532}, {"h": "Inspect the original data", "ts": 34.72484529495252}, {"h": "The status column in the raw_orders table in the initial dataset can", "ts": 47.72484529495252}, {"h": "Commit this dataset and check out the original data", "ts": 58.64761960983309}, {"h": "Check out the 'serious' version of the dbt project that uses data from", "ts": 69.10254422187852}, {"h": "Check that dbt is set up to connect to the Splitgraph engine.", "ts": 76.08996023178155}, {"h": "Now run the dbt models.", "ts": 99.58996023178155}, {"h": "Take a look at the built dataset and commit it.", "ts": 119.58996023178155}, {"h": "Check out the new version of the raw dataset and run dbt against it as well.", "ts": 134.08996023178156}, {"h": "Create an image from the new data.", "ts": 155.08996023178156}, {"h": "We now have two versions of the source and the target dataset.", "ts": 165.08996023178156}, {"h": "Inspect the difference between the two datasets that dbt built.", "ts": 172.9198013210303}, {"h": "Run a sample query: how much in bank transfer refunds did we process?", "ts": 182.4198013210303}]}}
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+[3.672325296401975, "o", "Cloning into 'jaffle_shop'...\r\n"]
+[4.672325296401975, "o", "remote: Enumerating objects: 277, done.        \r\n"]
+[4.701018733978269, "o", "Receiving objects:   0% (1/277)\r"]
+[4.701053543090818, "o", "Receiving objects:   1% (3/277)\rReceiving objects:   2% (6/277)\rReceiving objects:   3% (9/277)\rReceiving objects:   4% (12/277)\r"]
+[4.701065702438352, "o", "Receiving objects:   5% (14/277)\r"]
+[4.70153848648071, "o", "Receiving objects:   6% (17/277)\rReceiving objects:   7% (20/277)\rReceiving objects:   8% (23/277)\rReceiving objects:   9% (25/277)\r"]
+[4.743811054229734, "o", "Receiving objects:  10% (28/277)\r"]
+[4.743834657669065, "o", "Receiving objects:  11% (31/277)\rReceiving objects:  12% (34/277)\r"]
+[4.743890209197995, "o", "Receiving objects:  13% (37/277)\r"]
+[4.7439049911499, "o", "Receiving objects:  14% (39/277)\rReceiving objects:  15% (42/277)\r"]
+[4.744036598205564, "o", "Receiving objects:  16% (45/277)\r"]
+[4.744132919311521, "o", "Receiving objects:  17% (48/277)\r"]
+[4.744200153350827, "o", "Receiving objects:  18% (50/277)\r"]
+[4.744251413345334, "o", "Receiving objects:  19% (53/277)\r"]
+[4.760904951095578, "o", "Receiving objects:  20% (56/277)\r"]
+[4.760962648391721, "o", "Receiving objects:  21% (59/277)\r"]
+[4.761003656387326, "o", "Receiving objects:  22% (61/277)\r"]
+[4.761234922409055, "o", "Receiving objects:  23% (64/277)\r"]
+[4.761242074966428, "o", "Receiving objects:  24% (67/277)\r"]
+[4.849606914520261, "o", "Receiving objects:  25% (70/277)\r"]
+[4.849629564285276, "o", "Receiving objects:  26% (73/277)\rReceiving objects:  27% (75/277)\rReceiving objects:  28% (78/277)\rReceiving objects:  29% (81/277)\rReceiving objects:  30% (84/277)\r"]
+[4.849683923721311, "o", "Receiving objects:  31% (86/277)\r"]
+[4.8497232627868625, "o", "Receiving objects:  32% (89/277)\r"]
+[4.849745435714719, "o", "Receiving objects:  33% (92/277)\r"]
+[4.849815292358396, "o", "Receiving objects:  34% (95/277)\r"]
+[4.849820060729978, "o", "Receiving objects:  35% (97/277)\rReceiving objects:  36% (100/277)\r"]
+[4.849829597473142, "o", "Receiving objects:  37% (103/277)\r"]
+[4.849847240447995, "o", "Receiving objects:  38% (106/277)\r"]
+[4.849904937744138, "o", "Receiving objects:  39% (109/277)\rReceiving objects:  40% (111/277)\r"]
+[4.8500754070281955, "o", "Receiving objects:  41% (114/277)\r"]
+[4.850079936981198, "o", "Receiving objects:  42% (117/277)\r"]
+[4.8501130771636936, "o", "Receiving objects:  43% (120/277)\r"]
+[4.850123090744016, "o", "Receiving objects:  44% (122/277)\r"]
+[4.8501271438598605, "o", "Receiving objects:  45% (125/277)\r"]
+[4.850139541625974, "o", "Receiving objects:  46% (128/277)\r"]
+[4.850165290832517, "o", "Receiving objects:  47% (131/277)\r"]
+[4.850169582366941, "o", "Receiving objects:  48% (133/277)\rReceiving objects:  49% (136/277)\r"]
+[4.8501881790161105, "o", "Receiving objects:  50% (139/277)\r"]
+[4.850205583572385, "o", "Receiving objects:  51% (142/277)\r"]
+[4.850213451385495, "o", "Receiving objects:  52% (145/277)\rReceiving objects:  53% (147/277)\rReceiving objects:  54% (150/277)\r"]
+[4.850217742919919, "o", "Receiving objects:  55% (153/277)\r"]
+[4.8502351474761936, "o", "Receiving objects:  56% (156/277)\r"]
+[4.8502396774291965, "o", "Receiving objects:  57% (158/277)\r"]
+[4.850283308029172, "o", "Receiving objects:  58% (161/277)\r"]
+[4.850304527282712, "o", "Receiving objects:  59% (164/277)\r"]
+[4.850482625961301, "o", "Receiving objects:  60% (167/277)\rReceiving objects:  61% (169/277)\r"]
+[4.850487394332883, "o", "Receiving objects:  62% (172/277)\rReceiving objects:  63% (175/277)\r"]
+[4.850491924285886, "o", "Receiving objects:  64% (178/277)\r"]
+[4.850508852005002, "o", "Receiving objects:  65% (181/277)\r"]
+[4.8505191040039035, "o", "Receiving objects:  66% (183/277)\r"]
+[4.850522918701169, "o", "Receiving objects:  67% (186/277)\r"]
+[4.850526971817014, "o", "Receiving objects:  68% (189/277)\r"]
+[4.850545568466184, "o", "Receiving objects:  69% (192/277)\r"]
+[4.850549860000608, "o", "Receiving objects:  70% (194/277)\rReceiving objects:  71% (197/277)\r"]
+[4.850560827255246, "o", "Receiving objects:  72% (200/277)\r"]
+[4.850616617202756, "o", "Receiving objects:  73% (203/277)\r"]
+[4.850621385574338, "o", "Receiving objects:  74% (205/277)\rReceiving objects:  75% (208/277)\r"]
+[4.865693492889402, "o", "remote: Total 277 (delta 0), reused 0 (delta 0), pack-reused 277        \r\nReceiving objects:  76% (211/277)\rReceiving objects:  77% (214/277)\rReceiving objects:  78% (217/277)\rReceiving objects:  79% (219/277)\rReceiving objects:  80% (222/277)\rReceiving objects:  81% (225/277)\rReceiving objects:  82% (228/277)\r"]
+[4.865716142654416, "o", "Receiving objects:  83% (230/277)\rReceiving objects:  84% (233/277)\r"]
+[4.865751428604123, "o", "Receiving objects:  85% (236/277)\r"]
+[4.8660384845733615, "o", "Receiving objects:  86% (239/277)\r"]
+[4.866048736572263, "o", "Receiving objects:  87% (241/277)\rReceiving objects:  88% (244/277)\r"]
+[4.866069955825803, "o", "Receiving objects:  89% (247/277)\r"]
+[4.8660813999176, "o", "Receiving objects:  90% (250/277)\rReceiving objects:  91% (253/277)\rReceiving objects:  92% (255/277)\r"]
+[4.866140289306638, "o", "Receiving objects:  93% (258/277)\r"]
+[4.866157455444333, "o", "Receiving objects:  94% (261/277)\rReceiving objects:  95% (264/277)\rReceiving objects:  96% (266/277)\rReceiving objects:  97% (269/277)\rReceiving objects:  98% (272/277)\r"]
+[4.866164608001706, "o", "Receiving objects:  99% (275/277)\r"]
+[4.8662754726409885, "o", "Receiving objects: 100% (277/277)\r"]
+[4.866289062499997, "o", "Receiving objects: 100% (277/277), 96.61 KiB | 581.00 KiB/s, done.\r\n"]
+[4.866657657623288, "o", "Resolving deltas:   0% (0/120)\r"]
+[4.86675540924072, "o", "Resolving deltas:   1% (2/120)\r"]
+[4.866772575378415, "o", "Resolving deltas:   2% (3/120)\r"]
+[4.866906089782712, "o", "Resolving deltas:   3% (4/120)\r"]
+[4.867051763534543, "o", "Resolving deltas:  15% (18/120)\r"]
+[4.867147607803342, "o", "Resolving deltas:  16% (20/120)\r"]
+[4.8671557140350314, "o", "Resolving deltas:  17% (21/120)\r"]
+[4.867224378585813, "o", "Resolving deltas:  18% (22/120)\r"]
+[4.867280406951902, "o", "Resolving deltas:  22% (27/120)\r"]
+[4.867288036346433, "o", "Resolving deltas:  24% (29/120)\r"]
+[4.867338581085202, "o", "Resolving deltas:  29% (35/120)\r"]
+[4.8673693370819064, "o", "Resolving deltas:  33% (40/120)\r"]
+[4.867399616241452, "o", "Resolving deltas:  35% (42/120)\r"]
+[4.867443008422849, "o", "Resolving deltas:  38% (46/120)\r"]
+[4.8674515914916965, "o", "Resolving deltas:  40% (48/120)\r"]
+[4.867539806365964, "o", "Resolving deltas:  43% (52/120)\rResolving deltas:  44% (53/120)\r"]
+[4.8676158618926975, "o", "Resolving deltas:  45% (54/120)\r"]
+[4.867736501693723, "o", "Resolving deltas:  55% (67/120)\r"]
+[4.867802782058713, "o", "Resolving deltas:  60% (73/120)\r"]
+[4.867835683822629, "o", "Resolving deltas:  61% (74/120)\r"]
+[4.8678578567504855, "o", "Resolving deltas:  62% (75/120)\r"]
+[4.867912216186521, "o", "Resolving deltas:  64% (77/120)\r"]
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+[4.867984695434568, "o", "Resolving deltas:  70% (84/120)\r"]
+[4.868197841644284, "o", "Resolving deltas:  74% (89/120)\r"]
+[4.86823622703552, "o", "Resolving deltas:  75% (91/120)\r"]
+[4.868404550552365, "o", "Resolving deltas:  77% (93/120)\r"]
+[4.868443889617917, "o", "Resolving deltas:  78% (94/120)\r"]
+[4.868617696762082, "o", "Resolving deltas:  80% (96/120)\r"]
+[4.868656082153318, "o", "Resolving deltas:  81% (98/120)\r"]
+[4.868791742324826, "o", "Resolving deltas:  82% (99/120)\r"]
+[4.868868751525876, "o", "Resolving deltas:  86% (104/120)\r"]
+[4.868931217193601, "o", "Resolving deltas:  89% (107/120)\r"]
+[4.869009656906125, "o", "Resolving deltas:  90% (108/120)\r"]
+[4.869137926101682, "o", "Resolving deltas:  91% (110/120)\r"]
+[4.869204206466672, "o", "Resolving deltas:  93% (112/120)\r"]
+[4.869280977249143, "o", "Resolving deltas:  95% (115/120)\r"]
+[4.869336528778073, "o", "Resolving deltas:  98% (118/120)\r"]
+[4.869389219284055, "o", "Resolving deltas:  99% (119/120)\r"]
+[4.869425458908078, "o", "Resolving deltas: 100% (120/120)\r"]
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+[102.704758443833, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n"]
+[103.704758443833, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 134 macros, 0 operations, 0 seed files, 3 sources\r\n"]
+[103.70787052154601, "o", "\r\n"]
+[104.03750089645446, "o", "08:40:45 | Concurrency: 4 threads (target='splitgraph')\r\n"]
+[104.03758553505004, "o", "08:40:45 | \r\n"]
+[104.04278091430724, "o", "08:40:45 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]"]
+[104.04282406807006, "o", "\r\n"]
+[104.04466918945373, "o", "08:40:45 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]\r\n"]
+[104.04790047645629, "o", "08:40:45 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]"]
+[104.04797653198302, "o", "\r\n"]
+[104.04841856002868, "o", "08:40:45 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]"]
+[104.04844955444396, "o", "\r\n"]
+[104.31434515953124, "o", "08:40:45 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.26s]\r\n"]
+[104.31655053138793, "o", "08:40:45 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.26s]\r\n"]
+[104.31848768234313, "o", "08:40:45 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.26s]"]
+[104.31852392196716, "o", "\r\n"]
+[104.32027319908202, "o", "08:40:45 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.27s]"]
+[104.32029203414977, "o", "\r\n"]
+[104.32113770484985, "o", "08:40:45 | 5 of 9 START table model dbt_jaffle.order_payments................... [RUN]"]
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+[104.32311157226623, "o", "08:40:45 | 6 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]"]
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+[104.32500413894714, "o", "08:40:45 | 7 of 9 START table model dbt_jaffle.customer_payments................ [RUN]"]
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+[104.48038653373779, "o", "08:40:45 | 5 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.15s]"]
+[104.48047379493774, "o", "\r\n"]
+[104.48094967842162, "o", "08:40:45 | 6 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.15s]"]
+[104.48096779823364, "o", "\r\n"]
+[104.48166731834472, "o", "08:40:45 | 7 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.13s]\r\n"]
+[104.48373750686706, "o", "08:40:45 | 8 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]\r\n"]
+[104.50080040931762, "o", "08:40:45 | 9 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]"]
+[104.50084594726623, "o", "\r\n"]
+[104.57607082367004, "o", "08:40:46 | 8 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.09s]"]
+[104.57611826896728, "o", "\r\n"]
+[104.58843783378661, "o", "08:40:46 | 9 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.08s]\r\n"]
+[104.6676240348822, "o", "08:40:46 | \r\n"]
+[104.66781763076843, "o", "08:40:46 | Finished running 4 view models, 5 table models in 0.96s.\r\n"]
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+[104.69884160995544, "o", "\u001b[32mCompleted successfully\u001b[0m\r\n"]
+[104.69888142585815, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
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+[119.61996023178155, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Take a look at the built dataset and commit it."]
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+[122.64760494232242, "o", "Between 000000000000 and the current working copy: \r\n"]
+[122.64762043953006, "o", "customer_orders: table added\r\ncustomer_payments: table added\r\ndim_customers: table added\r\nfct_orders: table added\r\norder_payments: table added\r\nstg_jaffle_shop__customers: untracked\r\nstg_jaffle_shop__orders: untracked\r\nstg_jaffle_shop__payments: untracked\r\nstg_stripe__payments: untracked\r\n"]
+[123.07399535179202, "o", "Committing dbt_jaffle...\r\n"]
+[123.08940076828067, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__customers is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[123.09028100967471, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__orders is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[123.09115195274417, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[123.09203314781253, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_stripe__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[123.10034608841006, "o", "Processing table order_payments\r\n"]
+[123.1807055473334, "o", "Processing table customer_orders\r\n"]
+[123.20445871353213, "o", "Processing table customer_payments\r\n"]
+[123.23715877533023, "o", "Processing table fct_orders\r\n"]
+[123.26736927032535, "o", "Processing table dim_customers\r\n"]
+[123.30234861373965, "o", "Committed dbt_jaffle as c784dc081a95.\r\n"]
+[123.74535250663821, "o", "Tagged dbt_jaffle:c784dc081a950d1387e35eddca2c4caa0665d1ba5057d9b27d058fe545f5bbe9 with asof_20180409.\r\n"]
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+[134.08996023178156, "o", "\u001b[J"]
+[134.11996023178156, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Check out the new version of the raw dataset and run dbt against it as well."]
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+[136.93996023178167, "o", "d"]
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+[137.02996023178167, "o", "\r\n"]
+[137.05996023178167, "o", "\u001b[0m"]
+[137.08996023178167, "o", "\r\n"]
+[137.80453266143866, "o", "Checked out raw_jaffle_shop:9553c4ed9d9e.\r\n"]
+[138.7595807456977, "o", "Running with dbt=0.17.2\r\n"]
+[139.19816626548834, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n"]
+[140.19816626548834, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 134 macros, 0 operations, 0 seed files, 3 sources\r\n"]
+[140.20123828888006, "o", "\r\n"]
+[140.6585167789466, "o", "08:40:52 | Concurrency: 4 threads (target='splitgraph')\r\n"]
+[140.65860737800665, "o", "08:40:52 | \r\n"]
+[140.6661900424964, "o", "08:40:52 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]"]
+[140.66624273300238, "o", "\r\n"]
+[140.6678317928321, "o", "08:40:52 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]\r\n"]
+[140.66819633483954, "o", "08:40:52 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]"]
+[140.66821636200018, "o", "\r\n"]
+[140.6688240909583, "o", "08:40:52 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]"]
+[140.66886223793097, "o", "\r\n"]
+[140.9141878032691, "o", "08:40:52 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.24s]\r\n"]
+[140.91540779113836, "o", "08:40:52 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.24s]\r\n"]
+[140.9160791778571, "o", "08:40:52 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.24s]"]
+[140.91610921859808, "o", "\r\n"]
+[140.92333926200934, "o", "08:40:52 | 5 of 9 START table model dbt_jaffle.order_payments................... [RUN]"]
+[140.9233771705634, "o", "\r\n"]
+[140.9249607467658, "o", "08:40:52 | 6 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]\r\n"]
+[140.92791713714666, "o", "08:40:52 | 7 of 9 START table model dbt_jaffle.customer_payments................ [RUN]"]
+[140.92809642791815, "o", "\r\n"]
+[140.9340099239356, "o", "08:40:52 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.25s]"]
+[140.93402685165472, "o", "\r\n"]
+[141.1082657718665, "o", "08:40:52 | 6 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.18s]"]
+[141.10865200996466, "o", "\r\n"]
+[141.12207449913092, "o", "08:40:52 | 5 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.19s]"]
+[141.12212528228827, "o", "\r\n"]
+[141.1268297576911, "o", "08:40:52 | 7 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.20s]\r\n"]
+[141.1281384372718, "o", "08:40:52 | 8 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]"]
+[141.12826813697882, "o", "\r\n"]
+[141.14413012504644, "o", "08:40:52 | 9 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]"]
+[141.1441511058814, "o", "\r\n"]
+[141.2527424240119, "o", "08:40:52 | 8 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.12s]"]
+[141.2527903461463, "o", "\r\n"]
+[141.25842584610052, "o", "08:40:52 | 9 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.10s]\r\n"]
+[141.3106495285041, "o", "08:40:52 | \r\n"]
+[141.31072176933355, "o", "08:40:52 | Finished running 4 view models, 5 table models in 1.11s."]
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+[141.34136046409674, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
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diff --git a/content/casts/versioned/archive/v0.2.1/import-from-csv.cast b/content/casts/versioned/archive/v0.2.1/import-from-csv.cast
new file mode 100644
index 00000000..d50d62bb
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/import-from-csv.cast
@@ -0,0 +1,602 @@
+{"version": 2, "width": 100, "height": 45, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1599035964, "metadata": {"tss": [{"h": "Inspect the data file", "ts": 0.06}, {"h": "Initialize the repository", "ts": 6.502599716186525}, {"h": "Ingest the data into a new table (wrapper around COPY FROM STDIN)", "ts": 27.502599716186527}, {"h": "The data is now in a table but not committed as a Splitgraph image", "ts": 36.19259971618666}, {"h": "Create a new image and tag it", "ts": 43.8915985107424}, {"h": "Inspect the image", "ts": 52.182767171860036}, {"h": "Inspect the table", "ts": 59.09486340522801}, {"h": "Inspect object metadata", "ts": 78.59486340522801}]}}
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+[0.15, "o", "$ # (originally from https://data.townofcary.org/api/v2/catalog/datasets/rdu-weather-history/exports/csv)\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.1/import-from-mongo.cast b/content/casts/versioned/archive/v0.2.1/import-from-mongo.cast
new file mode 100644
index 00000000..ac37c95e
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/import-from-mongo.cast
@@ -0,0 +1,630 @@
+{"version": 2, "width": 100, "height": 31, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1599035981, "metadata": {"tss": [{"h": "Inspect the config file", "ts": 0.06}, {"h": "Do some preliminary cleanup", "ts": 6.0600000000000005}, {"h": "Mount the Mongo database", "ts": 12.456034917831428}, {"h": "Check the contents of the new table", "ts": 27.45603491783143}, {"h": "Import the data into a new Splitgraph repository", "ts": 34.54769508361824}, {"h": "Alternatively, data can be imported from other databases with Splitfiles", "ts": 43.664882917404356}]}}
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.1/metadata.json b/content/casts/versioned/archive/v0.2.1/metadata.json
new file mode 100644
index 00000000..e52ed900
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.1",
+  "updated_at": "2021-01-26T14:47:58.836Z",
+  "release": {
+    "id": 30568807,
+    "tag_name": "v0.2.1",
+    "target_commitish": "492b8412619eb54ab198ac597beef528a4c54f96",
+    "created_at": "2020-09-02T08:23:13Z",
+    "published_at": "2020-09-02T09:00:42Z",
+    "assets": [
+      {
+        "id": 24722695,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/24722695",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-09-02T08:47:33Z",
+        "updated_at": "2020-09-02T08:47:34Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.1/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/casts/versioned/archive/v0.2.1/pg-replication.cast b/content/casts/versioned/archive/v0.2.1/pg-replication.cast
new file mode 100644
index 00000000..d846cce9
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/pg-replication.cast
@@ -0,0 +1,1401 @@
+{"version": 2, "width": 100, "height": 21, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1599036060, "metadata": {"tss": [{"h": "The configuration file for sgr contains credentials for the", "ts": 0.06}, {"h": "The origin database has been set up with a couple of tables.", "ts": 10.059999999999999}, {"h": "Create a publication on the origin database", "ts": 19.845590877532878}, {"h": "Create a schema with the same name and same tables", "ts": 28.62559087753302}, {"h": "Set up replication from the origin database.", "ts": 38.62559087753302}, {"h": "Check the data on the engine", "ts": 49.565590877533246}, {"h": "Commit the data as an initial image", "ts": 58.21843179702798}, {"h": "Make a change on the origin database", "ts": 68.47000830650384}, {"h": "The change propagates to the subscriber and gets", "ts": 84.54000830650426}, {"h": "Committing creates a new image, snapshotting the state.", "ts": 91.43031434059245}]}}
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+[0.18, "o", "$ # (replication can be set up through any PostgreSQL client)\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.1/postgrest.cast b/content/casts/versioned/archive/v0.2.1/postgrest.cast
new file mode 100644
index 00000000..dcbf0c67
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/postgrest.cast
@@ -0,0 +1,1179 @@
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diff --git a/content/casts/versioned/archive/v0.2.1/push-to-other-engine.cast b/content/casts/versioned/archive/v0.2.1/push-to-other-engine.cast
new file mode 100644
index 00000000..2803cca8
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/push-to-other-engine.cast
@@ -0,0 +1,919 @@
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.1/splitfiles.cast b/content/casts/versioned/archive/v0.2.1/splitfiles.cast
new file mode 100644
index 00000000..9ab8900e
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/splitfiles.cast
@@ -0,0 +1,1298 @@
+{"version": 2, "width": 100, "height": 31, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1599036185, "metadata": {"tss": [{"h": "Ingest the weather dataset at Raleigh-Durham Airport from the CSV example", "ts": 0.06}, {"h": "Inspect the Splitfile used to create a derivative image", "ts": 13.439803981781012}, {"h": "Run the Splitfile to build a new image", "ts": 21.439803981781015}, {"h": "Much like with Docker, the build result is cached, so running build again checks out the existing image.", "ts": 31.137041282653943}, {"h": "Inspect the new dataset", "ts": 39.11687545776388}, {"h": "Inspect the image's provenance (generated from its metadata)", "ts": 54.11687545776388}, {"h": "We can also see that a new image has been derived from demo/weather", "ts": 62.36537615776092}, {"h": "Now pretend there's been a revision to the source historical weather data", "ts": 69.07006686210667}, {"h": "Use the derivative image's provenance to rebuild it against the revised version", "ts": 82.11013089180054}, {"h": "Compare the two resultant datasets", "ts": 92.01879650116041}]}}
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+[45.672010869980284, "o", "Table demo/summary:d26cc23ce22ce50bad21fadc0dc5ad01501a280fd23ea2288601b6aad8c0c801/monthly_summary\r\n\r\n"]
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+[62.39537615776092, "o", "\u001b[1m\u001b[36m\u001b[91m$ # We can also see that a new image has been derived from demo/weather"]
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+[69.07006686210667, "o", "\u001b[J"]
+[69.10006686210667, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Now pretend there's been a revision to the source historical weather data"]
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diff --git a/content/casts/versioned/archive/v0.2.1/splitgraph-cloud.cast b/content/casts/versioned/archive/v0.2.1/splitgraph-cloud.cast
new file mode 100644
index 00000000..9792b54d
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/splitgraph-cloud.cast
@@ -0,0 +1,1340 @@
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.1/us-election.cast b/content/casts/versioned/archive/v0.2.1/us-election.cast
new file mode 100644
index 00000000..005b8bc0
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.1/us-election.cast
@@ -0,0 +1,448 @@
+{"version": 2, "width": 100, "height": 57, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1599036210, "metadata": {"tss": [{"h": "This example will use Splitgraph to build a dataset that correlates, for every US county,", "ts": 0.06}, {"h": "Now, build the dataset: the Splitgraph engine will automatically download the required data", "ts": 28.060000000000002}, {"h": "Inspect the dataset metadata", "ts": 44.06}, {"h": "Get the data for New York County (FIPS 36061)", "ts": 61.56}, {"h": "Do a quick analysis of the dataset.", "ts": 71.06138576507584}]}}
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+[0.12, "o", "\r\n"]
+[0.15, "o", "$ # its voting pattern in the 2016 US Presidential election with the amount of\r\n"]
+[0.18, "o", "$ # Qualified Opportunity Zone areas in it.\r\n"]
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+[1.3209264945983896, "o", ") AS qoz_tract_count,\r\n                substring(lpad(\"Census Tract Number\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/qoz:latest\".qoz\r\n            GROUP BY county_id\r\n        )\r\n    SELECT\r\n        c.county_id AS county_id,\r\n        COALESCE(q.qoz_tract_count::numeric, 0.0) / total_tract_count AS qoz_tract_fraction\r\n    FROM qoz_tracts q JOIN county_tracts c\r\n        ON q.county_id = c.county_id\r\n}\r\n\r\n# Summarize the Trump/Clinton vote fraction in each county.\r\n\r\nFROM splitgra"]
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+[72.29138576507589, "o", "\r\n"]
+[72.29356324195882, "o", "import scipy.stats as ss\r\n\r\nfrom splitgraph.core.repository import Repository\r\nfrom splitgraph.ingestion.pandas import sql_to_df\r\n\r\n# Load the dataset we created into Pandas\r\nimage = Repository(\"\", \"qoz_vote_fraction\").images[\"latest\"]\r\ndf = sql_to_df(\"SELECT * FROM qoz_vote_fraction\", image=image, use_lq=True)\r\nprint(df)\r\n\r\n# Is there a correlation between the Trump vote fraction and the fraction of\r\n# QOZ-qualified tracts in every county?\r\nprint(ss.linregress(df[\"trump_vote_fraction\"], df[\"qoz_tract_fract"]
+[72.29357444763204, "o", "ion\"]))\r\n"]
+[73.29357444763204, "o", "     county_id  qoz_tract_fraction  trump_vote_fraction  clinton_vote_fraction  total_votes\r\n0        01001            0.083333             0.491135               0.160432      37000.0\r\n1        01003            0.187500             0.496056               0.125629     146925.0\r\n2        01005            0.111111             0.330305               0.294998      16512.0\r\n3        01007            0.250000             0.485132               0.134927      13889.0\r\n4        01009            0.111111             "]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.2/bloom-filter.cast b/content/casts/versioned/archive/v0.2.2/bloom-filter.cast
new file mode 100644
index 00000000..63de10e9
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/bloom-filter.cast
@@ -0,0 +1,956 @@
+{"version": 2, "width": 100, "height": 56, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1600245709, "metadata": {"tss": [{"h": "This example will use the 2016 US presidential election dataset", "ts": 0.06}, {"h": "The table is sorted by voting precinct and so queries that filter by that", "ts": 8.619999999999997}, {"h": "Currently we have no fragments in cache. Let's run this query and check the cache again", "ts": 18.849508142471223}, {"h": "Since default indexing in Splitgraph is done by min-max values for every column", "ts": 31.024709796905626}, {"h": "Let's download the whole dataset and add a bloom filter index on county_name", "ts": 41.574802341461464}, {"h": "Check the metadata of a new object to see details about the bloom filter structure", "ts": 72.29898419380231}, {"h": "Plan the query again: because the bloom filter can drop most fragments -", "ts": 99.79898419380231}]}}
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+[0.15, "o", "$ # to show off how indexing with a bloom filter can improve query performance.\r\n"]
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+[13.609508142471226, "o", "Aggregate  (cost=9785903.09..9785903.10 rows=1 width=32)\r\n->  Foreign Scan on precinct_results  (cost=20.00..9784680.00 rows=489234 width=20)\r\nFilter: ((state)::text = 'New York'::text)\r\nMulticorn: Objects removed by filter: 15\r\nMulticorn: Scan through 5 object(s) (6.63 MiB)\r\nJIT:\r\nFunctions: 3\r\nOptions: Inlining true, Optimization true, Expressions true, Deforming true\r\n"]
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+[18.849508142471223, "o", "\u001b[J"]
+[18.879508142471224, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Currently we have no fragments in cache. Let's run this query and check the cache again"]
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+[45.7905835247044, "o", "Need to download 20 objects (20.19 MiB), cache occupancy: 6.63 MiB/10.00 GiB\r\n"]
+[45.85029593467755, "o", "Fetching 15 objects, total size 20.19 MiB\r\n"]
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+[46.852461490631526, "o", "\r  0%|                                                                                           | 0/15 [00:00<?, ?obj/s]"]
+[47.852461490631526, "o", "\r  0%|                                                                     | 0/15 [00:02<?, ?obj/s, object=o07f95f994...]"]
+[47.852533254623836, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:41,  2.97s/obj, object=o07f95f994...]"]
+[47.85294261932415, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:41,  2.97s/obj, object=o2551aa953...]"]
+[47.853557500839656, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:41,  2.97s/obj, object=o2630ae563...]"]
+[47.85823288917584, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:41,  2.97s/obj, object=o8376c3af2...]\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:41,  2.97s/obj, object=o40e4e4659...]"]
+[48.043438587189144, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:03<00:41,  2.97s/obj, object=oe60d81ef2...]"]
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diff --git a/content/casts/versioned/archive/v0.2.2/dbt.cast b/content/casts/versioned/archive/v0.2.2/dbt.cast
new file mode 100644
index 00000000..29ff262e
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/dbt.cast
@@ -0,0 +1,2134 @@
+{"version": 2, "width": 100, "height": 48, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1600245814, "metadata": {"tss": [{"h": "dbt must be installed for this to work (pip install dbt)", "ts": 0.06}, {"h": "Ingest the initial data (in CSV) from this branch of the project.", "ts": 11.059999999999999}, {"h": "Snapshot the initial data with Splitgraph.", "ts": 25.988566675186224}, {"h": "Inspect the original data", "ts": 35.67186072349567}, {"h": "The status column in the raw_orders table in the initial dataset can", "ts": 48.67186072349567}, {"h": "Commit this dataset and check out the original data", "ts": 59.66606643676796}, {"h": "Check out the 'serious' version of the dbt project that uses data from", "ts": 70.10647994041496}, {"h": "Check that dbt is set up to connect to the Splitgraph engine.", "ts": 77.0935798072821}, {"h": "Now run the dbt models.", "ts": 100.5935798072821}, {"h": "Take a look at the built dataset and commit it.", "ts": 121.0935798072821}, {"h": "Check out the new version of the raw dataset and run dbt against it as well.", "ts": 135.59357980728208}, {"h": "Create an image from the new data.", "ts": 157.09357980728208}, {"h": "We now have two versions of the source and the target dataset.", "ts": 167.09357980728208}, {"h": "Inspect the difference between the two datasets that dbt built.", "ts": 174.98909067153997}, {"h": "Run a sample query: how much in bank transfer refunds did we process?", "ts": 184.48909067153997}]}}
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+[4.057725353240964, "o", "Receiving objects:  13% (38/290)\r"]
+[4.058137578964231, "o", "Receiving objects:  14% (41/290)\r"]
+[4.058460159301755, "o", "Receiving objects:  15% (44/290)\r"]
+[4.058838052749631, "o", "Receiving objects:  16% (47/290)\r"]
+[4.058894319534299, "o", "Receiving objects:  17% (50/290)\r"]
+[4.059290094375608, "o", "Receiving objects:  18% (53/290)\r"]
+[4.059917612075803, "o", "Receiving objects:  19% (56/290)\rReceiving objects:  20% (58/290)\r"]
+[4.060208482742307, "o", "Receiving objects:  21% (61/290)\r"]
+[4.060556335449216, "o", "Receiving objects:  22% (64/290)\r"]
+[4.060568971633908, "o", "Receiving objects:  23% (67/290)\r"]
+[4.090220375061032, "o", "Receiving objects:  24% (70/290)\r"]
+[4.090275926589963, "o", "Receiving objects:  25% (73/290)\r"]
+[4.090326948165891, "o", "remote: Total 290 (delta 9), reused 12 (delta 4), pack-reused 271        "]
+[4.090410871505735, "o", "\r\n"]
+[4.0904528331756564, "o", "Receiving objects:  26% (76/290)\r"]
+[4.090610666275022, "o", "Receiving objects:  27% (79/290)\r"]
+[4.090620918273923, "o", "Receiving objects:  28% (82/290)\r"]
+[4.09064023017883, "o", "Receiving objects:  29% (85/290)\r"]
+[4.090716285705564, "o", "Receiving objects:  30% (87/290)\r"]
+[4.09077302932739, "o", "Receiving objects:  31% (90/290)\r"]
+[4.0907887649536105, "o", "Receiving objects:  32% (93/290)\r"]
+[4.090876264572141, "o", "Receiving objects:  33% (96/290)\r"]
+[4.09088174819946, "o", "Receiving objects:  34% (99/290)\r"]
+[4.0908872318267795, "o", "Receiving objects:  35% (102/290)\r"]
+[4.0909012985229465, "o", "Receiving objects:  36% (105/290)\r"]
+[4.090939207077024, "o", "Receiving objects:  37% (108/290)\r"]
+[4.09094540596008, "o", "Receiving objects:  38% (111/290)\r"]
+[4.0910069179534885, "o", "Receiving objects:  39% (114/290)\r"]
+[4.091013593673703, "o", "Receiving objects:  40% (116/290)\r"]
+[4.091066761016843, "o", "Receiving objects:  41% (119/290)\r"]
+[4.091072006225583, "o", "Receiving objects:  42% (122/290)\r"]
+[4.091077728271482, "o", "Receiving objects:  43% (125/290)\r"]
+[4.091116113662717, "o", "Receiving objects:  44% (128/290)\rReceiving objects:  45% (131/290)\r"]
+[4.091161174774167, "o", "Receiving objects:  46% (134/290)\r"]
+[4.091187162399289, "o", "Receiving objects:  47% (137/290)\r"]
+[4.0912040901184055, "o", "Receiving objects:  48% (140/290)\rReceiving objects:  49% (143/290)\r"]
+[4.091209573745725, "o", "Receiving objects:  50% (145/290)\rReceiving objects:  51% (148/290)\r"]
+[4.091237230300901, "o", "Receiving objects:  52% (151/290)\rReceiving objects:  53% (154/290)\r"]
+[4.091268224716184, "o", "Receiving objects:  54% (157/290)\rReceiving objects:  55% (160/290)\r"]
+[4.091326875686643, "o", "Receiving objects:  56% (163/290)\r"]
+[4.091332597732541, "o", "Receiving objects:  57% (166/290)\rReceiving objects:  58% (169/290)\r"]
+[4.091345233917234, "o", "Receiving objects:  59% (172/290)\r"]
+[4.0913802814483615, "o", "Receiving objects:  60% (174/290)\rReceiving objects:  61% (177/290)\r"]
+[4.091386480331418, "o", "Receiving objects:  62% (180/290)\r"]
+[4.0913919639587375, "o", "Receiving objects:  63% (183/290)\r"]
+[4.091430349349973, "o", "Receiving objects:  64% (186/290)\r"]
+[4.091436071395871, "o", "Receiving objects:  65% (189/290)\r"]
+[4.091441555023191, "o", "Receiving objects:  66% (192/290)\rReceiving objects:  67% (195/290)\r"]
+[4.0914975833892795, "o", "Receiving objects:  68% (198/290)\r"]
+[4.091503067016599, "o", "Receiving objects:  69% (201/290)\r"]
+[4.091514987945554, "o", "Receiving objects:  70% (203/290)\r"]
+[4.091587228775022, "o", "Receiving objects:  71% (206/290)\rReceiving objects:  72% (209/290)\r"]
+[4.091602964401242, "o", "Receiving objects:  73% (212/290)\r"]
+[4.091614646911618, "o", "Receiving objects:  74% (215/290)\r"]
+[4.0916430187225314, "o", "Receiving objects:  75% (218/290)\r"]
+[4.091648263931272, "o", "Receiving objects:  76% (221/290)\r"]
+[4.0916673374176, "o", "Receiving objects:  77% (224/290)\r"]
+[4.091671867370603, "o", "Receiving objects:  78% (227/290)\r"]
+[4.091740293502805, "o", "Receiving objects:  79% (230/290)\r"]
+[4.091790599822995, "o", "Receiving objects:  80% (232/290)\r"]
+[4.091878337860105, "o", "Receiving objects:  81% (235/290)\r"]
+[4.091884059906003, "o", "Receiving objects:  82% (238/290)\r"]
+[4.091910047531125, "o", "Receiving objects:  83% (241/290)\r"]
+[4.0919155311584445, "o", "Receiving objects:  84% (244/290)\r"]
+[4.0919295978546115, "o", "Receiving objects:  85% (247/290)\r"]
+[4.09195916175842, "o", "Receiving objects:  86% (250/290)\r"]
+[4.092026157379148, "o", "Receiving objects:  87% (253/290)\rReceiving objects:  88% (256/290)\r"]
+[4.092041654586789, "o", "Receiving objects:  89% (259/290)\rReceiving objects:  90% (261/290)\r"]
+[4.09206001281738, "o", "Receiving objects:  91% (264/290)\r"]
+[4.092066211700437, "o", "Receiving objects:  92% (267/290)\rReceiving objects:  93% (270/290)\r"]
+[4.092214984893796, "o", "Receiving objects:  94% (273/290)\r"]
+[4.092247409820554, "o", "Receiving objects:  95% (276/290)\r"]
+[4.092295331954953, "o", "Receiving objects:  96% (279/290)\r"]
+[4.092419786453244, "o", "Receiving objects:  97% (282/290)\r"]
+[4.092439098358152, "o", "Receiving objects:  98% (285/290)\rReceiving objects:  99% (288/290)\r"]
+[4.092443866729734, "o", "Receiving objects: 100% (290/290)\r"]
+[4.09245006561279, "o", "Receiving objects: 100% (290/290), 101.38 KiB | 2.30 MiB/s, done.\r\n"]
+[4.092707080841062, "o", "Resolving deltas:   0% (0/125)\r"]
+[4.092857284545896, "o", "Resolving deltas:   1% (2/125)\r"]
+[4.092868251800534, "o", "Resolving deltas:   2% (3/125)\r"]
+[4.092951221466062, "o", "Resolving deltas:   6% (8/125)\r"]
+[4.0930258464813205, "o", "Resolving deltas:  14% (18/125)\r"]
+[4.09303395271301, "o", "Resolving deltas:  15% (19/125)\r"]
+[4.093132896423337, "o", "Resolving deltas:  16% (20/125)\r"]
+[4.0931855869293186, "o", "Resolving deltas:  20% (25/125)\r"]
+[4.093192977905271, "o", "Resolving deltas:  21% (27/125)\r"]
+[4.093231363296506, "o", "Resolving deltas:  26% (33/125)\r"]
+[4.093297882080075, "o", "Resolving deltas:  31% (39/125)\r"]
+[4.09338943481445, "o", "Resolving deltas:  32% (40/125)\r"]
+[4.093397302627561, "o", "Resolving deltas:  33% (42/125)\r"]
+[4.093435449600217, "o", "Resolving deltas:  35% (44/125)\r"]
+[4.093441886901853, "o", "Resolving deltas:  36% (45/125)\r"]
+[4.093560380935666, "o", "Resolving deltas:  40% (50/125)\r"]
+[4.09359662055969, "o", "Resolving deltas:  41% (52/125)\r"]
+[4.09367887496948, "o", "Resolving deltas:  46% (58/125)\r"]
+[4.09374515533447, "o", "Resolving deltas:  52% (66/125)\r"]
+[4.09375302314758, "o", "Resolving deltas:  53% (67/125)\rResolving deltas:  54% (68/125)\r"]
+[4.093810243606565, "o", "Resolving deltas:  56% (71/125)\r"]
+[4.093952817916867, "o", "Resolving deltas:  61% (77/125)\r"]
+[4.093960924148557, "o", "Resolving deltas:  62% (78/125)\rResolving deltas:  65% (82/125)\r"]
+[4.0940026473999, "o", "Resolving deltas:  67% (84/125)\r"]
+[4.094009084701535, "o", "Resolving deltas:  68% (86/125)\r"]
+[4.094014806747434, "o", "Resolving deltas:  69% (87/125)\r"]
+[4.094128770828244, "o", "Resolving deltas:  72% (90/125)\r"]
+[4.094138069152829, "o", "Resolving deltas:  73% (92/125)\r"]
+[4.094174070358274, "o", "Resolving deltas:  74% (93/125)\r"]
+[4.094297332763669, "o", "Resolving deltas:  76% (96/125)\r"]
+[4.094400091171262, "o", "Resolving deltas:  80% (101/125)\r"]
+[4.094494504928586, "o", "Resolving deltas:  82% (103/125)\r"]
+[4.0945541095733615, "o", "Resolving deltas:  83% (104/125)\r"]
+[4.094628019332883, "o", "Resolving deltas:  85% (107/125)\r"]
+[4.09466855049133, "o", "Resolving deltas:  88% (110/125)\r"]
+[4.094674749374387, "o", "Resolving deltas:  90% (113/125)\r"]
+[4.094717903137204, "o", "Resolving deltas:  92% (115/125)\r"]
+[4.094757003784177, "o", "Resolving deltas:  93% (117/125)\r"]
+[4.094815177917478, "o", "Resolving deltas:  96% (120/125)\r"]
+[4.09500042915344, "o", "Resolving deltas: 100% (125/125)\r"]
+[4.0950094890594455, "o", "Resolving deltas: 100% (125/125), done.\r\n"]
+[4.125009489059446, "o", "\u001b[1m"]
+[4.155009489059446, "o", "\u001b[36m"]
+[4.185009489059446, "o", "\u001b[91m"]
+[4.2150094890594465, "o", "$"]
+[4.245009489059447, "o", " "]
+[4.275009489059447, "o", "\u001b[0m"]
+[11.03, "o", "\u001b[H"]
+[11.059999999999999, "o", "\u001b[J"]
+[11.089999999999998, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Ingest the initial data (in CSV) from this branch of the project."]
+[11.119999999999997, "o", "\r\n"]
+[11.149999999999997, "o", "$"]
+[11.179999999999996, "o", " "]
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+[11.89999999999998, "o", "p"]
+[11.92999999999998, "o", "\r\n"]
+[11.95999999999998, "o", "$"]
+[11.989999999999979, "o", " "]
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+[12.049999999999978, "o", "g"]
+[12.079999999999977, "o", "r"]
+[12.109999999999976, "o", " "]
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+[12.169999999999975, "o", "s"]
+[12.199999999999974, "o", "v"]
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+[12.88999999999996, "o", "/"]
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+[13.219999999999953, "o", "u"]
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+[13.459999999999948, "o", "."]
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+[14.029999999999935, "o", "l"]
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+[17.98999999999997, "o", " "]
+[18.01999999999997, "o", "i"]
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+[81.37248378753735, "o", "dbt version: 0.18.0\r\npython version: 3.7.9\r\npython path: /opt/hostedtoolcache/Python/3.7.9/x64/bin/python\r\nos info: Linux-5.4.0-1025-azure-x86_64-with-debian-buster-sid\r\nUsing profiles.yml file at .dbt/profiles.yml\r\nUsing dbt_project.yml file at /home/runner/work/splitgraph/splitgraph/examples/dbt/jaffle_shop/dbt_project.yml\r\n\r\n"]
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+[81.46215420723034, "o", " - git [\u001b[32mOK found\u001b[0m]\r\n\r\n"]
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+[81.46392994880749, "o", "  host: localhost\r\n  port: 5432"]
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+[81.47611957550122, "o", "  Connection test: \u001b[32mOK connection ok\u001b[0m"]
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+[81.47613698005749, "o", "\r\n"]
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+[82.1924911117561, "o", "Initialized empty repository dbt_jaffle\r\n"]
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+[103.24357980728216, "o", "Running with dbt=0.18.0\r\n"]
+[103.66828578949041, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n\r\n"]
+[104.6548194313056, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 138 macros, 0 operations, 0 seed files, 3 sources\r\n"]
+[104.65729421615667, "o", "\r\n"]
+[104.95744914054937, "o", "08:44:00 | Concurrency: 4 threads (target='splitgraph')\r\n"]
+[104.95756262779302, "o", "08:44:00 | \r\n"]
+[104.96495265007086, "o", "08:44:00 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]\r\n"]
+[104.96801966667242, "o", "08:44:00 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]"]
+[104.96806711196966, "o", "\r\n"]
+[104.96881217002935, "o", "08:44:00 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]"]
+[104.96885127067632, "o", "\r\n"]
+[104.9799758815772, "o", "08:44:00 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]\r\n"]
+[105.24887770652838, "o", "08:44:01 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.26s]"]
+[105.24894279480047, "o", "\r\n"]
+[105.25083130836553, "o", "08:44:01 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.28s]"]
+[105.25086540222235, "o", "\r\n"]
+[105.25384420394964, "o", "08:44:01 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.28s]"]
+[105.25387686729498, "o", "\r\n"]
+[105.25445288658209, "o", "08:44:01 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.27s]"]
+[105.25449675560064, "o", "\r\n"]
+[105.25694269180364, "o", "08:44:01 | 5 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]"]
+[105.2569763088233, "o", "\r\n"]
+[105.25882476806707, "o", "08:44:01 | 6 of 9 START table model dbt_jaffle.customer_payments................ [RUN]"]
+[105.25885838508673, "o", "\r\n"]
+[105.26088112831182, "o", "08:44:01 | 7 of 9 START table model dbt_jaffle.order_payments................... [RUN]"]
+[105.26093310356207, "o", "\r\n"]
+[105.47758287429876, "o", "08:44:01 | 7 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.20s]"]
+[105.47767609596319, "o", "\r\n"]
+[105.47936457634039, "o", "08:44:01 | 5 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.21s]"]
+[105.47939056396551, "o", "\r\n"]
+[105.48024529457159, "o", "08:44:01 | 6 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.21s]"]
+[105.48042077064581, "o", "\r\n"]
+[105.4823271656043, "o", "08:44:01 | 8 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]"]
+[105.4823693656928, "o", "\r\n"]
+[105.50159639358587, "o", "08:44:01 | 9 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]"]
+[105.50163811683721, "o", "\r\n"]
+[105.60529870033331, "o", "08:44:01 | 8 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.12s]"]
+[105.60535830497808, "o", "\r\n"]
+[105.60904520988531, "o", "08:44:01 | 9 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.10s]\r\n"]
+[105.70077222824163, "o", "08:44:01 | \r\n"]
+[105.7009288692481, "o", "08:44:01 | Finished running 4 view models, 5 table models in 1.04s.\r\n"]
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+[105.7416068935401, "o", "\u001b[32mCompleted successfully\u001b[0m\r\n"]
+[105.74176115036077, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
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+[105.96665284156866, "o", "\u001b[1m"]
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+[121.1235798072821, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Take a look at the built dataset and commit it."]
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+[121.1835798072821, "o", "$ # Note Splitgraph doesn't currently support storing views\r\n"]
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+[124.14515652656625, "o", "customer_orders: table added\r\ncustomer_payments: table added\r\ndim_customers: table added\r\nfct_orders: table added\r\norder_payments: table added\r\nstg_jaffle_shop__customers: untracked\r\nstg_jaffle_shop__orders: untracked\r\nstg_jaffle_shop__payments: untracked\r\nstg_stripe__payments: untracked\r\n"]
+[124.54870476722787, "o", "Committing dbt_jaffle...\r\n"]
+[124.5685700416572, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__orders is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[124.56965937614511, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__customers is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[124.5707239151008, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_stripe__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[124.57178583145212, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[124.58597435951303, "o", "Processing table customer_payments\r\n"]
+[124.67811694145273, "o", "Processing table order_payments\r\n"]
+[124.70850863456796, "o", "Processing table customer_orders\r\n"]
+[124.73691883087228, "o", "Processing table fct_orders\r\n"]
+[124.76904358863901, "o", "Processing table dim_customers\r\n"]
+[124.80556812286447, "o", "Committed dbt_jaffle as 95376a46113b.\r\n"]
+[125.27132477760385, "o", "Tagged dbt_jaffle:95376a46113b258f5cb2f14786fac6b93e568a46c690474269acb4971ff820e6 with asof_20180409.\r\n"]
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+[140.8119702720649, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n\r\n"]
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+[142.16669157981943, "o", "08:44:07 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]"]
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+[142.17300013542246, "o", "08:44:07 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]\r\n"]
+[142.41318801879953, "o", "08:44:08 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.24s]"]
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+[142.41958025932382, "o", "08:44:08 | 5 of 9 START table model dbt_jaffle.order_payments................... [RUN]\r\n"]
+[142.4214423084266, "o", "08:44:08 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.25s]\r\n"]
+[142.4377746963508, "o", "08:44:08 | 6 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]"]
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+[142.58863595962595, "o", "08:44:08 | 5 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.16s]"]
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+[142.58924058914255, "o", "08:44:08 | 7 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.12s]"]
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+[142.5915661239631, "o", "08:44:08 | 8 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]\r\n"]
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+[142.69398240089487, "o", "08:44:08 | 8 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.10s]\r\n"]
+[142.70437721252512, "o", "08:44:08 | 9 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.09s]\r\n"]
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+[142.77171377182077, "o", "08:44:08 | Finished running 4 view models, 5 table models in 1.02s.\r\n"]
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+[142.80386952400278, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.2/import-from-csv.cast b/content/casts/versioned/archive/v0.2.2/import-from-csv.cast
new file mode 100644
index 00000000..1689a06f
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/import-from-csv.cast
@@ -0,0 +1,656 @@
+{"version": 2, "width": 100, "height": 45, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1600245760, "metadata": {"tss": [{"h": "Inspect the data file", "ts": 0.06}, {"h": "Initialize the repository", "ts": 6.502290248870851}, {"h": "Ingest the data into a new table (wrapper around COPY FROM STDIN)", "ts": 27.502290248870853}, {"h": "The data is now in a table but not committed as a Splitgraph image", "ts": 36.19229024887099}, {"h": "Create a new image and tag it", "ts": 43.890277671814175}, {"h": "Inspect the image", "ts": 52.237513322830495}, {"h": "Inspect the table", "ts": 59.103409757614486}, {"h": "Inspect object metadata", "ts": 78.60340975761449}]}}
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+[0.06, "o", "\u001b[J"]
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+[0.12, "o", "\r\n"]
+[0.15, "o", "$ # (originally from https://data.townofcary.org/api/v2/catalog/datasets/rdu-weather-history/exports/csv)\r\n"]
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+[1.2622902488708505, "o", "o;No\r\r\n2007-01-14;50.0;73.9;0.0;0.0;0.0;8.5;230;21.03;230;25.05;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No\r\r\n2007-01-15;57.0;73.9;0.0;0.0;0.0;13.2;230;23.94;230;29.08;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No\r\r\n"]
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+[6.502290248870851, "o", "\u001b[J"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.2/import-from-mongo.cast b/content/casts/versioned/archive/v0.2.2/import-from-mongo.cast
new file mode 100644
index 00000000..58203910
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/import-from-mongo.cast
@@ -0,0 +1,630 @@
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+[46.25797801971461, "o", "\u001b[1m\r\nStep 1/1 : FROM MOUNT mongo_fdw originro:originpass@mongo:27017 '{\"s...\u001b[0m\r\n"]
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diff --git a/content/casts/versioned/archive/v0.2.2/metadata.json b/content/casts/versioned/archive/v0.2.2/metadata.json
new file mode 100644
index 00000000..0c2414cf
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.2",
+  "updated_at": "2021-01-26T14:47:56.598Z",
+  "release": {
+    "id": 31385261,
+    "tag_name": "v0.2.2",
+    "target_commitish": "a1628dabe4d84b03494a3450ba275ab4f7e67b17",
+    "created_at": "2020-09-16T08:26:31Z",
+    "published_at": "2020-09-16T09:01:32Z",
+    "assets": [
+      {
+        "id": 25742983,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/25742983",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-09-16T08:51:37Z",
+        "updated_at": "2020-09-16T08:51:38Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.2/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/casts/versioned/archive/v0.2.2/pg-replication.cast b/content/casts/versioned/archive/v0.2.2/pg-replication.cast
new file mode 100644
index 00000000..2cd2085a
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/pg-replication.cast
@@ -0,0 +1,1406 @@
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diff --git a/content/casts/versioned/archive/v0.2.2/postgrest.cast b/content/casts/versioned/archive/v0.2.2/postgrest.cast
new file mode 100644
index 00000000..3d88ab64
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/postgrest.cast
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.2/push-to-other-engine.cast b/content/casts/versioned/archive/v0.2.2/push-to-other-engine.cast
new file mode 100644
index 00000000..414da54d
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/push-to-other-engine.cast
@@ -0,0 +1,889 @@
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.2/splitfiles.cast b/content/casts/versioned/archive/v0.2.2/splitfiles.cast
new file mode 100644
index 00000000..e6b68be6
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/splitfiles.cast
@@ -0,0 +1,1297 @@
+{"version": 2, "width": 100, "height": 31, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1600245986, "metadata": {"tss": [{"h": "Ingest the weather dataset at Raleigh-Durham Airport from the CSV example", "ts": 0.06}, {"h": "Inspect the Splitfile used to create a derivative image", "ts": 13.39914956092835}, {"h": "Run the Splitfile to build a new image", "ts": 21.399149560928354}, {"h": "Much like with Docker, the build result is cached, so running build again checks out the existing image.", "ts": 31.135026884079114}, {"h": "Inspect the new dataset", "ts": 39.0685787677767}, {"h": "Inspect the image's provenance (generated from its metadata)", "ts": 54.0685787677767}, {"h": "We can also see that a new image has been derived from demo/weather", "ts": 62.37339632034332}, {"h": "Now pretend there's been a revision to the source historical weather data", "ts": 69.05623596191441}, {"h": "Use the derivative image's provenance to rebuild it against the revised version", "ts": 82.01429091453613}, {"h": "Compare the two resultant datasets", "ts": 91.8893461799629}]}}
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+[62.37339632034332, "o", "\u001b[J"]
+[62.40339632034332, "o", "\u001b[1m\u001b[36m\u001b[91m$ # We can also see that a new image has been derived from demo/weather"]
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diff --git a/content/casts/versioned/archive/v0.2.2/splitgraph-cloud.cast b/content/casts/versioned/archive/v0.2.2/splitgraph-cloud.cast
new file mode 100644
index 00000000..348b57ee
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/splitgraph-cloud.cast
@@ -0,0 +1,1340 @@
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+[98.22035178184579, "o", "Checked out weather:0c783d32186b.\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.2/us-election.cast b/content/casts/versioned/archive/v0.2.2/us-election.cast
new file mode 100644
index 00000000..803e05db
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.2/us-election.cast
@@ -0,0 +1,447 @@
+{"version": 2, "width": 100, "height": 57, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1600246011, "metadata": {"tss": [{"h": "This example will use Splitgraph to build a dataset that correlates, for every US county,", "ts": 0.06}, {"h": "Now, build the dataset: the Splitgraph engine will automatically download the required data", "ts": 28.060000000000002}, {"h": "Inspect the dataset metadata", "ts": 44.19282010078439}, {"h": "Get the data for New York County (FIPS 36061)", "ts": 61.69282010078439}, {"h": "Do a quick analysis of the dataset.", "ts": 71.22260962486291}]}}
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+[0.12, "o", "\r\n"]
+[0.15, "o", "$ # its voting pattern in the 2016 US Presidential election with the amount of\r\n"]
+[0.18, "o", "$ # Qualified Opportunity Zone areas in it.\r\n"]
+[0.21, "o", "$ #\r\n"]
+[0.24, "o", "$ # First, examine the Splitfile used to build the dataset.\r\n"]
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+[1.321150608062745, "o", "# See the README for data sources.\r\n\r\n# Calculate the number of Census tracts in each county and fraction of QOZ-eligible tracts.\r\n\r\nSQL {\r\n    CREATE TABLE qoz_tract_fraction AS\r\n        WITH county_tracts AS (SELECT\r\n                COUNT(*) AS total_tract_count,\r\n                substring(lpad(\"TractId\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/census:latest\".acs2017_census_tract_data\r\n            GROUP BY county_id\r\n        ), qoz_tracts AS (SELECT\r\n                COUNT(*"]
+[1.3211639595031748, "o", ") AS qoz_tract_count,\r\n                substring(lpad(\"Census Tract Number\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/qoz:latest\".qoz\r\n            GROUP BY county_id\r\n        )\r\n    SELECT\r\n        c.county_id AS county_id,\r\n        COALESCE(q.qoz_tract_count::numeric, 0.0) / total_tract_count AS qoz_tract_fraction\r\n    FROM qoz_tracts q JOIN county_tracts c\r\n        ON q.county_id = c.county_id\r\n}\r\n\r\n# Summarize the Trump/Clinton vote fraction in each county.\r\n\r\nFROM splitgra"]
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+[31.501050033569413, "o", "Gathering remote metadata...\r\n"]
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+[71.22260962486291, "o", "\u001b[J"]
+[71.25260962486291, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Do a quick analysis of the dataset."]
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+[72.45502027511625, "o", "import scipy.stats as ss\r\n\r\nfrom splitgraph.core.repository import Repository\r\nfrom splitgraph.ingestion.pandas import sql_to_df\r\n\r\n# Load the dataset we created into Pandas\r\nimage = Repository(\"\", \"qoz_vote_fraction\").images[\"latest\"]\r\ndf = sql_to_df(\"SELECT * FROM qoz_vote_fraction\", image=image, use_lq=True)\r\nprint(df)\r\n\r\n# Is there a correlation between the Trump vote fraction and the fraction of\r\n# QOZ-qualified tracts in every county?\r\nprint(ss.linregress(df[\"trump_vote_fraction\"], df[\"qoz_tract_fract"]
+[72.45503291130095, "o", "ion\"]))\r\n"]
+[73.45503291130095, "o", "     county_id  qoz_tract_fraction  trump_vote_fraction  clinton_vote_fraction  total_votes\r\n0        01001            0.083333             0.491135               0.160432      37000.0\r\n1        01003            0.187500             0.496056               0.125629     146925.0\r\n2        01005            0.111111             0.330305               0.294998      16512.0\r\n3        01007            0.250000             0.485132               0.134927      13889.0\r\n4        01009            0.111111             "]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.3/bloom-filter.cast b/content/casts/versioned/archive/v0.2.3/bloom-filter.cast
new file mode 100644
index 00000000..a658a315
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/bloom-filter.cast
@@ -0,0 +1,958 @@
+{"version": 2, "width": 100, "height": 56, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1600258861, "metadata": {"tss": [{"h": "This example will use the 2016 US presidential election dataset", "ts": 0.06}, {"h": "The table is sorted by voting precinct and so queries that filter by that", "ts": 8.619999999999997}, {"h": "Currently we have no fragments in cache. Let's run this query and check the cache again", "ts": 18.74341950416556}, {"h": "Since default indexing in Splitgraph is done by min-max values for every column", "ts": 30.84186873435985}, {"h": "Let's download the whole dataset and add a bloom filter index on county_name", "ts": 41.34445113182096}, {"h": "Check the metadata of a new object to see details about the bloom filter structure", "ts": 72.53526582717939}, {"h": "Plan the query again: because the bloom filter can drop most fragments -", "ts": 100.03526582717939}]}}
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+[0.15, "o", "$ # to show off how indexing with a bloom filter can improve query performance.\r\n"]
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+[18.74341950416556, "o", "\u001b[J"]
+[18.77341950416556, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Currently we have no fragments in cache. Let's run this query and check the cache again"]
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+[45.51044670105023, "o", "Need to download 20 objects (20.19 MiB), cache occupancy: 6.63 MiB/10.00 GiB\r\n"]
+[45.566212329864925, "o", "Fetching 15 objects, total size 20.19 MiB\r\n"]
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diff --git a/content/casts/versioned/archive/v0.2.3/dbt.cast b/content/casts/versioned/archive/v0.2.3/dbt.cast
new file mode 100644
index 00000000..d6b66595
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/dbt.cast
@@ -0,0 +1,2082 @@
+{"version": 2, "width": 100, "height": 48, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1600258962, "metadata": {"tss": [{"h": "dbt must be installed for this to work (pip install dbt)", "ts": 0.06}, {"h": "Ingest the initial data (in CSV) from this branch of the project.", "ts": 11.059999999999999}, {"h": "Snapshot the initial data with Splitgraph.", "ts": 25.96524957656867}, {"h": "Inspect the original data", "ts": 35.56981828689594}, {"h": "The status column in the raw_orders table in the initial dataset can", "ts": 48.56981828689594}, {"h": "Commit this dataset and check out the original data", "ts": 59.50380208969155}, {"h": "Check out the 'serious' version of the dbt project that uses data from", "ts": 69.96337610244804}, {"h": "Check that dbt is set up to connect to the Splitgraph engine.", "ts": 76.95084694862426}, {"h": "Now run the dbt models.", "ts": 100.45084694862426}, {"h": "Take a look at the built dataset and commit it.", "ts": 120.95084694862426}, {"h": "Check out the new version of the raw dataset and run dbt against it as well.", "ts": 135.45084694862425}, {"h": "Create an image from the new data.", "ts": 156.95084694862425}, {"h": "We now have two versions of the source and the target dataset.", "ts": 166.95084694862425}, {"h": "Inspect the difference between the two datasets that dbt built.", "ts": 174.74853896141119}, {"h": "Run a sample query: how much in bank transfer refunds did we process?", "ts": 184.24853896141119}]}}
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+[4.674575014114377, "o", "remote: Counting objects:  42% (8/19)        \rremote: Counting objects:  47% (9/19)        \rremote: Counting objects:  52% (10/19)        \rremote: Counting objects:  57% (11/19)        \rremote: Counting objects:  63% (12/19)        \rremote: Counting objects:  68% (13/19)        \rremote: Counting objects:  73% (14/19)        \rremote: Counting objects:  78% (15/19)        \rremote: Counting objects:  84% (16/19)        \rremote: Counting objects:  89% (17/19)        \rremote: Counting objects:  94% (18/19)      "]
+[4.674589080810544, "o", "  \rremote: Counting objects: 100% (19/19)        \rremote: Counting objects: 100% (19/19), done.        \r\nremote: Compressing objects:   6% (1/15)        \rremote: Compressing objects:  13% (2/15)        \rremote: Compressing objects:  20% (3/15)        \rremote: Compressing objects:  26% (4/15)        \rremote: Compressing objects:  33% (5/15)        \rremote: Compressing objects:  40% (6/15)        \rremote: Compressing objects:  46% (7/15)        \rremote: Compressing objects:  53% (8/15)        \rremote: Compres"]
+[4.674596710205075, "o", "sing objects:  60% (9/15)        \rremote: Compressing objects:  66% (10/15)        \rremote: Compressing objects:  73% (11/15)        \rremote: Compressing objects:  80% (12/15)        \rremote: Compressing objects:  86% (13/15)        \rremote: Compressing objects:  93% (14/15)        \rremote: Compressing objects: 100% (15/15)        \rremote: Compressing objects: 100% (15/15), done.        \r\n"]
+[4.689322395324704, "o", "Receiving objects:   0% (1/290)\rReceiving objects:   1% (3/290)\r"]
+[4.689336223602292, "o", "Receiving objects:   2% (6/290)\rReceiving objects:   3% (9/290)\rReceiving objects:   4% (12/290)\rReceiving objects:   5% (15/290)\r"]
+[4.689716739654538, "o", "Receiving objects:   6% (18/290)\r"]
+[4.689776344299314, "o", "Receiving objects:   7% (21/290)\r"]
+[4.689823551177976, "o", "Receiving objects:   8% (24/290)\r"]
+[4.762056989669797, "o", "Receiving objects:   9% (27/290)\r"]
+[4.762089176177976, "o", "Receiving objects:  10% (29/290)\rReceiving objects:  11% (32/290)\rReceiving objects:  12% (35/290)\rReceiving objects:  13% (38/290)\rReceiving objects:  14% (41/290)\r"]
+[4.762098951339719, "o", "Receiving objects:  15% (44/290)\r"]
+[4.762149257659909, "o", "Receiving objects:  16% (47/290)\r"]
+[4.7621871662139865, "o", "Receiving objects:  17% (50/290)\r"]
+[4.762205047607419, "o", "Receiving objects:  18% (53/290)\r"]
+[4.762990159988401, "o", "Receiving objects:  19% (56/290)\r"]
+[4.763000411987302, "o", "Receiving objects:  20% (58/290)\r"]
+[4.775464935302732, "o", "Receiving objects:  21% (61/290)\r"]
+[4.775521440505979, "o", "Receiving objects:  22% (64/290)\r"]
+[4.775555295944211, "o", "Receiving objects:  23% (67/290)\r"]
+[4.864267034530637, "o", "Receiving objects:  24% (70/290)\rReceiving objects:  25% (73/290)\r"]
+[4.86428467750549, "o", "Receiving objects:  26% (76/290)\rReceiving objects:  27% (79/290)\rReceiving objects:  28% (82/290)\rReceiving objects:  29% (85/290)\r"]
+[4.864317340850827, "o", "Receiving objects:  30% (87/290)\r"]
+[4.864391489028928, "o", "Receiving objects:  31% (90/290)\r"]
+[4.864397926330564, "o", "Receiving objects:  32% (93/290)\r"]
+[4.864438219070432, "o", "Receiving objects:  33% (96/290)\r"]
+[4.864453477859494, "o", "Receiving objects:  34% (99/290)\r"]
+[4.864458961486814, "o", "Receiving objects:  35% (102/290)\r"]
+[4.864466352462766, "o", "Receiving objects:  36% (105/290)\r"]
+[4.864493293762204, "o", "Receiving objects:  37% (108/290)\r"]
+[4.864499254226682, "o", "Receiving objects:  38% (111/290)\r"]
+[4.864557428359983, "o", "Receiving objects:  39% (114/290)\rReceiving objects:  40% (116/290)\r"]
+[4.86459795951843, "o", "Receiving objects:  41% (119/290)\r"]
+[4.864611549377439, "o", "Receiving objects:  42% (122/290)\r"]
+[4.864617033004758, "o", "Receiving objects:  43% (125/290)\r"]
+[4.864644451141355, "o", "Receiving objects:  44% (128/290)\rReceiving objects:  45% (131/290)\r"]
+[4.864685935974118, "o", "Receiving objects:  46% (134/290)\r"]
+[4.864705724716184, "o", "Receiving objects:  47% (137/290)\rReceiving objects:  48% (140/290)\rReceiving objects:  49% (143/290)\r"]
+[4.86471740722656, "o", "Receiving objects:  50% (145/290)\r"]
+[4.864736480712888, "o", "Receiving objects:  51% (148/290)\r"]
+[4.864741725921628, "o", "Receiving objects:  52% (151/290)\rReceiving objects:  53% (154/290)\r"]
+[4.864756269454953, "o", "Receiving objects:  54% (157/290)\rReceiving objects:  55% (160/290)\r"]
+[4.864804668426511, "o", "Receiving objects:  56% (163/290)\r"]
+[4.864810390472409, "o", "Receiving objects:  57% (166/290)\rReceiving objects:  58% (169/290)\rReceiving objects:  59% (172/290)\r"]
+[4.8648366165161105, "o", "Receiving objects:  60% (174/290)\rReceiving objects:  61% (177/290)\r"]
+[4.864848537445066, "o", "Receiving objects:  62% (180/290)\r"]
+[4.864854259490964, "o", "Receiving objects:  63% (183/290)\r"]
+[4.8648599815368625, "o", "Receiving objects:  64% (186/290)\r"]
+[4.864864988327024, "o", "Receiving objects:  65% (189/290)\r"]
+[4.864870471954343, "o", "Receiving objects:  66% (192/290)\rReceiving objects:  67% (195/290)\r"]
+[4.864925546646115, "o", "Receiving objects:  68% (198/290)\r"]
+[4.864938182830808, "o", "Receiving objects:  69% (201/290)\rReceiving objects:  70% (203/290)\r"]
+[4.931073350906369, "o", "remote: Total 290 (delta 9), reused 12 (delta 4), pack-reused 271        \r\n"]
+[4.931290550231931, "o", "Receiving objects:  71% (206/290)\rReceiving objects:  72% (209/290)\r"]
+[4.931315107345578, "o", "Receiving objects:  73% (212/290)\rReceiving objects:  74% (215/290)\r"]
+[4.931323928833005, "o", "Receiving objects:  75% (218/290)\rReceiving objects:  76% (221/290)\r"]
+[4.931366844177243, "o", "Receiving objects:  77% (224/290)\rReceiving objects:  78% (227/290)\r"]
+[4.931490583419797, "o", "Receiving objects:  79% (230/290)\r"]
+[4.931548995971677, "o", "Receiving objects:  80% (232/290)\r"]
+[4.931670589447019, "o", "Receiving objects:  81% (235/290)\r"]
+[4.931678457260129, "o", "Receiving objects:  82% (238/290)\r"]
+[4.931707782745359, "o", "Receiving objects:  83% (241/290)\r"]
+[4.932297630310056, "o", "Receiving objects:  84% (244/290)\rReceiving objects:  85% (247/290)\rReceiving objects:  86% (250/290)\rReceiving objects:  87% (253/290)\rReceiving objects:  88% (256/290)\rReceiving objects:  89% (259/290)\rReceiving objects:  90% (261/290)\rReceiving objects:  91% (264/290)\rReceiving objects:  92% (267/290)\rReceiving objects:  93% (270/290)\r"]
+[4.932312889099118, "o", "Receiving objects:  94% (273/290)\rReceiving objects:  95% (276/290)\r"]
+[4.932574672698972, "o", "Receiving objects:  96% (279/290)\rReceiving objects:  97% (282/290)\rReceiving objects:  98% (285/290)\rReceiving objects:  99% (288/290)\rReceiving objects: 100% (290/290)\r"]
+[4.932620925903318, "o", "Receiving objects: 100% (290/290), 101.38 KiB | 415.00 KiB/s, done.\r\n"]
+[4.932875795364377, "o", "Resolving deltas:   0% (0/125)\r"]
+[4.932979507446286, "o", "Resolving deltas:   1% (2/125)\r"]
+[4.933027667999265, "o", "Resolving deltas:   2% (3/125)\r"]
+[4.933056755065915, "o", "Resolving deltas:   3% (4/125)\r"]
+[4.933271570205686, "o", "Resolving deltas:  14% (18/125)\r"]
+[4.933347148895261, "o", "Resolving deltas:  16% (20/125)\r"]
+[4.933478279113767, "o", "Resolving deltas:  17% (22/125)\r"]
+[4.933557910919187, "o", "Resolving deltas:  21% (27/125)\r"]
+[4.933581275939939, "o", "Resolving deltas:  23% (29/125)\r"]
+[4.933686895370481, "o", "Resolving deltas:  28% (35/125)\r"]
+[4.9337100219726535, "o", "Resolving deltas:  32% (40/125)\r"]
+[4.933875007629392, "o", "Resolving deltas:  33% (42/125)\rResolving deltas:  36% (46/125)\r"]
+[4.933879776000974, "o", "Resolving deltas:  38% (48/125)\r"]
+[4.9340011310577365, "o", "Resolving deltas:  39% (49/125)\rResolving deltas:  41% (52/125)\r"]
+[4.934008998870847, "o", "Resolving deltas:  42% (53/125)\rResolving deltas:  43% (54/125)\r"]
+[4.934110803604123, "o", "Resolving deltas:  52% (66/125)\r"]
+[4.934129400253293, "o", "Resolving deltas:  57% (72/125)\r"]
+[4.93429486274719, "o", "Resolving deltas:  58% (73/125)\rResolving deltas:  59% (74/125)\rResolving deltas:  60% (76/125)\rResolving deltas:  64% (80/125)\r"]
+[4.934535188674924, "o", "Resolving deltas:  68% (85/125)\rResolving deltas:  69% (87/125)\rResolving deltas:  71% (89/125)\rResolving deltas:  72% (90/125)\rResolving deltas:  73% (92/125)\rResolving deltas:  75% (94/125)\r"]
+[4.934542341232297, "o", "Resolving deltas:  76% (95/125)\rResolving deltas:  80% (100/125)\rResolving deltas:  82% (103/125)\r"]
+[4.934708518981931, "o", "Resolving deltas:  83% (104/125)\rResolving deltas:  84% (106/125)\r"]
+[4.934814376831052, "o", "Resolving deltas:  86% (108/125)\r"]
+[4.934818906784055, "o", "Resolving deltas:  88% (111/125)\r"]
+[4.934999151229856, "o", "Resolving deltas:  91% (114/125)\rResolving deltas:  92% (115/125)\rResolving deltas:  93% (117/125)\r"]
+[4.93511740684509, "o", "Resolving deltas:  97% (122/125)\r"]
+[4.9351560306549045, "o", "Resolving deltas: 100% (125/125)\r"]
+[4.935416860580442, "o", "Resolving deltas: 100% (125/125), done.\r\n"]
+[4.965416860580442, "o", "\u001b[1m"]
+[4.995416860580442, "o", "\u001b[36m"]
+[5.025416860580442, "o", "\u001b[91m"]
+[5.055416860580443, "o", "$"]
+[5.085416860580443, "o", " "]
+[5.115416860580443, "o", "\u001b[0m"]
+[11.03, "o", "\u001b[H"]
+[11.059999999999999, "o", "\u001b[J"]
+[11.089999999999998, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Ingest the initial data (in CSV) from this branch of the project."]
+[11.119999999999997, "o", "\r\n"]
+[11.149999999999997, "o", "$"]
+[11.179999999999996, "o", " "]
+[11.209999999999996, "o", "s"]
+[11.239999999999995, "o", "g"]
+[11.269999999999994, "o", "r"]
+[11.299999999999994, "o", " "]
+[11.329999999999993, "o", "i"]
+[11.359999999999992, "o", "n"]
+[11.389999999999992, "o", "i"]
+[11.419999999999991, "o", "t"]
+[11.44999999999999, "o", " "]
+[11.47999999999999, "o", "r"]
+[11.50999999999999, "o", "a"]
+[11.539999999999988, "o", "w"]
+[11.569999999999988, "o", "_"]
+[11.599999999999987, "o", "j"]
+[11.629999999999987, "o", "a"]
+[11.659999999999986, "o", "f"]
+[11.689999999999985, "o", "f"]
+[11.719999999999985, "o", "l"]
+[11.749999999999984, "o", "e"]
+[11.779999999999983, "o", "_"]
+[11.809999999999983, "o", "s"]
+[11.839999999999982, "o", "h"]
+[11.869999999999981, "o", "o"]
+[11.89999999999998, "o", "p"]
+[11.92999999999998, "o", "\r\n"]
+[11.95999999999998, "o", "$"]
+[11.989999999999979, "o", " "]
+[12.019999999999978, "o", "s"]
+[12.049999999999978, "o", "g"]
+[12.079999999999977, "o", "r"]
+[12.109999999999976, "o", " "]
+[12.139999999999976, "o", "c"]
+[12.169999999999975, "o", "s"]
+[12.199999999999974, "o", "v"]
+[12.229999999999974, "o", " "]
+[12.259999999999973, "o", "i"]
+[12.289999999999973, "o", "m"]
+[12.319999999999972, "o", "p"]
+[12.349999999999971, "o", "o"]
+[12.37999999999997, "o", "r"]
+[12.40999999999997, "o", "t"]
+[12.43999999999997, "o", " "]
+[12.469999999999969, "o", "-"]
+[12.499999999999968, "o", "f"]
+[12.529999999999967, "o", " "]
+[12.559999999999967, "o", "j"]
+[12.589999999999966, "o", "a"]
+[12.619999999999965, "o", "f"]
+[12.649999999999965, "o", "f"]
+[12.679999999999964, "o", "l"]
+[12.709999999999964, "o", "e"]
+[12.739999999999963, "o", "_"]
+[12.769999999999962, "o", "s"]
+[12.799999999999962, "o", "h"]
+[12.829999999999961, "o", "o"]
+[12.85999999999996, "o", "p"]
+[12.88999999999996, "o", "/"]
+[12.919999999999959, "o", "d"]
+[12.949999999999958, "o", "a"]
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+[13.009999999999957, "o", "a"]
+[13.039999999999957, "o", "/"]
+[13.069999999999956, "o", "r"]
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+[13.129999999999955, "o", "w"]
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+[13.219999999999953, "o", "u"]
+[13.249999999999952, "o", "s"]
+[13.279999999999951, "o", "t"]
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+[13.33999999999995, "o", "m"]
+[13.36999999999995, "o", "e"]
+[13.399999999999949, "o", "r"]
+[13.429999999999948, "o", "s"]
+[13.459999999999948, "o", "."]
+[13.489999999999947, "o", "c"]
+[13.519999999999946, "o", "s"]
+[13.549999999999946, "o", "v"]
+[13.579999999999945, "o", " "]
+[13.609999999999944, "o", "-"]
+[13.639999999999944, "o", "k"]
+[13.669999999999943, "o", " "]
+[13.699999999999942, "o", "i"]
+[13.729999999999942, "o", "d"]
+[13.759999999999941, "o", " "]
+[13.78999999999994, "o", "r"]
+[13.81999999999994, "o", "a"]
+[13.84999999999994, "o", "w"]
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+[13.969999999999937, "o", "f"]
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+[14.029999999999935, "o", "l"]
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+[14.239999999999931, "o", " "]
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+[14.29999999999993, "o", "u"]
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+[14.419999999999927, "o", "m"]
+[14.449999999999926, "o", "e"]
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+[14.539999999999925, "o", "\r\n"]
+[14.569999999999924, "o", "$"]
+[14.599999999999923, "o", " "]
+[14.629999999999923, "o", "s"]
+[14.659999999999922, "o", "g"]
+[14.689999999999921, "o", "r"]
+[14.71999999999992, "o", " "]
+[14.74999999999992, "o", "c"]
+[14.77999999999992, "o", "s"]
+[14.809999999999919, "o", "v"]
+[14.839999999999918, "o", " "]
+[14.869999999999918, "o", "i"]
+[14.899999999999917, "o", "m"]
+[14.929999999999916, "o", "p"]
+[14.959999999999916, "o", "o"]
+[14.989999999999915, "o", "r"]
+[15.019999999999914, "o", "t"]
+[15.049999999999914, "o", " "]
+[15.079999999999913, "o", "-"]
+[15.109999999999912, "o", "f"]
+[15.139999999999912, "o", " "]
+[15.169999999999911, "o", "j"]
+[15.19999999999991, "o", "a"]
+[15.22999999999991, "o", "f"]
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+[15.289999999999909, "o", "l"]
+[15.319999999999908, "o", "e"]
+[15.349999999999907, "o", "_"]
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+[15.439999999999905, "o", "o"]
+[15.469999999999905, "o", "p"]
+[15.499999999999904, "o", "/"]
+[15.529999999999903, "o", "d"]
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+[15.949999999999894, "o", "s"]
+[15.979999999999894, "o", "."]
+[16.009999999999895, "o", "c"]
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+[16.069999999999897, "o", "v"]
+[16.0999999999999, "o", " "]
+[16.1299999999999, "o", "-"]
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+[16.189999999999902, "o", " "]
+[16.219999999999903, "o", "i"]
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+[16.279999999999905, "o", " "]
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+[16.39999999999991, "o", "o"]
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+[16.489999999999913, "o", "e"]
+[16.519999999999914, "o", "r"]
+[16.549999999999915, "o", "_"]
+[16.579999999999917, "o", "d"]
+[16.609999999999918, "o", "a"]
+[16.63999999999992, "o", "t"]
+[16.66999999999992, "o", "e"]
+[16.69999999999992, "o", " "]
+[16.729999999999922, "o", "t"]
+[16.759999999999923, "o", "i"]
+[16.789999999999925, "o", "m"]
+[16.819999999999926, "o", "e"]
+[16.849999999999927, "o", "s"]
+[16.879999999999928, "o", "t"]
+[16.90999999999993, "o", "a"]
+[16.93999999999993, "o", "m"]
+[16.96999999999993, "o", "p"]
+[16.999999999999932, "o", " "]
+[17.029999999999934, "o", "r"]
+[17.059999999999935, "o", "a"]
+[17.089999999999936, "o", "w"]
+[17.119999999999937, "o", "_"]
+[17.149999999999938, "o", "j"]
+[17.17999999999994, "o", "a"]
+[17.20999999999994, "o", "f"]
+[17.23999999999994, "o", "f"]
+[17.269999999999943, "o", "l"]
+[17.299999999999944, "o", "e"]
+[17.329999999999945, "o", "_"]
+[17.359999999999946, "o", "s"]
+[17.389999999999947, "o", "h"]
+[17.41999999999995, "o", "o"]
+[17.44999999999995, "o", "p"]
+[17.47999999999995, "o", " "]
+[17.509999999999952, "o", "o"]
+[17.539999999999953, "o", "r"]
+[17.569999999999954, "o", "d"]
+[17.599999999999955, "o", "e"]
+[17.629999999999956, "o", "r"]
+[17.659999999999958, "o", "s"]
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+[81.15510087966992, "o", "python version: 3.7.9\r\npython path: /opt/hostedtoolcache/Python/3.7.9/x64/bin/python\r\nos info: Linux-5.4.0-1025-azure-x86_64-with-debian-buster-sid\r\nUsing profiles.yml file at .dbt/profiles.yml\r\nUsing dbt_project.yml file at /home/runner/work/splitgraph/splitgraph/examples/dbt/jaffle_shop/dbt_project.yml\r\n\r\n"]
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+[81.2393956756599, "o", " - git [\u001b[32mOK found\u001b[0m]\r\n\r\n"]
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+[81.23964625358654, "o", "  host: localhost\r\n  port: 5432"]
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+[81.25132065773083, "o", "  Connection test: \u001b[32mOK connection ok\u001b[0m\r\n\r\n"]
+[81.3792586898811, "o", "\u001b[0m"]
+[81.79298501968456, "o", "Initialized empty repository dbt_jaffle\r\n"]
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+[103.08363455772466, "o", "Running with dbt=0.18.0\r\n"]
+[103.52301210403509, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n\r\n"]
+[104.45995205879278, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 138 macros, 0 operations, 0 seed files, 3 sources\r\n"]
+[104.46272391319341, "o", "\r\n"]
+[104.8147999668128, "o", "12:23:08 | Concurrency: 4 threads (target='splitgraph')\r\n"]
+[104.81482404708929, "o", "12:23:08 | \r\n"]
+[104.82350439071722, "o", "12:23:08 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]\r\n"]
+[104.82665747642584, "o", "12:23:08 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]"]
+[104.82667535781927, "o", "\r\n"]
+[104.83291477203436, "o", "12:23:08 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]\r\n"]
+[104.83395308494634, "o", "12:23:08 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]\r\n"]
+[105.10325068473882, "o", "12:23:08 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.26s]"]
+[105.10330623626776, "o", "\r\n"]
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+[105.11353725433416, "o", "12:23:08 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.28s]"]
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+[105.11718768119879, "o", "12:23:08 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.28s]\r\n"]
+[105.11965245246954, "o", "12:23:08 | 5 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]\r\n"]
+[105.13146203994818, "o", "12:23:08 | 6 of 9 START table model dbt_jaffle.customer_payments................ [RUN]"]
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+[105.13319677352972, "o", "12:23:08 | 7 of 9 START table model dbt_jaffle.order_payments................... [RUN]"]
+[105.13323396682806, "o", "\r\n"]
+[105.27889079094, "o", "12:23:08 | 5 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.16s]"]
+[105.27891177177496, "o", "\r\n"]
+[105.29204505920477, "o", "12:23:08 | 6 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.16s]"]
+[105.29210752487249, "o", "\r\n"]
+[105.29840511322088, "o", "12:23:08 | 8 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]"]
+[105.29846209526129, "o", "\r\n"]
+[105.30101579666204, "o", "12:23:08 | 7 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.16s]\r\n"]
+[105.31880277633734, "o", "12:23:08 | 9 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]"]
+[105.31882018089361, "o", "\r\n"]
+[105.40690797805853, "o", "12:23:09 | 9 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.08s]"]
+[105.4069539928443, "o", "\r\n"]
+[105.41050666809149, "o", "12:23:09 | 8 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.11s]\r\n"]
+[105.44137305259771, "o", "12:23:09 | \r\n"]
+[105.44147533416815, "o", "12:23:09 | Finished running 4 view models, 5 table models in 0.98s.\r\n"]
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+[105.48242634773321, "o", "\u001b[32mCompleted successfully\u001b[0m\r\n"]
+[105.48244780540533, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
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+[124.43381443023752, "o", "Committing dbt_jaffle...\r\n"]
+[124.45007195472787, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_stripe__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[124.45112290382455, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__orders is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[124.4518696308143, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__customers is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[124.4526921749122, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[124.46084942817758, "o", "Processing table customer_orders\r\n"]
+[124.53341569900583, "o", "Processing table customer_payments\r\n"]
+[124.55411376953195, "o", "Processing table order_payments\r\n"]
+[124.578436040879, "o", "Processing table dim_customers\r\n"]
+[124.60300698280405, "o", "Processing table fct_orders\r\n"]
+[124.64234890937875, "o", "Committed dbt_jaffle as 48b0d0fedc39.\r\n"]
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+[140.5062287235267, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n\r\n"]
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+[141.86018327713083, "o", "12:23:14 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]\r\n"]
+[141.8605418586738, "o", "12:23:14 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]"]
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+[142.12284783363413, "o", "12:23:15 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.25s]\r\n"]
+[142.12323216438364, "o", "12:23:15 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.25s]"]
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+[142.3269107723243, "o", "12:23:15 | 7 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.18s]"]
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+[142.3271036529548, "o", "12:23:15 | 8 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]"]
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+[142.43599061012338, "o", "12:23:15 | 8 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.11s]"]
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+[142.43947366714548, "o", "12:23:15 | 9 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.09s]\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.3/import-from-csv.cast b/content/casts/versioned/archive/v0.2.3/import-from-csv.cast
new file mode 100644
index 00000000..a5f2e693
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/import-from-csv.cast
@@ -0,0 +1,594 @@
+{"version": 2, "width": 100, "height": 45, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1600258910, "metadata": {"tss": [{"h": "Inspect the data file", "ts": 0.06}, {"h": "Initialize the repository", "ts": 6.502146720886232}, {"h": "Ingest the data into a new table (wrapper around COPY FROM STDIN)", "ts": 27.502146720886234}, {"h": "The data is now in a table but not committed as a Splitgraph image", "ts": 36.19214672088637}, {"h": "Create a new image and tag it", "ts": 43.86267571449301}, {"h": "Inspect the image", "ts": 52.123714466095265}, {"h": "Inspect the table", "ts": 58.99069737434422}, {"h": "Inspect object metadata", "ts": 78.49069737434422}]}}
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+[0.12, "o", "\r\n"]
+[0.15, "o", "$ # (originally from https://data.townofcary.org/api/v2/catalog/datasets/rdu-weather-history/exports/csv)\r\n"]
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diff --git a/content/casts/versioned/archive/v0.2.3/import-from-mongo.cast b/content/casts/versioned/archive/v0.2.3/import-from-mongo.cast
new file mode 100644
index 00000000..9193b5cf
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/import-from-mongo.cast
@@ -0,0 +1,630 @@
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diff --git a/content/casts/versioned/archive/v0.2.3/metadata.json b/content/casts/versioned/archive/v0.2.3/metadata.json
new file mode 100644
index 00000000..a42090f1
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.3",
+  "updated_at": "2021-01-26T14:47:54.427Z",
+  "release": {
+    "id": 31397249,
+    "tag_name": "v0.2.3",
+    "target_commitish": "62311d4a66e546182ea988bc0b7a7fcf19e77a56",
+    "created_at": "2020-09-16T12:06:56Z",
+    "published_at": "2020-12-08T10:48:44Z",
+    "assets": [
+      {
+        "id": 25757519,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/25757519",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-09-16T12:29:49Z",
+        "updated_at": "2020-09-16T12:29:50Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.3/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/casts/versioned/archive/v0.2.3/pg-replication.cast b/content/casts/versioned/archive/v0.2.3/pg-replication.cast
new file mode 100644
index 00000000..e2d2e716
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/pg-replication.cast
@@ -0,0 +1,1403 @@
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.3/postgrest.cast b/content/casts/versioned/archive/v0.2.3/postgrest.cast
new file mode 100644
index 00000000..82736726
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/postgrest.cast
@@ -0,0 +1,1166 @@
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.3/push-to-other-engine.cast b/content/casts/versioned/archive/v0.2.3/push-to-other-engine.cast
new file mode 100644
index 00000000..0f5ab6e3
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/push-to-other-engine.cast
@@ -0,0 +1,888 @@
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.3/splitfiles.cast b/content/casts/versioned/archive/v0.2.3/splitfiles.cast
new file mode 100644
index 00000000..07079774
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/splitfiles.cast
@@ -0,0 +1,1296 @@
+{"version": 2, "width": 100, "height": 31, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1600259123, "metadata": {"tss": [{"h": "Ingest the weather dataset at Raleigh-Durham Airport from the CSV example", "ts": 0.06}, {"h": "Inspect the Splitfile used to create a derivative image", "ts": 13.37828912734986}, {"h": "Run the Splitfile to build a new image", "ts": 21.378289127349863}, {"h": "Much like with Docker, the build result is cached, so running build again checks out the existing image.", "ts": 31.029979658126965}, {"h": "Inspect the new dataset", "ts": 38.96193127632162}, {"h": "Inspect the image's provenance (generated from its metadata)", "ts": 53.96193127632162}, {"h": "We can also see that a new image has been derived from demo/weather", "ts": 62.10210577964813}, {"h": "Now pretend there's been a revision to the source historical weather data", "ts": 68.7568477916721}, {"h": "Use the derivative image's provenance to rebuild it against the revised version", "ts": 81.69801651001038}, {"h": "Compare the two resultant datasets", "ts": 91.52544146537855}]}}
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+[45.03460261344952, "o", "  source_data\r\n"]
+[45.438434095383116, "o", "Table demo/summary:d7a5f13c5e4a65fee7b07ea18dc05eee0ffadce97fa1c39ecb143b22229d4bb9/monthly_summary\r\n\r\n"]
+[45.440036745071836, "o", "Size: 2.17 KiB\r\n"]
+[45.441114873886534, "o", "Rows: 153\r\nColumns: \r\n"]
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+[53.96193127632162, "o", "\u001b[J"]
+[53.99193127632162, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Inspect the image's provenance (generated from its metadata)"]
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+[56.0619312763217, "o", "\u001b[0m"]
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+[56.475672178268724, "o", "demo/summary:d7a5f13c5e4a65fee7b07ea18dc05eee0ffadce97fa1c39ecb143b22229d4bb9 depends on:\r\n"]
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+[56.86209218978911, "o", "# Splitfile commands used to recreate demo/summary:d7a5f13c5e4a65fee7b07ea18dc05eee0ffadce97fa1c39ecb143b22229d4bb9\r\n"]
+[56.86210577964812, "o", "FROM demo/weather:d55450732ac3ebd7d0f48cb3e5c02c266ee4a6ddb7a25e62021d22371a718d0a IMPORT rdu AS source_data\r\nSQL {CREATE TABLE monthly_summary\r\n  AS SELECT to_char(date, 'YYYYMM') AS month\r\n          , avg(precipitation) AS average_precipitation\r\n          , avg(snowfall) AS average_snowfall\r\n     FROM source_data\r\n     GROUP BY month\r\n     ORDER BY month ASC}\r\n"]
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+[62.10210577964813, "o", "\u001b[J"]
+[62.13210577964813, "o", "\u001b[1m\u001b[36m\u001b[91m$ # We can also see that a new image has been derived from demo/weather"]
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diff --git a/content/casts/versioned/archive/v0.2.3/splitgraph-cloud.cast b/content/casts/versioned/archive/v0.2.3/splitgraph-cloud.cast
new file mode 100644
index 00000000..2b116e01
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/splitgraph-cloud.cast
@@ -0,0 +1,1339 @@
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.3/us-election.cast b/content/casts/versioned/archive/v0.2.3/us-election.cast
new file mode 100644
index 00000000..c024f16c
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.3/us-election.cast
@@ -0,0 +1,444 @@
+{"version": 2, "width": 100, "height": 57, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1600259147, "metadata": {"tss": [{"h": "This example will use Splitgraph to build a dataset that correlates, for every US county,", "ts": 0.06}, {"h": "Now, build the dataset: the Splitgraph engine will automatically download the required data", "ts": 28.060000000000002}, {"h": "Inspect the dataset metadata", "ts": 44.06}, {"h": "Get the data for New York County (FIPS 36061)", "ts": 61.56}, {"h": "Do a quick analysis of the dataset.", "ts": 71.0669592761995}]}}
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+[0.09, "o", "\u001b[1m\u001b[36m\u001b[91m$ # This example will use Splitgraph to build a dataset that correlates, for every US county,"]
+[0.12, "o", "\r\n"]
+[0.15, "o", "$ # its voting pattern in the 2016 US Presidential election with the amount of\r\n"]
+[0.18, "o", "$ # Qualified Opportunity Zone areas in it.\r\n"]
+[0.21, "o", "$ #\r\n"]
+[0.24, "o", "$ # First, examine the Splitfile used to build the dataset.\r\n"]
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+[1.3211730194091806, "o", "# See the README for data sources.\r\n\r\n# Calculate the number of Census tracts in each county and fraction of QOZ-eligible tracts.\r\n\r\nSQL {\r\n    CREATE TABLE qoz_tract_fraction AS\r\n        WITH county_tracts AS (SELECT\r\n                COUNT(*) AS total_tract_count,\r\n                substring(lpad(\"TractId\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/census:latest\".acs2017_census_tract_data\r\n            GROUP BY county_id\r\n        ), qoz_tracts AS (SELECT\r\n                COUNT(*"]
+[1.3211818408966074, "o", ") AS qoz_tract_count,\r\n                substring(lpad(\"Census Tract Number\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/qoz:latest\".qoz\r\n            GROUP BY county_id\r\n        )\r\n    SELECT\r\n        c.county_id AS county_id,\r\n        COALESCE(q.qoz_tract_count::numeric, 0.0) / total_tract_count AS qoz_tract_fraction\r\n    FROM qoz_tracts q JOIN county_tracts c\r\n        ON q.county_id = c.county_id\r\n}\r\n\r\n# Summarize the Trump/Clinton vote fraction in each county.\r\n\r\nFROM splitgra"]
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+[72.29872953414937, "o", "import scipy.stats as ss"]
+[72.29987513542196, "o", "\r\n\r\nfrom splitgraph.core.repository import Repository\r\nfrom splitgraph.ingestion.pandas import sql_to_df\r\n\r\n# Load the dataset we created into Pandas\r\nimage = Repository(\"\", \"qoz_vote_fraction\").images[\"latest\"]\r\ndf = sql_to_df(\"SELECT * FROM qoz_vote_fraction\", image=image, use_lq=True)\r\nprint(df)\r\n\r\n# Is there a correlation between the Trump vote fraction and the fraction of\r\n# QOZ-qualified tracts in every county?\r\nprint(ss.linregress(df[\"trump_vote_fraction\"], df[\"qoz_tract_fraction\"]))\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.4/bloom-filter.cast b/content/casts/versioned/archive/v0.2.4/bloom-filter.cast
new file mode 100644
index 00000000..019a219e
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/bloom-filter.cast
@@ -0,0 +1,965 @@
+{"version": 2, "width": 100, "height": 56, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1607423691, "metadata": {"tss": [{"h": "This example will use the 2016 US presidential election dataset", "ts": 0.06}, {"h": "The table is sorted by voting precinct and so queries that filter by that", "ts": 8.619999999999997}, {"h": "Currently we have no fragments in cache. Let's run this query and check the cache again", "ts": 18.82778034210196}, {"h": "Since default indexing in Splitgraph is done by min-max values for every column", "ts": 31.129249668121446}, {"h": "Let's download the whole dataset and add a bloom filter index on county_name", "ts": 41.70565456390409}, {"h": "Check the metadata of a new object to see details about the bloom filter structure", "ts": 73.22269239425702}, {"h": "Plan the query again: because the bloom filter can drop most fragments -", "ts": 100.72269239425702}]}}
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+[45.99998966217083, "o", "Need to download 20 objects (20.19 MiB), cache occupancy: 6.63 MiB/10.00 GiB\r\n"]
+[46.05301156997723, "o", "Fetching 15 objects, total size 20.19 MiB\r\n"]
+[46.05629960060162, "o", "Getting download URLs from registry PostgresEngine data.splitgraph.com (ca446922b2844ed19f8e6c8b35edbe31@data.splitgraph.com:5432/sgregistry)...\r\n"]
+[47.05629960060162, "o", "\r  0%|                                                                                           | 0/15 [00:00<?, ?obj/s]"]
+[48.05629960060162, "o", "\r  0%|                                                                     | 0/15 [00:02<?, ?obj/s, object=o07f95f994...]"]
+[48.05669489860577, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:37,  2.65s/obj, object=o07f95f994...]"]
+[48.05705824852032, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:37,  2.65s/obj, object=o2551aa953...]"]
+[48.17866960525555, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:37,  2.65s/obj, object=o2630ae563...]"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.4/dbt.cast b/content/casts/versioned/archive/v0.2.4/dbt.cast
new file mode 100644
index 00000000..35903678
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/dbt.cast
@@ -0,0 +1,2202 @@
+{"version": 2, "width": 100, "height": 48, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1607423801, "metadata": {"tss": [{"h": "dbt must be installed for this to work (pip install dbt)", "ts": 0.06}, {"h": "Ingest the initial data (in CSV) from this branch of the project.", "ts": 11.059999999999999}, {"h": "Snapshot the initial data with Splitgraph.", "ts": 26.05696443557746}, {"h": "Inspect the original data", "ts": 35.993750839233584}, {"h": "The status column in the raw_orders table in the initial dataset can", "ts": 48.993750839233584}, {"h": "Commit this dataset and check out the original data", "ts": 60.00442674636879}, {"h": "Check out the 'serious' version of the dbt project that uses data from", "ts": 70.7094224071508}, {"h": "Check that dbt is set up to connect to the Splitgraph engine.", "ts": 77.73201731681884}, {"h": "Now run the dbt models.", "ts": 101.23201731681884}, {"h": "Take a look at the built dataset and commit it.", "ts": 121.73201731681884}, {"h": "Check out the new version of the raw dataset and run dbt against it as well.", "ts": 136.23201731681883}, {"h": "Create an image from the new data.", "ts": 157.73201731681883}, {"h": "We now have two versions of the source and the target dataset.", "ts": 167.73201731681883}, {"h": "Inspect the difference between the two datasets that dbt built.", "ts": 175.73286413192815}, {"h": "Run a sample query: how much in bank transfer refunds did we process?", "ts": 185.23286413192815}]}}
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+[4.115343971252439, "o", "Receiving objects:  13% (38/286)\r"]
+[4.115505142211911, "o", "Receiving objects:  14% (41/286)\rReceiving objects:  15% (43/286)\r"]
+[4.115510625839231, "o", "Receiving objects:  16% (46/286)\r"]
+[4.115555686950681, "o", "Receiving objects:  17% (49/286)\r"]
+[4.126557750701902, "o", "Receiving objects:  18% (52/286)\r"]
+[4.126737518310544, "o", "Receiving objects:  19% (55/286)\r"]
+[4.126810712814328, "o", "Receiving objects:  20% (58/286)\r"]
+[4.12685791969299, "o", "Receiving objects:  21% (61/286)\r"]
+[4.126981420516965, "o", "Receiving objects:  22% (63/286)\r"]
+[4.127028865814206, "o", "Receiving objects:  23% (66/286)\r"]
+[4.1511525344848605, "o", "Receiving objects:  24% (69/286)\r"]
+[4.151163501739499, "o", "Receiving objects:  25% (72/286)\rReceiving objects:  26% (75/286)\rReceiving objects:  27% (78/286)\r"]
+[4.151169700622556, "o", "Receiving objects:  28% (81/286)\r"]
+[4.15120307922363, "o", "Receiving objects:  29% (83/286)\r"]
+[4.151249094009397, "o", "Receiving objects:  30% (86/286)\r"]
+[4.151269121170041, "o", "Receiving objects:  31% (89/286)\r"]
+[4.151298923492429, "o", "Receiving objects:  32% (92/286)\r"]
+[4.15132514953613, "o", "Receiving objects:  33% (95/286)\rReceiving objects:  34% (98/286)\r"]
+[4.151422185897824, "o", "Receiving objects:  35% (101/286)\r"]
+[4.151532335281369, "o", "Receiving objects:  36% (103/286)\r"]
+[4.151603622436521, "o", "Receiving objects:  37% (106/286)\r"]
+[4.151650829315183, "o", "Receiving objects:  38% (109/286)\r"]
+[4.151693983078, "o", "Receiving objects:  39% (112/286)\r"]
+[4.151746673583982, "o", "Receiving objects:  40% (115/286)\r"]
+[4.151786727905271, "o", "Receiving objects:  41% (118/286)\r"]
+[4.151848955154416, "o", "Receiving objects:  42% (121/286)\r"]
+[4.151878995895383, "o", "Receiving objects:  43% (123/286)\r"]
+[4.151908082962033, "o", "Receiving objects:  44% (126/286)\r"]
+[4.151947660446164, "o", "Receiving objects:  45% (129/286)\r"]
+[4.151999397277829, "o", "Receiving objects:  46% (132/286)\r"]
+[4.152038021087644, "o", "Receiving objects:  47% (135/286)\r"]
+[4.152075929641721, "o", "Receiving objects:  48% (138/286)\r"]
+[4.152196569442746, "o", "Receiving objects:  49% (141/286)\r"]
+[4.152231855392453, "o", "Receiving objects:  50% (143/286)\r"]
+[4.1522793006896945, "o", "Receiving objects:  51% (146/286)\r"]
+[4.152331991195676, "o", "Receiving objects:  52% (149/286)\r"]
+[4.152362031936643, "o", "Receiving objects:  53% (152/286)\r"]
+[4.152406616210935, "o", "Receiving objects:  54% (155/286)\r"]
+[4.152438325881955, "o", "Receiving objects:  55% (158/286)\r"]
+[4.152467889785764, "o", "Receiving objects:  56% (161/286)\r"]
+[4.152501268386838, "o", "Receiving objects:  57% (164/286)\r"]
+[4.152531309127805, "o", "Receiving objects:  58% (166/286)\r"]
+[4.152560396194455, "o", "Receiving objects:  59% (169/286)\r"]
+[4.152602596282956, "o", "Receiving objects:  60% (172/286)\r"]
+[4.152649087905881, "o", "Receiving objects:  61% (175/286)\r"]
+[4.152683181762693, "o", "Receiving objects:  62% (178/286)\r"]
+[4.152727766036985, "o", "Receiving objects:  63% (181/286)\r"]
+[4.152771158218381, "o", "Receiving objects:  64% (184/286)\r"]
+[4.152815504074094, "o", "Receiving objects:  65% (186/286)\r"]
+[4.152904434204099, "o", "Receiving objects:  66% (189/286)\r"]
+[4.1529390048980686, "o", "Receiving objects:  67% (192/286)\r"]
+[4.152980489730832, "o", "Receiving objects:  68% (195/286)\r"]
+[4.1636408996582, "o", "remote: Total 286 (delta 2), reused 3 (delta 0), pack-reused 272        "]
+[4.163649959564206, "o", "\r\n"]
+[4.163735551834104, "o", "Receiving objects:  69% (198/286)\r"]
+[4.163863105773923, "o", "Receiving objects:  70% (201/286)\r"]
+[4.163911504745481, "o", "Receiving objects:  71% (204/286)\r"]
+[4.163963241577146, "o", "Receiving objects:  72% (206/286)\r"]
+[4.164008779525754, "o", "Receiving objects:  73% (209/286)\r"]
+[4.164065046310422, "o", "Receiving objects:  74% (212/286)\r"]
+[4.164122982025144, "o", "Receiving objects:  75% (215/286)\r"]
+[4.1641771030426, "o", "Receiving objects:  76% (218/286)\r"]
+[4.164231939315793, "o", "Receiving objects:  77% (221/286)\r"]
+[4.164273185729978, "o", "Receiving objects:  78% (224/286)\r"]
+[4.164310855865476, "o", "Receiving objects:  79% (226/286)\r"]
+[4.1643454265594455, "o", "Receiving objects:  80% (229/286)\r"]
+[4.164475126266477, "o", "Receiving objects:  81% (232/286)\r"]
+[4.164557142257688, "o", "Receiving objects:  82% (235/286)\r"]
+[4.164635343551633, "o", "Receiving objects:  83% (238/286)\r"]
+[4.1646811199188205, "o", "Receiving objects:  84% (241/286)\r"]
+[4.16472641944885, "o", "Receiving objects:  85% (244/286)\r"]
+[4.164756698608396, "o", "Receiving objects:  86% (246/286)\r"]
+[4.164802713394162, "o", "Receiving objects:  87% (249/286)\r"]
+[4.164847297668454, "o", "Receiving objects:  88% (252/286)\r"]
+[4.164907855987546, "o", "Receiving objects:  89% (255/286)\r"]
+[4.164937658309934, "o", "Receiving objects:  90% (258/286)\r"]
+[4.1650308799743625, "o", "Receiving objects:  91% (261/286)\r"]
+[4.165079755783078, "o", "Receiving objects:  92% (264/286)\r"]
+[4.165141744613645, "o", "Receiving objects:  93% (266/286)\r"]
+[4.16517750740051, "o", "Receiving objects:  94% (269/286)\r"]
+[4.165255708694455, "o", "Receiving objects:  95% (272/286)\r"]
+[4.165318412780759, "o", "Receiving objects:  96% (275/286)\r"]
+[4.165482444763181, "o", "Receiving objects:  97% (278/286)\r"]
+[4.165572328567502, "o", "Receiving objects:  98% (281/286)\r"]
+[4.165688915252683, "o", "Receiving objects:  99% (284/286)\r"]
+[4.165720863342282, "o", "Receiving objects: 100% (286/286)\r"]
+[4.165781660079953, "o", "Receiving objects: 100% (286/286), 102.41 KiB | 1.55 MiB/s, done."]
+[4.165804309844968, "o", "\r\n"]
+[4.166049165725705, "o", "Resolving deltas:   0% (0/118)\r"]
+[4.16616193771362, "o", "Resolving deltas:   1% (2/118)\r"]
+[4.166339321136472, "o", "Resolving deltas:   2% (3/118)\r"]
+[4.166418476104734, "o", "Resolving deltas:   3% (4/118)\r"]
+[4.166522665023801, "o", "Resolving deltas:   4% (5/118)\r"]
+[4.166598482131955, "o", "Resolving deltas:   5% (6/118)\r"]
+[4.16668478965759, "o", "Resolving deltas:   6% (8/118)\r"]
+[4.166733427047727, "o", "Resolving deltas:   7% (9/118)\r"]
+[4.166842384338376, "o", "Resolving deltas:   8% (10/118)\r"]
+[4.166892690658567, "o", "Resolving deltas:   9% (11/118)\r"]
+[4.166931791305539, "o", "Resolving deltas:  10% (12/118)\r"]
+[4.166967315673825, "o", "Resolving deltas:  11% (13/118)\r"]
+[4.16700856208801, "o", "Resolving deltas:  12% (15/118)\r"]
+[4.167044563293454, "o", "Resolving deltas:  13% (16/118)\r"]
+[4.1670989227294895, "o", "Resolving deltas:  14% (17/118)\r"]
+[4.16714112281799, "o", "Resolving deltas:  15% (18/118)\r"]
+[4.167177600860593, "o", "Resolving deltas:  16% (19/118)\r"]
+[4.1672281455993625, "o", "Resolving deltas:  17% (21/118)\r"]
+[4.167284889221189, "o", "Resolving deltas:  18% (22/118)\r"]
+[4.167323513031003, "o", "Resolving deltas:  19% (23/118)\r"]
+[4.167377872467038, "o", "Resolving deltas:  20% (24/118)\r"]
+[4.16741983413696, "o", "Resolving deltas:  21% (25/118)\r"]
+[4.167460842132566, "o", "Resolving deltas:  22% (26/118)\r"]
+[4.167517108917234, "o", "Resolving deltas:  23% (28/118)\r"]
+[4.167560977935788, "o", "Resolving deltas:  24% (29/118)\r"]
+[4.167614145278928, "o", "Resolving deltas:  25% (30/118)\r"]
+[4.167680187225339, "o", "Resolving deltas:  26% (31/118)\r"]
+[4.167722864150998, "o", "Resolving deltas:  27% (32/118)\r"]
+[4.167774839401242, "o", "Resolving deltas:  28% (34/118)\r"]
+[4.167832536697385, "o", "Resolving deltas:  29% (35/118)\r"]
+[4.167886180877683, "o", "Resolving deltas:  30% (36/118)\r"]
+[4.167931718826291, "o", "Resolving deltas:  31% (37/118)\r"]
+[4.167971534729001, "o", "Resolving deltas:  32% (38/118)\r"]
+[4.168016119003293, "o", "Resolving deltas:  33% (39/118)\r"]
+[4.168065471649167, "o", "Resolving deltas:  34% (41/118)\r"]
+[4.168110532760617, "o", "Resolving deltas:  35% (42/118)\r"]
+[4.168149871826169, "o", "Resolving deltas:  36% (43/118)\r"]
+[4.168194456100461, "o", "Resolving deltas:  37% (44/118)\r"]
+[4.168243093490598, "o", "Resolving deltas:  38% (45/118)\r"]
+[4.168287916183469, "o", "Resolving deltas:  39% (47/118)\r"]
+[4.168336553573606, "o", "Resolving deltas:  40% (48/118)\r"]
+[4.168375654220578, "o", "Resolving deltas:  41% (49/118)\r"]
+[4.168414278030393, "o", "Resolving deltas:  42% (50/118)\r"]
+[4.168459100723264, "o", "Resolving deltas:  43% (51/118)\r"]
+[4.168503923416135, "o", "Resolving deltas:  44% (52/118)\r"]
+[4.168573541641233, "o", "Resolving deltas:  45% (54/118)\r"]
+[4.168645544052121, "o", "Resolving deltas:  46% (55/118)\r"]
+[4.168686790466306, "o", "Resolving deltas:  47% (56/118)\r"]
+[4.168732328414914, "o", "Resolving deltas:  48% (57/118)\r"]
+[4.168774766921994, "o", "Resolving deltas:  49% (58/118)\r"]
+[4.168812913894651, "o", "Resolving deltas:  50% (59/118)\r"]
+[4.168867750167844, "o", "Resolving deltas:  51% (61/118)\r"]
+[4.168907089233396, "o", "Resolving deltas:  52% (62/118)\r"]
+[4.168952150344846, "o", "Resolving deltas:  53% (63/118)\r"]
+[4.168991489410398, "o", "Resolving deltas:  54% (64/118)\r"]
+[4.169036312103269, "o", "Resolving deltas:  55% (65/118)\r"]
+[4.169094963073728, "o", "Resolving deltas:  56% (67/118)\r"]
+[4.169140739440915, "o", "Resolving deltas:  57% (68/118)\r"]
+[4.169179840087888, "o", "Resolving deltas:  58% (69/118)\r"]
+[4.169225139617917, "o", "Resolving deltas:  59% (70/118)\r"]
+[4.169272346496579, "o", "Resolving deltas:  60% (71/118)\r"]
+[4.169317646026609, "o", "Resolving deltas:  61% (72/118)\r"]
+[4.169367237091062, "o", "Resolving deltas:  62% (74/118)\r"]
+[4.169406099319455, "o", "Resolving deltas:  63% (75/118)\r"]
+[4.169449729919431, "o", "Resolving deltas:  64% (76/118)\r"]
+[4.169500036239621, "o", "Resolving deltas:  65% (77/118)\r"]
+[4.169540805816648, "o", "Resolving deltas:  66% (78/118)\r"]
+[4.169660491943357, "o", "Resolving deltas:  67% (80/118)\r"]
+[4.169696493148801, "o", "Resolving deltas:  68% (81/118)\r"]
+[4.1697305870056125, "o", "Resolving deltas:  69% (82/118)\r"]
+[4.169793767929074, "o", "Resolving deltas:  70% (83/118)\r"]
+[4.169838113784787, "o", "Resolving deltas:  71% (84/118)\r"]
+[4.169889135360715, "o", "Resolving deltas:  72% (85/118)\r"]
+[4.169943971633908, "o", "Resolving deltas:  73% (87/118)\r"]
+[4.169979257583615, "o", "Resolving deltas:  74% (88/118)\r"]
+[4.170014305114743, "o", "Resolving deltas:  75% (89/118)\r"]
+[4.17005769729614, "o", "Resolving deltas:  76% (90/118)\r"]
+[4.170139474868772, "o", "Resolving deltas:  77% (91/118)\r"]
+[4.170190019607541, "o", "Resolving deltas:  78% (93/118)\r"]
+[4.170224590301511, "o", "Resolving deltas:  79% (94/118)\r"]
+[4.17026988983154, "o", "Resolving deltas:  80% (95/118)\r"]
+[4.170308752059934, "o", "Resolving deltas:  81% (96/118)\r"]
+[4.1703433227539035, "o", "Resolving deltas:  82% (97/118)\r"]
+[4.170377655029294, "o", "Resolving deltas:  83% (98/118)\r"]
+[4.170421524047849, "o", "Resolving deltas:  84% (100/118)\r"]
+[4.170460863113401, "o", "Resolving deltas:  85% (101/118)\r"]
+[4.170495672225949, "o", "Resolving deltas:  86% (102/118)\r"]
+[4.170535964965818, "o", "Resolving deltas:  87% (103/118)\r"]
+[4.170580787658689, "o", "Resolving deltas:  88% (104/118)\r"]
+[4.170700950622556, "o", "Resolving deltas:  89% (106/118)\r"]
+[4.170752687454221, "o", "Resolving deltas:  90% (107/118)\r"]
+[4.170789880752561, "o", "Resolving deltas:  91% (108/118)\r"]
+[4.170839233398435, "o", "Resolving deltas:  92% (109/118)\r"]
+[4.170891208648679, "o", "Resolving deltas:  93% (110/118)\r"]
+[4.170934362411496, "o", "Resolving deltas:  94% (111/118)\r"]
+[4.170980615615842, "o", "Resolving deltas:  95% (113/118)\r"]
+[4.171029729843137, "o", "Resolving deltas:  96% (114/118)\r"]
+[4.171079082489011, "o", "Resolving deltas:  97% (115/118)\r"]
+[4.1711367797851535, "o", "Resolving deltas:  98% (116/118)\r"]
+[4.171182556152341, "o", "Resolving deltas:  99% (117/118)\r"]
+[4.171246929168698, "o", "Resolving deltas: 100% (118/118)\r"]
+[4.171540184020993, "o", "Resolving deltas: 100% (118/118), done.\r\n"]
+[4.201540184020994, "o", "\u001b[1m"]
+[4.231540184020994, "o", "\u001b[36m"]
+[4.261540184020994, "o", "\u001b[91m"]
+[4.291540184020994, "o", "$"]
+[4.321540184020995, "o", " "]
+[4.351540184020995, "o", "\u001b[0m"]
+[11.03, "o", "\u001b[H"]
+[11.059999999999999, "o", "\u001b[J"]
+[11.089999999999998, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Ingest the initial data (in CSV) from this branch of the project."]
+[11.119999999999997, "o", "\r\n"]
+[11.149999999999997, "o", "$"]
+[11.179999999999996, "o", " "]
+[11.209999999999996, "o", "s"]
+[11.239999999999995, "o", "g"]
+[11.269999999999994, "o", "r"]
+[11.299999999999994, "o", " "]
+[11.329999999999993, "o", "i"]
+[11.359999999999992, "o", "n"]
+[11.389999999999992, "o", "i"]
+[11.419999999999991, "o", "t"]
+[11.44999999999999, "o", " "]
+[11.47999999999999, "o", "r"]
+[11.50999999999999, "o", "a"]
+[11.539999999999988, "o", "w"]
+[11.569999999999988, "o", "_"]
+[11.599999999999987, "o", "j"]
+[11.629999999999987, "o", "a"]
+[11.659999999999986, "o", "f"]
+[11.689999999999985, "o", "f"]
+[11.719999999999985, "o", "l"]
+[11.749999999999984, "o", "e"]
+[11.779999999999983, "o", "_"]
+[11.809999999999983, "o", "s"]
+[11.839999999999982, "o", "h"]
+[11.869999999999981, "o", "o"]
+[11.89999999999998, "o", "p"]
+[11.92999999999998, "o", "\r\n"]
+[11.95999999999998, "o", "$"]
+[11.989999999999979, "o", " "]
+[12.019999999999978, "o", "s"]
+[12.049999999999978, "o", "g"]
+[12.079999999999977, "o", "r"]
+[12.109999999999976, "o", " "]
+[12.139999999999976, "o", "c"]
+[12.169999999999975, "o", "s"]
+[12.199999999999974, "o", "v"]
+[12.229999999999974, "o", " "]
+[12.259999999999973, "o", "i"]
+[12.289999999999973, "o", "m"]
+[12.319999999999972, "o", "p"]
+[12.349999999999971, "o", "o"]
+[12.37999999999997, "o", "r"]
+[12.40999999999997, "o", "t"]
+[12.43999999999997, "o", " "]
+[12.469999999999969, "o", "-"]
+[12.499999999999968, "o", "f"]
+[12.529999999999967, "o", " "]
+[12.559999999999967, "o", "j"]
+[12.589999999999966, "o", "a"]
+[12.619999999999965, "o", "f"]
+[12.649999999999965, "o", "f"]
+[12.679999999999964, "o", "l"]
+[12.709999999999964, "o", "e"]
+[12.739999999999963, "o", "_"]
+[12.769999999999962, "o", "s"]
+[12.799999999999962, "o", "h"]
+[12.829999999999961, "o", "o"]
+[12.85999999999996, "o", "p"]
+[12.88999999999996, "o", "/"]
+[12.919999999999959, "o", "d"]
+[12.949999999999958, "o", "a"]
+[12.979999999999958, "o", "t"]
+[13.009999999999957, "o", "a"]
+[13.039999999999957, "o", "/"]
+[13.069999999999956, "o", "r"]
+[13.099999999999955, "o", "a"]
+[13.129999999999955, "o", "w"]
+[13.159999999999954, "o", "_"]
+[13.189999999999953, "o", "c"]
+[13.219999999999953, "o", "u"]
+[13.249999999999952, "o", "s"]
+[13.279999999999951, "o", "t"]
+[13.30999999999995, "o", "o"]
+[13.33999999999995, "o", "m"]
+[13.36999999999995, "o", "e"]
+[13.399999999999949, "o", "r"]
+[13.429999999999948, "o", "s"]
+[13.459999999999948, "o", "."]
+[13.489999999999947, "o", "c"]
+[13.519999999999946, "o", "s"]
+[13.549999999999946, "o", "v"]
+[13.579999999999945, "o", " "]
+[13.609999999999944, "o", "-"]
+[13.639999999999944, "o", "k"]
+[13.669999999999943, "o", " "]
+[13.699999999999942, "o", "i"]
+[13.729999999999942, "o", "d"]
+[13.759999999999941, "o", " "]
+[13.78999999999994, "o", "r"]
+[13.81999999999994, "o", "a"]
+[13.84999999999994, "o", "w"]
+[13.879999999999939, "o", "_"]
+[13.909999999999938, "o", "j"]
+[13.939999999999937, "o", "a"]
+[13.969999999999937, "o", "f"]
+[13.999999999999936, "o", "f"]
+[14.029999999999935, "o", "l"]
+[14.059999999999935, "o", "e"]
+[14.089999999999934, "o", "_"]
+[14.119999999999933, "o", "s"]
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+[81.00409251213146, "o", "jaffle_shop:\r\n  target: splitgraph\r\n  outputs:\r\n    splitgraph:\r\n      type: postgres\r\n      host: localhost\r\n      user: sgr\r\n      pass: supersecure\r\n      port: 5432\r\n      dbname: splitgraph\r\n      # The final schema that dbt writes to is a combination of this profile schema\r\n      # and the schema specified in the model.\r\n      schema: \"dbt_jaffle\"\r\n      threads: 4\r\n"]
+[82.00409251213146, "o", "Running with dbt=0.18.1\r\n"]
+[82.01206260681225, "o", "dbt version: 0.18.1\r\n"]
+[82.0120745277412, "o", "python version: 3.7.9\r\npython path: /opt/hostedtoolcache/Python/3.7.9/x64/bin/python\r\nos info: Linux-5.4.0-1031-azure-x86_64-with-debian-buster-sid\r\nUsing profiles.yml file at .dbt/profiles.yml\r\nUsing dbt_project.yml file at /home/runner/work/splitgraph/splitgraph/examples/dbt/jaffle_shop/dbt_project.yml\r\n\r\n"]
+[82.09369188308789, "o", "Configuration:\r\n  profiles.yml file [\u001b[32mOK found and valid\u001b[0m]\r\n  dbt_project.yml file [\u001b[32mOK found and valid\u001b[0m]\r\n\r\n"]
+[82.09370285034252, "o", "Required dependencies:\r\n"]
+[82.10058742523266, "o", " - git [\u001b[32mOK found\u001b[0m]\r\n\r\n"]
+[82.10059600830151, "o", "Connection:\r\n"]
+[82.10099440574719, "o", "  host: localhost\r\n  port: 5432\r\n  user: sgr\r\n  database: splitgraph\r\n  schema: dbt_jaffle\r\n  search_path: None\r\n  keepalives_idle: 0\r\n  sslmode: None\r\n"]
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+[82.11191516876293, "o", "\r\n"]
+[82.11232524871899, "o", "\r\n"]
+[82.38455372810436, "o", "\u001b[0m"]
+[82.92662435531689, "o", "Initialized empty repository dbt_jaffle\r\n"]
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+[103.87505072593756, "o", "Running with dbt=0.18.1\r\n"]
+[104.318863573075, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n\r\n"]
+[105.30614751815862, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 138 macros, 0 operations, 0 seed files, 3 sources\r\n"]
+[105.30899781227178, "o", "\r\n"]
+[105.64856285095281, "o", "10:37:09 | Concurrency: 4 threads (target='splitgraph')"]
+[105.64861077308721, "o", "\r\n"]
+[105.64924615860052, "o", "10:37:09 | "]
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+[105.65732378006048, "o", "10:37:09 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]\r\n"]
+[105.65887373924322, "o", "10:37:09 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]\r\n"]
+[105.65918797493048, "o", "10:37:09 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]"]
+[105.6592173004157, "o", "\r\n"]
+[105.66494363784857, "o", "10:37:09 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]"]
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+[105.91009134292669, "o", "10:37:10 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.24s]"]
+[105.91013878822393, "o", "\r\n"]
+[105.91170615196295, "o", "10:37:10 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.24s]"]
+[105.91173881530828, "o", "\r\n"]
+[105.9239730262763, "o", "10:37:10 | 5 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]\r\n"]
+[105.93332046508856, "o", "10:37:10 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.25s]"]
+[105.93336719513006, "o", "\r\n"]
+[105.9462172412879, "o", "10:37:10 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.27s]"]
+[105.94626325607366, "o", "\r\n"]
+[105.96821898460455, "o", "10:37:10 | 6 of 9 START table model dbt_jaffle.customer_payments................ [RUN]"]
+[105.96953481674261, "o", "\r\n"]
+[105.97323936462469, "o", "10:37:10 | 7 of 9 START table model dbt_jaffle.order_payments................... [RUN]\r\n"]
+[106.07225936889715, "o", "10:37:10 | 5 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.15s]"]
+[106.07246273994512, "o", "\r\n"]
+[106.08274978637762, "o", "10:37:10 | 7 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.10s]"]
+[106.08279246330328, "o", "\r\n"]
+[106.09054512023992, "o", "10:37:10 | 8 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]"]
+[106.09058398246832, "o", "\r\n"]
+[106.10994404792852, "o", "10:37:10 | 6 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.13s]"]
+[106.10999197006292, "o", "\r\n"]
+[106.11476034164495, "o", "10:37:10 | 9 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]"]
+[106.11479777336187, "o", "\r\n"]
+[106.19991940498419, "o", "10:37:10 | 8 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.10s]\r\n"]
+[106.20307106018133, "o", "10:37:10 | 9 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.08s]\r\n"]
+[106.2708079242713, "o", "10:37:10 | \r\n"]
+[106.27087420463629, "o", "10:37:10 | Finished running 4 view models, 5 table models in 0.96s.\r\n"]
+[106.30337089538641, "o", "\r\n"]
+[106.30343646049566, "o", "\u001b[32mCompleted successfully\u001b[0m\r\n"]
+[106.30356735229559, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
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+[125.39801349639963, "o", "Committing dbt_jaffle...\r\n"]
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+[125.41539182663034, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__customers is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[125.41649618148874, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_stripe__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
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+[125.50572957992624, "o", "Processing table order_payments\r\n"]
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+[140.0071938419349, "o", "Checked out raw_jaffle_shop:2f108e9d5e25.\r\n"]
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+[141.43773988723825, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n\r\n"]
+[142.3942160987861, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 138 macros, 0 operations, 0 seed files, 3 sources\r\n"]
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+[142.84388355255197, "o", "10:37:16 | Concurrency: 4 threads (target='splitgraph')\r\n"]
+[142.84395197868417, "o", "10:37:16 | \r\n"]
+[142.8506210231788, "o", "10:37:16 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]"]
+[142.85064748764108, "o", "\r\n"]
+[142.85376671791147, "o", "10:37:16 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]"]
+[142.85378555297922, "o", "\r\n"]
+[142.85418919563364, "o", "10:37:16 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]"]
+[142.85421494484018, "o", "\r\n"]
+[142.85513857841562, "o", "10:37:16 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]"]
+[142.85516027450632, "o", "\r\n"]
+[143.1538482093818, "o", "10:37:17 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.29s]"]
+[143.15386799812387, "o", "\r\n"]
+[143.15411547660898, "o", "10:37:17 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.30s]"]
+[143.15412858963083, "o", "\r\n"]
+[143.15567687988352, "o", "10:37:17 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.29s]"]
+[143.155714550019, "o", "\r\n"]
+[143.15901903152536, "o", "10:37:17 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.30s]"]
+[143.15906123161386, "o", "\r\n"]
+[143.16049627304147, "o", "10:37:17 | 5 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]"]
+[143.16053442001413, "o", "\r\n"]
+[143.16250685691904, "o", "10:37:17 | 7 of 9 START table model dbt_jaffle.order_payments................... [RUN]"]
+[143.1625359439857, "o", "\r\n"]
+[143.168329992295, "o", "10:37:17 | 6 of 9 START table model dbt_jaffle.customer_payments................ [RUN]"]
+[143.1683619403846, "o", "\r\n"]
+[143.33038763046335, "o", "10:37:17 | 5 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.17s]"]
+[143.330439367295, "o", "\r\n"]
+[143.34035090446542, "o", "10:37:17 | 7 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.17s]"]
+[143.34041074752878, "o", "\r\n"]
+[143.34709338188242, "o", "10:37:17 | 8 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]"]
+[143.34711889267038, "o", "\r\n"]
+[143.3694816017158, "o", "10:37:17 | 6 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.18s]"]
+[143.36953095436166, "o", "\r\n"]
+[143.3843250656135, "o", "10:37:17 | 9 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]"]
+[143.38485459327768, "o", "\r\n"]
+[143.46217135429453, "o", "10:37:17 | 8 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.11s]\r\n"]
+[143.48140815734934, "o", "10:37:17 | 9 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.09s]\r\n"]
+[143.52686051368784, "o", "10:37:17 | \r\n"]
+[143.52710560798715, "o", "10:37:17 | Finished running 4 view models, 5 table models in 1.13s.\r\n"]
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+[143.55971292495798, "o", "\u001b[32mCompleted successfully\u001b[0m\r\n"]
+[143.5598392868049, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
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+[157.76201731681883, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Create an image from the new data."]
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+[160.1645502376563, "o", "Committing dbt_jaffle...\r\n"]
+[160.18697541236943, "o", "Processing table fct_orders\r\n"]
+[160.26421683311528, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[160.26554363250798, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__orders is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[160.2667264270789, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__customers is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[160.27437060356206, "o", "Processing table order_payments\r\n"]
+[160.28035371780462, "o", "Object o87940f703edacc7113c37ae83a6abe6293f48cbb940171ef03875a066b0c5c already exists, skipping\r\n"]
+[160.28997557640142, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_stripe__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[160.29726188659734, "o", "Processing table customer_orders\r\n"]
+[160.30281775474614, "o", "Object o0fafb9e76c06e221af3aa558b0a751b176857a09b2d75ca00826becbd12ef5 already exists, skipping\r\n"]
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+[160.32274573326177, "o", "Object o47a7af4dc6d74898da55e6c760eac4d702db25633cfab4e28e6df77cf00098 already exists, skipping\r\n"]
+[160.33587735176152, "o", "Processing table dim_customers\r\n"]
+[160.34174101829595, "o", "Object o9656926ef986d89e326952a43869eaf3dc59905ff22aba22cd3dd67a834dc5 already exists, skipping\r\n"]
+[160.36905305862493, "o", "Committed dbt_jaffle as 67d9e71d4cd0.\r\n"]
+[160.87957017898626, "o", "Tagged dbt_jaffle:67d9e71d4cd0ffb2021f9937b22bd536f7142e143f295f6d8c31a69071f25bed with asof_20180410.\r\n"]
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+[167.76201731681883, "o", "\u001b[1m\u001b[36m\u001b[91m$ # We now have two versions of the source and the target dataset."]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.4/import-from-csv.cast b/content/casts/versioned/archive/v0.2.4/import-from-csv.cast
new file mode 100644
index 00000000..d15c751b
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/import-from-csv.cast
@@ -0,0 +1,609 @@
+{"version": 2, "width": 100, "height": 45, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1607423746, "metadata": {"tss": [{"h": "Inspect the data file", "ts": 0.06}, {"h": "Initialize the repository", "ts": 6.5028796195983904}, {"h": "Ingest the data into a new table (wrapper around COPY FROM STDIN)", "ts": 27.502879619598392}, {"h": "The data is now in a table but not committed as a Splitgraph image", "ts": 36.19287961959853}, {"h": "Create a new image and tag it", "ts": 44.07138710021994}, {"h": "Inspect the image", "ts": 52.53967310905486}, {"h": "Inspect the table", "ts": 59.53195523262059}, {"h": "Inspect object metadata", "ts": 79.03195523262059}]}}
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diff --git a/content/casts/versioned/archive/v0.2.4/import-from-mongo.cast b/content/casts/versioned/archive/v0.2.4/import-from-mongo.cast
new file mode 100644
index 00000000..30f5c3a1
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/import-from-mongo.cast
@@ -0,0 +1,658 @@
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+[48.381451425552626, "o", "Executing Splitfile mongo_import.splitfile with arguments {}\r\n"]
+[48.41164904594447, "o", "\u001b[1m\r\nStep 1/1 : FROM MOUNT mongo_fdw originro:originpass@mongo:27017 '{\"t...\u001b[0m\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.4/metadata.json b/content/casts/versioned/archive/v0.2.4/metadata.json
new file mode 100644
index 00000000..1c61dc6f
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.4",
+  "updated_at": "2021-01-26T14:47:51.810Z",
+  "release": {
+    "id": 34976262,
+    "tag_name": "v0.2.4",
+    "target_commitish": "87608746ae196f598a0601f838be338175041027",
+    "created_at": "2020-12-08T10:18:35Z",
+    "published_at": "2020-12-08T10:49:18Z",
+    "assets": [
+      {
+        "id": 29291204,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/29291204",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-12-08T10:46:03Z",
+        "updated_at": "2020-12-08T10:46:05Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.4/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/casts/versioned/archive/v0.2.4/pg-replication.cast b/content/casts/versioned/archive/v0.2.4/pg-replication.cast
new file mode 100644
index 00000000..cecd1400
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/pg-replication.cast
@@ -0,0 +1,1402 @@
+{"version": 2, "width": 100, "height": 21, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1607423846, "metadata": {"tss": [{"h": "The configuration file for sgr contains credentials for the", "ts": 0.06}, {"h": "The origin database has been set up with a couple of tables.", "ts": 10.059999999999999}, {"h": "Create a publication on the origin database", "ts": 20.01862792968742}, {"h": "Create a schema with the same name and same tables", "ts": 28.798627929687562}, {"h": "Set up replication from the origin database.", "ts": 38.79862792968756}, {"h": "Check the data on the engine", "ts": 49.73862792968779}, {"h": "Commit the data as an initial image", "ts": 58.57347854614297}, {"h": "Make a change on the origin database", "ts": 69.10530989646965}, {"h": "The change propagates to the subscriber and gets", "ts": 85.17530989647007}, {"h": "Committing creates a new image, snapshotting the state.", "ts": 92.16282800674539}]}}
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.4/postgrest.cast b/content/casts/versioned/archive/v0.2.4/postgrest.cast
new file mode 100644
index 00000000..5bba0d07
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/postgrest.cast
@@ -0,0 +1,1131 @@
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diff --git a/content/casts/versioned/archive/v0.2.4/push-to-other-engine.cast b/content/casts/versioned/archive/v0.2.4/push-to-other-engine.cast
new file mode 100644
index 00000000..bba37aa2
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/push-to-other-engine.cast
@@ -0,0 +1,921 @@
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.4/splitfiles.cast b/content/casts/versioned/archive/v0.2.4/splitfiles.cast
new file mode 100644
index 00000000..d4ef3764
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/splitfiles.cast
@@ -0,0 +1,1298 @@
+{"version": 2, "width": 100, "height": 31, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1607423978, "metadata": {"tss": [{"h": "Ingest the weather dataset at Raleigh-Durham Airport from the CSV example", "ts": 0.06}, {"h": "Inspect the Splitfile used to create a derivative image", "ts": 13.718407773971563}, {"h": "Run the Splitfile to build a new image", "ts": 21.718407773971567}, {"h": "Much like with Docker, the build result is cached, so running build again checks out the existing image.", "ts": 31.547124814987317}, {"h": "Inspect the new dataset", "ts": 39.61707334518454}, {"h": "Inspect the image's provenance (generated from its metadata)", "ts": 54.61707334518454}, {"h": "We can also see that a new image has been derived from demo/weather", "ts": 63.02434627532989}, {"h": "Now pretend there's been a revision to the source historical weather data", "ts": 69.79596488952672}, {"h": "Use the derivative image's provenance to rebuild it against the revised version", "ts": 82.96757637023987}, {"h": "Compare the two resultant datasets", "ts": 93.0037100887306}]}}
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.4/splitgraph-cloud.cast b/content/casts/versioned/archive/v0.2.4/splitgraph-cloud.cast
new file mode 100644
index 00000000..a4e77695
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/splitgraph-cloud.cast
@@ -0,0 +1,1340 @@
+{"version": 2, "width": 100, "height": 23, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1607423929, "metadata": {"tss": [{"h": "Make sure you are registered and logged into Splitgraph Cloud.", "ts": 0.06}, {"h": "Ingest the weather dataset at Raleigh-Durham Airport", "ts": 8.849999999999994}, {"h": "Push the dataset to Splitgraph", "ts": 21.90552362442004}, {"h": "Upload some dataset metadata as well.", "ts": 30.34294511795035}, {"h": "Perform a request against an automatically-generated", "ts": 41.34294511795035}, {"h": "sgr also has a shorthand to access the query API", "ts": 50.499810504913384}, {"h": "You can also run a query against the Splitgraph Data Delivery Network.", "ts": 59.4998105049135}, {"h": "The query API also supports running one-off Splitfile commands against a repository,", "ts": 70.6898105049137}, {"h": "Run another command against the new layer to join the two datasets", "ts": 80.20229077339222}, {"h": "Pull the dataset and check out the new image", "ts": 89.80491147041384}, {"h": "Inspect the generated data", "ts": 103.23316510200571}]}}
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+[89.83491147041384, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Pull the dataset and check out the new image"]
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+[91.54491147041391, "o", "\r\n"]
+[92.06350120544504, "o", "Gathering remote metadata...\r\n"]
+[93.06350120544504, "o", "Fetched metadata for 2 images, 5 tables, 2 objects and 2 tags.\r\n"]
+[93.61113842964242, "o", "Need to download 1 object (3.02 KiB), cache occupancy: 0.00 B/10.00 GiB\r\n"]
+[93.6648085975654, "o", "Fetching 1 object, total size 3.02 KiB\r\n"]
+[93.66857203483652, "o", "Getting download URLs from registry PostgresEngine data.splitgraph.com (ca446922b2844ed19f8e6c8b35edbe31@data.splitgraph.com:5432/sgregistry)...\r\n"]
+[94.66857203483652, "o", "\r  0%|                                                                                            | 0/1 [00:00<?, ?obj/s]"]
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+[95.87956961631845, "o", "Need to download 1 object (1.62 KiB), cache occupancy: 3.02 KiB/10.00 GiB\r\n"]
+[95.93316802024911, "o", "Fetching 1 object, total size 1.62 KiB\r\n"]
+[95.93323239326547, "o", "Getting download URLs from registry PostgresEngine data.splitgraph.com (ca446922b2844ed19f8e6c8b35edbe31@data.splitgraph.com:5432/sgregistry)...\r\n"]
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diff --git a/content/casts/versioned/archive/v0.2.4/us-election.cast b/content/casts/versioned/archive/v0.2.4/us-election.cast
new file mode 100644
index 00000000..9939e5c7
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.4/us-election.cast
@@ -0,0 +1,446 @@
+{"version": 2, "width": 100, "height": 57, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1607424004, "metadata": {"tss": [{"h": "This example will use Splitgraph to build a dataset that correlates, for every US county,", "ts": 0.06}, {"h": "Now, build the dataset: the Splitgraph engine will automatically download the required data", "ts": 28.060000000000002}, {"h": "Inspect the dataset metadata", "ts": 44.45107200622567}, {"h": "Get the data for New York County (FIPS 36061)", "ts": 61.95107200622567}, {"h": "Do a quick analysis of the dataset.", "ts": 71.53032432556176}]}}
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+[0.09, "o", "\u001b[1m\u001b[36m\u001b[91m$ # This example will use Splitgraph to build a dataset that correlates, for every US county,"]
+[0.12, "o", "\r\n"]
+[0.15, "o", "$ # its voting pattern in the 2016 US Presidential election with the amount of\r\n"]
+[0.18, "o", "$ # Qualified Opportunity Zone areas in it.\r\n"]
+[0.21, "o", "$ #\r\n"]
+[0.24, "o", "$ # First, examine the Splitfile used to build the dataset.\r\n"]
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+[1.321279592514039, "o", "# See the README for data sources.\r\n\r\n# Calculate the number of Census tracts in each county and fraction of QOZ-eligible tracts.\r\n\r\nSQL {\r\n    CREATE TABLE qoz_tract_fraction AS\r\n        WITH county_tracts AS (SELECT\r\n                COUNT(*) AS total_tract_count,\r\n                substring(lpad(\"TractId\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/census:latest\".acs2017_census_tract_data\r\n            GROUP BY county_id\r\n        ), qoz_tracts AS (SELECT\r\n                COUNT(*"]
+[1.321288890838624, "o", ") AS qoz_tract_count,\r\n                substring(lpad(\"Census Tract Number\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/qoz:latest\".qoz\r\n            GROUP BY county_id\r\n        )\r\n    SELECT\r\n        c.county_id AS county_id,\r\n        COALESCE(q.qoz_tract_count::numeric, 0.0) / total_tract_count AS qoz_tract_fraction\r\n    FROM qoz_tracts q JOIN county_tracts c\r\n        ON q.county_id = c.county_id\r\n}\r\n"]
+[1.3213167858123789, "o", "\r\n# Summarize the Trump/Clinton vote fraction in each county.\r\n\r\nFROM splitgraph/2016_election IMPORT {\r\n    SELECT lpad(county_fips::TEXT, 5, '0') AS county_id,\r\n        SUM(CASE WHEN candidate_normalized = 'trump' THEN votes ELSE 0 END) / SUM(votes)\r\n            AS trump_vote_fraction,\r\n        SUM(CASE WHEN candidate_normalized = 'clinton' THEN votes ELSE 0 END) / SUM(votes)\r\n            AS clinton_vote_fraction,\r\n    SUM(votes) AS total_votes\r\n    FROM precinct_results\r\n    GROUP BY county_id\r\n} AS vote"]
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+[30.552268781662065, "o", "Executing Splitfile qoz_vote_fraction.splitfile with arguments {}\r\n"]
+[30.586913146972734, "o", "\u001b[1m\r\nStep 1/3 : SQL {    CREATE TABLE qoz_tract_fraction AS        WITH...\u001b[0m\r\n"]
+[30.60883645057686, "o", "Resolving repository splitgraph/census\r\n"]
+[31.60883645057686, "o", "Gathering remote metadata...\r\n"]
+[32.60883645057686, "o", "Fetched metadata for 2 images, 1 table, 1 object and 0 tags.\r\n"]
+[32.61807040214546, "o", "Resolving repository splitgraph/qoz\r\n"]
+[33.562970914840776, "o", "Gathering remote metadata...\r\n"]
+[34.562970914840776, "o", "Fetched metadata for 2 images, 1 table, 1 object and 0 tags.\r\n"]
+[34.581286706924516, "o", "Executing SQL...\r\n"]
+[35.581286706924516, "o", "Committing qoz_vote_fraction...\r\n"]
+[35.60846570968636, "o", "Processing table qoz_tract_fraction\r\n"]
+[35.719096221923905, "o", " ---> 4a832e4a1b62\r\n"]
+[35.71945289611824, "o", "\u001b[1m\r\nStep 2/3 : FROM splitgraph/2016_election IMPORT {    SELECT lpad(co...\u001b[0m\r\n"]
+[35.72004417419441, "o", "Resolving repository splitgraph/2016_election\r\n"]
+[36.65917614936836, "o", "Gathering remote metadata...\r\n"]
+[37.65917614936836, "o", "Fetched metadata for 1 image, 1 table, 20 objects and 1 tag.\r\n"]
+[37.67580298423775, "o", "Importing 1 table from splitgraph/2016_election:3835145ada3f into qoz_vote_fraction\r\n"]
+[38.67580298423775, "o", "Processing table sg_tmp_0073b722f71b117d5bba3dc181bc8b60\r\n"]
+[39.013856449127275, "o", " ---> 105f0cc16f07\r\n"]
+[39.01834444046028, "o", "\u001b[1m\r\nStep 3/3 : SQL { CREATE TABLE qoz_vote_fraction AS    SELECT      ...\u001b[0m\r\n"]
+[39.0300207519532, "o", "Executing SQL...\r\n"]
+[39.04873780250557, "o", "Committing qoz_vote_fraction...\r\n"]
+[39.083677568435746, "o", "Processing table qoz_vote_fraction\r\n"]
+[39.20766786575325, "o", " ---> 2fd53f55d05e\r\n"]
+[39.21107200622566, "o", "Successfully built qoz_vote_fraction:2fd53f55d05e.\r\n"]
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+[72.76355585098295, "o", "import scipy.stats as ss\r\n\r\nfrom splitgraph.core.repository import Repository\r\nfrom splitgraph.ingestion.pandas import sql_to_df\r\n\r\n# Load the dataset we created into Pandas\r\nimage = Repository(\"\", \"qoz_vote_fraction\").images[\"latest\"]\r\ndf = sql_to_df(\"SELECT * FROM qoz_vote_fraction\", image=image, use_lq=True)\r\nprint(df)\r\n\r\n# Is there a correlation between the Trump vote fraction and the fraction of\r\n# QOZ-qualified tracts in every county?\r\nprint(ss.linregress(df[\"trump_vote_fraction\"], df[\"qoz_tract_fract"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.5/bloom-filter.cast b/content/casts/versioned/archive/v0.2.5/bloom-filter.cast
new file mode 100644
index 00000000..535ebfb7
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/bloom-filter.cast
@@ -0,0 +1,958 @@
+{"version": 2, "width": 100, "height": 56, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574789, "metadata": {"tss": [{"h": "This example will use the 2016 US presidential election dataset", "ts": 0.06}, {"h": "The table is sorted by voting precinct and so queries that filter by that", "ts": 8.565485591888425}, {"h": "Currently we have no fragments in cache. Let's run this query and check the cache again", "ts": 18.48469600677481}, {"h": "Since default indexing in Splitgraph is done by min-max values for every column", "ts": 30.20794162750255}, {"h": "Let's download the whole dataset and add a bloom filter index on county_name", "ts": 40.48246306419401}, {"h": "Check the metadata of a new object to see details about the bloom filter structure", "ts": 72.1258498668675}, {"h": "Plan the query again: because the bloom filter can drop most fragments -", "ts": 99.6258498668675}]}}
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+[0.15, "o", "$ # to show off how indexing with a bloom filter can improve query performance.\r\n"]
+[0.18, "o", "$ #\r\n"]
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+[44.415392074585384, "o", "Reindexing table splitgraph/2016_election:3835145ada3f07cad99087d1b1071122d58c48783cbfe4694c101d35651fba90/precinct_results\r\n"]
+[44.45578280448956, "o", "Need to download 20 objects (20.19 MiB), cache occupancy: 6.63 MiB/10.00 GiB\r\n"]
+[44.50939050674481, "o", "Fetching 15 objects, total size 20.19 MiB\r\n"]
+[44.511981163025325, "o", "Getting download URLs from registry PostgresEngine data.splitgraph.com (ca446922b2844ed19f8e6c8b35edbe31@data.splitgraph.com:5432/sgregistry)...\r\n"]
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+[46.51228729248089, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:30,  2.19s/obj, object=o07f95f994...]"]
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+[66.88584986686749, "o", "Reindexed 20 objects\r\n"]
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+[72.1558498668675, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Check the metadata of a new object to see details about the bloom filter structure"]
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+[74.773693876267, "o", "Object ID: o0671aabeb9d4ce362515624616a5a202503db99d7a83007bfdf63fd71b91af\r\n\r\n"]
+[74.77371509552054, "o", "Namespace: splitgraph\r\nFormat: FRAG\r\nSize: 1.38 MiB\r\nCreated: 2019-10-10 15:53:46.833226\r\nRows inserted: 100000\r\nInsertion hash: 2d8728d89cdec8d2d5dcff5ddce5e984911264f44fada0e4c62affda483ecd07\r\nRows deleted: 0\r\nDeletion hash: 0000000000000000000000000000000000000000000000000000000000000000\r\nColumn index:\r\n  id: [900001, 1000000]\r\n  mode: ['absentee', 'total']\r\n  year: [2016, 2016]\r\n  party: ['', 'unaffiliated']\r\n  stage: ['gen', 'gen']\r\n  state: ['Maryland', 'Michigan']\r\n  votes: [0, 146278]\r\n  office: ['U"]
+[74.77372272491507, "o", "S President', 'US President']\r\n  district: ['', 'statewide']\r\n  precinct: ['1', 'Yellow Springs Elementary School|pplaceid: 14119|pollid: 4860|electdist: 21|prec: 4']\r\n  candidate: ['', 'William Feegbeh']\r\n  county_lat: ['38.07445', '44.682535']\r\n  state_fips: [24, 26]\r\n  county_ansi: [592947, 1714670]\r\n  county_fips: [24009, 26001]\r\n  county_long: ['-82.834078', '-70.14191']\r\n  county_name: ['Alcona County', 'Worcester County']\r\n  state_icpsr: [3, 52]\r\n  jurisdiction: ['ALCONA', 'Yarmouth']\r\n  state_postal"]
+[74.77373321533256, "o", ": ['MA', 'MI']\r\n  candidate_fec: ['', 'P80005572']\r\n  candidate_full: [None, None]\r\n  candidate_last: [None, None]\r\n  candidate_first: [None, None]\r\n  candidate_icpsr: [None, None]\r\n  candidate_party: [None, None]\r\n  candidate_google: [None, None]\r\n  candidate_middle: [None, None]\r\n  candidate_suffix: [None, None]\r\n  candidate_fec_name: ['', 'WILLIAMS, ELAINE WHIGHAM']\r\n  candidate_govtrack: [None, None]\r\n  candidate_maplight: [None, None]\r\n  candidate_nickname: [None, None]\r\n  candidate_wikidata: [None, No"]
+[74.77620180130057, "o", "ne]\r\n  candidate_normalized: ['', 'wysinger']\r\n  candidate_opensecrets: [None, None]\r\nBloom index: \r\n  county_name: k=7, size 56.00 B, approx. 34 item(s), false positive probability 1.0%\r\n\r\n"]
+[74.79821165084891, "o", "Location: cached locally\r\n"]
+[74.79822524070792, "o", "Original location: o0671aabeb9d4ce362515624616a5a202503db99d7a83007bfdf63fd71b91af (S3)\r\n"]
+[74.82822524070792, "o", "\u001b[1m"]
+[74.85822524070792, "o", "\u001b[36m"]
+[74.88822524070792, "o", "\u001b[91m"]
+[74.91822524070793, "o", "$"]
+[74.94822524070793, "o", " "]
+[74.97822524070793, "o", "\u001b[0m"]
+[99.5958498668675, "o", "\u001b[H"]
+[99.6258498668675, "o", "\u001b[J"]
+[99.6558498668675, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Plan the query again: because the bloom filter can drop most fragments - "]
+[99.6858498668675, "o", "\r\n"]
+[99.7158498668675, "o", "$ # This is an improvement of about 25MiB at the cost of a few KB of index data.\r\n"]
+[99.7458498668675, "o", "$"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.5/dbt.cast b/content/casts/versioned/archive/v0.2.5/dbt.cast
new file mode 100644
index 00000000..023f6885
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/dbt.cast
@@ -0,0 +1,2193 @@
+{"version": 2, "width": 100, "height": 48, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574891, "metadata": {"tss": [{"h": "dbt must be installed for this to work (pip install dbt)", "ts": 0.06}, {"h": "Ingest the initial data (in CSV) from this branch of the project.", "ts": 10.059999999999999}, {"h": "Snapshot the initial data with Splitgraph.", "ts": 24.769887962341315}, {"h": "Inspect the original data", "ts": 33.861865072250495}, {"h": "The status column in the raw_orders table in the initial dataset can", "ts": 46.861865072250495}, {"h": "Commit this dataset and check out the original data", "ts": 57.58658721923861}, {"h": "Check out the 'serious' version of the dbt project that uses data from", "ts": 67.39622980117845}, {"h": "Check that dbt is set up to connect to the Splitgraph engine.", "ts": 74.3833854579931}, {"h": "Now run the dbt models.", "ts": 97.8833854579931}, {"h": "Take a look at the built dataset and commit it.", "ts": 118.3833854579931}, {"h": "Check out the new version of the raw dataset and run dbt against it as well.", "ts": 132.88338545799309}, {"h": "Create an image from the new data.", "ts": 154.38338545799309}, {"h": "We now have two versions of the source and the target dataset.", "ts": 164.38338545799309}, {"h": "Inspect the difference between the two datasets that dbt built.", "ts": 171.76114391326965}, {"h": "Run a sample query: how much in bank transfer refunds did we process?", "ts": 181.26114391326965}]}}
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+[3.90240256309509, "o", "Receiving objects:  94% (275/292)\r"]
+[3.9025234413146945, "o", "Receiving objects:  95% (278/292)\r"]
+[3.9026447963714572, "o", "Receiving objects:  96% (281/292)\r"]
+[3.9027768802642795, "o", "Receiving objects:  97% (284/292)\r"]
+[3.902902050018308, "o", "Receiving objects:  98% (287/292)\r"]
+[3.903027219772336, "o", "Receiving objects:  99% (290/292)\r"]
+[3.9031988811492893, "o", "Receiving objects: 100% (292/292)\r"]
+[3.9033266735076877, "o", "Receiving objects: 100% (292/292), 99.50 KiB | 11.05 MiB/s, done."]
+[3.9034434986114475, "o", "\r\n"]
+[3.903726263046262, "o", "Resolving deltas:   0% (0/130)\r"]
+[3.903841180801389, "o", "Resolving deltas:   1% (2/130)\r"]
+[3.90399209976196, "o", "Resolving deltas:   2% (3/130)\r"]
+[3.904139919281003, "o", "Resolving deltas:   3% (4/130)\r"]
+[3.904364986419675, "o", "Resolving deltas:   4% (6/130)\r"]
+[3.904517097473142, "o", "Resolving deltas:   5% (7/130)\r"]
+[3.9046668243408176, "o", "Resolving deltas:   6% (8/130)\r"]
+[3.9048237037658664, "o", "Resolving deltas:   7% (10/130)\r"]
+[3.9049622249603244, "o", "Resolving deltas:   8% (11/130)\r"]
+[3.905165834426877, "o", "Resolving deltas:   9% (12/130)\r"]
+[3.9053944778442355, "o", "Resolving deltas:  10% (13/130)\r"]
+[3.9054016304016086, "o", "Resolving deltas:  11% (15/130)\r"]
+[3.905425710678098, "o", "Resolving deltas:  12% (16/130)\r"]
+[3.9057676029205295, "o", "Resolving deltas:  13% (17/130)\r"]
+[3.9058498573303195, "o", "Resolving deltas:  14% (19/130)\r"]
+[3.905879421234128, "o", "Resolving deltas:  15% (20/130)\r"]
+[3.9059149456024143, "o", "Resolving deltas:  16% (21/130)\r"]
+[3.9059666824340793, "o", "Resolving deltas:  17% (23/130)\r"]
+[3.9060091209411594, "o", "Resolving deltas:  18% (24/130)\r"]
+[3.90604083061218, "o", "Resolving deltas:  19% (25/130)\r"]
+[3.906059904098508, "o", "Resolving deltas:  20% (26/130)\r"]
+[3.9060892295837375, "o", "Resolving deltas:  21% (28/130)\r"]
+[3.9061130714416477, "o", "Resolving deltas:  22% (29/130)\r"]
+[3.906137628555295, "o", "Resolving deltas:  23% (30/130)\r"]
+[3.906163377761838, "o", "Resolving deltas:  24% (32/130)\r"]
+[3.9061881732940646, "o", "Resolving deltas:  25% (33/130)\r"]
+[3.906208200454709, "o", "Resolving deltas:  26% (34/130)\r"]
+[3.9062425327301, "o", "Resolving deltas:  27% (36/130)\r"]
+[3.906262083053586, "o", "Resolving deltas:  28% (37/130)\r"]
+[3.9062823486328098, "o", "Resolving deltas:  29% (38/130)\r"]
+[3.9063166809082004, "o", "Resolving deltas:  30% (39/130)\r"]
+[3.9063405227661105, "o", "Resolving deltas:  31% (41/130)\r"]
+[3.9063591194152805, "o", "Resolving deltas:  32% (42/130)\r"]
+[3.906384153366086, "o", "Resolving deltas:  33% (43/130)\r"]
+[3.9064301681518527, "o", "Resolving deltas:  34% (45/130)\r"]
+[3.9064556789398166, "o", "Resolving deltas:  35% (46/130)\r"]
+[3.9064809513092014, "o", "Resolving deltas:  36% (47/130)\r"]
+[3.90651051521301, "o", "Resolving deltas:  37% (49/130)\r"]
+[3.9065303039550754, "o", "Resolving deltas:  38% (50/130)\r"]
+[3.90655557632446, "o", "Resolving deltas:  39% (51/130)\r"]
+[3.906578941345212, "o", "Resolving deltas:  40% (52/130)\r"]
+[3.9066127967834445, "o", "Resolving deltas:  41% (54/130)\r"]
+[3.906632823944089, "o", "Resolving deltas:  42% (55/130)\r"]
+[3.906663579940793, "o", "Resolving deltas:  43% (56/130)\r"]
+[3.9066952896118137, "o", "Resolving deltas:  44% (58/130)\r"]
+[3.9067160320281955, "o", "Resolving deltas:  45% (59/130)\r"]
+[3.9067377281188937, "o", "Resolving deltas:  46% (60/130)\r"]
+[3.9067742061614963, "o", "Resolving deltas:  47% (62/130)\r"]
+[3.90679447174072, "o", "Resolving deltas:  48% (63/130)\r"]
+[3.9068142604827854, "o", "Resolving deltas:  49% (64/130)\r"]
+[3.906839294433591, "o", "Resolving deltas:  50% (65/130)\r"]
+[3.9068681430816623, "o", "Resolving deltas:  51% (67/130)\r"]
+[3.906891269683835, "o", "Resolving deltas:  52% (68/130)\r"]
+[3.906909627914426, "o", "Resolving deltas:  53% (69/130)\r"]
+[3.9069394302368137, "o", "Resolving deltas:  54% (71/130)\r"]
+[3.9069644641876193, "o", "Resolving deltas:  55% (72/130)\r"]
+[3.9069906902313205, "o", "Resolving deltas:  56% (73/130)\r"]
+[3.907017631530759, "o", "Resolving deltas:  57% (75/130)\r"]
+[3.907040996551511, "o", "Resolving deltas:  58% (76/130)\r"]
+[3.907067222595212, "o", "Resolving deltas:  59% (77/130)\r"]
+[3.907086057662961, "o", "Resolving deltas:  60% (78/130)\r"]
+[3.9071311187744113, "o", "Resolving deltas:  61% (80/130)\r"]
+[3.907165451049802, "o", "Resolving deltas:  62% (81/130)\r"]
+[3.9071859550476047, "o", "Resolving deltas:  63% (82/130)\r"]
+[3.9072157573699924, "o", "Resolving deltas:  64% (84/130)\r"]
+[3.907240552902219, "o", "Resolving deltas:  65% (85/130)\r"]
+[3.9072648715972873, "o", "Resolving deltas:  66% (86/130)\r"]
+[3.907295150756833, "o", "Resolving deltas:  67% (88/130)\r"]
+[3.9073142242431613, "o", "Resolving deltas:  68% (89/130)\r"]
+[3.90734378814697, "o", "Resolving deltas:  69% (90/130)\r"]
+[3.90736500740051, "o", "Resolving deltas:  70% (91/130)\r"]
+[3.9074227046966525, "o", "Resolving deltas:  71% (93/130)\r"]
+[3.907447738647458, "o", "Resolving deltas:  72% (94/130)\r"]
+[3.90746848106384, "o", "Resolving deltas:  73% (95/130)\r"]
+[3.9074951839446994, "o", "Resolving deltas:  74% (97/130)\r"]
+[3.9075142574310275, "o", "Resolving deltas:  75% (98/130)\r"]
+[3.907536907196042, "o", "Resolving deltas:  76% (99/130)\r"]
+[3.907574338912961, "o", "Resolving deltas:  77% (101/130)\r"]
+[3.9075943660736057, "o", "Resolving deltas:  78% (102/130)\r"]
+[3.907613916397092, "o", "Resolving deltas:  79% (103/130)\r"]
+[3.907642049789426, "o", "Resolving deltas:  80% (104/130)\r"]
+[3.907714767456052, "o", "Resolving deltas:  81% (106/130)\r"]
+[3.907736225128171, "o", "Resolving deltas:  82% (107/130)\r"]
+[3.907754821777341, "o", "Resolving deltas:  83% (108/130)\r"]
+[3.9077905845642062, "o", "Resolving deltas:  84% (110/130)\r"]
+[3.9078103733062717, "o", "Resolving deltas:  85% (111/130)\r"]
+[3.9078292083740207, "o", "Resolving deltas:  86% (112/130)\r"]
+[3.9078568649291965, "o", "Resolving deltas:  87% (114/130)\r"]
+[3.9078802299499484, "o", "Resolving deltas:  88% (115/130)\r"]
+[3.9078993034362766, "o", "Resolving deltas:  89% (116/130)\r"]
+[3.907923383712766, "o", "Resolving deltas:  90% (117/130)\r"]
+[3.9080919456481906, "o", "Resolving deltas:  91% (119/130)\r"]
+[3.9081269931793186, "o", "Resolving deltas:  92% (120/130)\r"]
+[3.9081596565246555, "o", "Resolving deltas:  93% (121/130)\r"]
+[3.908212108612058, "o", "Resolving deltas:  94% (123/130)\r"]
+[3.908235950469968, "o", "Resolving deltas:  95% (124/130)\r"]
+[3.908256931304929, "o", "Resolving deltas:  96% (125/130)\r"]
+[3.9082838726043674, "o", "Resolving deltas:  97% (127/130)\r"]
+[3.9083034229278537, "o", "Resolving deltas:  98% (128/130)\r"]
+[3.9083313179016086, "o", "Resolving deltas:  99% (129/130)\r"]
+[3.9083589744567844, "o", "Resolving deltas: 100% (130/130)\r"]
+[3.9084397983551, "o", "Resolving deltas: 100% (130/130), done."]
+[3.9084505271911594, "o", "\r\n"]
+[3.938450527191159, "o", "\u001b[1m"]
+[3.968450527191159, "o", "\u001b[36m"]
+[3.998450527191159, "o", "\u001b[91m"]
+[4.028450527191159, "o", "$"]
+[4.058450527191159, "o", " "]
+[4.088450527191159, "o", "\u001b[0m"]
+[10.03, "o", "\u001b[H"]
+[10.059999999999999, "o", "\u001b[J"]
+[10.089999999999998, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Ingest the initial data (in CSV) from this branch of the project."]
+[10.119999999999997, "o", "\r\n"]
+[10.149999999999997, "o", "$"]
+[10.179999999999996, "o", " "]
+[10.209999999999996, "o", "s"]
+[10.239999999999995, "o", "g"]
+[10.269999999999994, "o", "r"]
+[10.299999999999994, "o", " "]
+[10.329999999999993, "o", "i"]
+[10.359999999999992, "o", "n"]
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+[10.569999999999988, "o", "_"]
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+[10.629999999999987, "o", "a"]
+[10.659999999999986, "o", "f"]
+[10.689999999999985, "o", "f"]
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+[10.749999999999984, "o", "e"]
+[10.779999999999983, "o", "_"]
+[10.809999999999983, "o", "s"]
+[10.839999999999982, "o", "h"]
+[10.869999999999981, "o", "o"]
+[10.89999999999998, "o", "p"]
+[10.92999999999998, "o", "\r\n"]
+[10.95999999999998, "o", "$"]
+[10.989999999999979, "o", " "]
+[11.019999999999978, "o", "s"]
+[11.049999999999978, "o", "g"]
+[11.079999999999977, "o", "r"]
+[11.109999999999976, "o", " "]
+[11.139999999999976, "o", "c"]
+[11.169999999999975, "o", "s"]
+[11.199999999999974, "o", "v"]
+[11.229999999999974, "o", " "]
+[11.259999999999973, "o", "i"]
+[11.289999999999973, "o", "m"]
+[11.319999999999972, "o", "p"]
+[11.349999999999971, "o", "o"]
+[11.37999999999997, "o", "r"]
+[11.40999999999997, "o", "t"]
+[11.43999999999997, "o", " "]
+[11.469999999999969, "o", "-"]
+[11.499999999999968, "o", "f"]
+[11.529999999999967, "o", " "]
+[11.559999999999967, "o", "j"]
+[11.589999999999966, "o", "a"]
+[11.619999999999965, "o", "f"]
+[11.649999999999965, "o", "f"]
+[11.679999999999964, "o", "l"]
+[11.709999999999964, "o", "e"]
+[11.739999999999963, "o", "_"]
+[11.769999999999962, "o", "s"]
+[11.799999999999962, "o", "h"]
+[11.829999999999961, "o", "o"]
+[11.85999999999996, "o", "p"]
+[11.88999999999996, "o", "/"]
+[11.919999999999959, "o", "d"]
+[11.949999999999958, "o", "a"]
+[11.979999999999958, "o", "t"]
+[12.009999999999957, "o", "a"]
+[12.039999999999957, "o", "/"]
+[12.069999999999956, "o", "r"]
+[12.099999999999955, "o", "a"]
+[12.129999999999955, "o", "w"]
+[12.159999999999954, "o", "_"]
+[12.189999999999953, "o", "c"]
+[12.219999999999953, "o", "u"]
+[12.249999999999952, "o", "s"]
+[12.279999999999951, "o", "t"]
+[12.30999999999995, "o", "o"]
+[12.33999999999995, "o", "m"]
+[12.36999999999995, "o", "e"]
+[12.399999999999949, "o", "r"]
+[12.429999999999948, "o", "s"]
+[12.459999999999948, "o", "."]
+[12.489999999999947, "o", "c"]
+[12.519999999999946, "o", "s"]
+[12.549999999999946, "o", "v"]
+[12.579999999999945, "o", " "]
+[12.609999999999944, "o", "-"]
+[12.639999999999944, "o", "k"]
+[12.669999999999943, "o", " "]
+[12.699999999999942, "o", "i"]
+[12.729999999999942, "o", "d"]
+[12.759999999999941, "o", " "]
+[12.78999999999994, "o", "r"]
+[12.81999999999994, "o", "a"]
+[12.84999999999994, "o", "w"]
+[12.879999999999939, "o", "_"]
+[12.909999999999938, "o", "j"]
+[12.939999999999937, "o", "a"]
+[12.969999999999937, "o", "f"]
+[12.999999999999936, "o", "f"]
+[13.029999999999935, "o", "l"]
+[13.059999999999935, "o", "e"]
+[13.089999999999934, "o", "_"]
+[13.119999999999933, "o", "s"]
+[13.149999999999933, "o", "h"]
+[13.179999999999932, "o", "o"]
+[13.209999999999932, "o", "p"]
+[13.239999999999931, "o", " "]
+[13.26999999999993, "o", "c"]
+[13.29999999999993, "o", "u"]
+[13.329999999999929, "o", "s"]
+[13.359999999999928, "o", "t"]
+[13.389999999999928, "o", "o"]
+[13.419999999999927, "o", "m"]
+[13.449999999999926, "o", "e"]
+[13.479999999999926, "o", "r"]
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+[13.539999999999925, "o", "\r\n"]
+[13.569999999999924, "o", "$"]
+[13.599999999999923, "o", " "]
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+[13.659999999999922, "o", "g"]
+[13.689999999999921, "o", "r"]
+[13.71999999999992, "o", " "]
+[13.74999999999992, "o", "c"]
+[13.77999999999992, "o", "s"]
+[13.809999999999919, "o", "v"]
+[13.839999999999918, "o", " "]
+[13.869999999999918, "o", "i"]
+[13.899999999999917, "o", "m"]
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+[13.959999999999916, "o", "o"]
+[13.989999999999915, "o", "r"]
+[14.019999999999914, "o", "t"]
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+[14.109999999999912, "o", "f"]
+[14.139999999999912, "o", " "]
+[14.169999999999911, "o", "j"]
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+[14.319999999999908, "o", "e"]
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+[14.379999999999907, "o", "s"]
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+[14.439999999999905, "o", "o"]
+[14.469999999999905, "o", "p"]
+[14.499999999999904, "o", "/"]
+[14.529999999999903, "o", "d"]
+[14.559999999999903, "o", "a"]
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+[14.6499999999999, "o", "/"]
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+[14.799999999999898, "o", "o"]
+[14.829999999999897, "o", "r"]
+[14.859999999999896, "o", "d"]
+[14.889999999999896, "o", "e"]
+[14.919999999999895, "o", "r"]
+[14.949999999999894, "o", "s"]
+[14.979999999999894, "o", "."]
+[15.009999999999893, "o", "c"]
+[15.039999999999893, "o", "s"]
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+[15.099999999999891, "o", " "]
+[15.12999999999989, "o", "-"]
+[15.15999999999989, "o", "k"]
+[15.18999999999989, "o", " "]
+[15.219999999999889, "o", "i"]
+[15.249999999999888, "o", "d"]
+[15.279999999999887, "o", " "]
+[15.309999999999887, "o", "-"]
+[15.339999999999886, "o", "t"]
+[15.369999999999886, "o", " "]
+[15.399999999999885, "o", "o"]
+[15.429999999999884, "o", "r"]
+[15.459999999999884, "o", "d"]
+[15.489999999999883, "o", "e"]
+[15.519999999999882, "o", "r"]
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+[15.579999999999881, "o", "d"]
+[15.60999999999988, "o", "a"]
+[15.63999999999988, "o", "t"]
+[15.66999999999988, "o", "e"]
+[15.699999999999878, "o", " "]
+[15.729999999999878, "o", "t"]
+[15.759999999999877, "o", "i"]
+[15.789999999999877, "o", "m"]
+[15.819999999999876, "o", "e"]
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+[15.939999999999873, "o", "m"]
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+[15.999999999999872, "o", " "]
+[16.029999999999873, "o", "r"]
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+[16.419999999999888, "o", "o"]
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+[16.539999999999893, "o", "r"]
+[16.569999999999894, "o", "d"]
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+[16.7199999999999, "o", "$"]
+[16.7499999999999, "o", " "]
+[16.7799999999999, "o", "s"]
+[16.809999999999903, "o", "g"]
+[16.839999999999904, "o", "r"]
+[16.869999999999905, "o", " "]
+[16.899999999999906, "o", "c"]
+[16.929999999999907, "o", "s"]
+[16.95999999999991, "o", "v"]
+[16.98999999999991, "o", " "]
+[17.01999999999991, "o", "i"]
+[17.049999999999912, "o", "m"]
+[17.079999999999913, "o", "p"]
+[17.109999999999914, "o", "o"]
+[17.139999999999915, "o", "r"]
+[17.169999999999916, "o", "t"]
+[17.199999999999918, "o", " "]
+[17.22999999999992, "o", "-"]
+[17.25999999999992, "o", "f"]
+[17.28999999999992, "o", " "]
+[17.319999999999922, "o", "j"]
+[17.349999999999923, "o", "a"]
+[17.379999999999924, "o", "f"]
+[17.409999999999926, "o", "f"]
+[17.439999999999927, "o", "l"]
+[17.469999999999928, "o", "e"]
+[17.49999999999993, "o", "_"]
+[17.52999999999993, "o", "s"]
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+[78.6236062622077, "o", "os info: Linux-5.4.0-1032-azure-x86_64-with-debian-buster-sid\r\nUsing profiles.yml file at .dbt/profiles.yml\r\nUsing dbt_project.yml file at /home/runner/work/splitgraph/splitgraph/examples/dbt/jaffle_shop/dbt_project.yml\r\n\r\n"]
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+[78.7072849845893, "o", "  host: localhost\r\n  port: 5432\r\n  user: sgr\r\n  database: splitgraph\r\n  schema: dbt_jaffle\r\n  search_path: None\r\n  keepalives_idle: 0\r\n  sslmode: None\r\n"]
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+[78.71964770317145, "o", "\r\n\r\n"]
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+[79.03977304458685, "o", "Initialized empty repository dbt_jaffle\r\n"]
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+[100.52005952835144, "o", "Running with dbt=0.18.1\r\n"]
+[100.94220322609009, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n\r\n"]
+[101.87217444419922, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 138 macros, 0 operations, 0 seed files, 3 sources\r\n"]
+[101.8749617958075, "o", "\r\n"]
+[102.20742625236572, "o", "11:41:53 | Concurrency: 4 threads (target='splitgraph')\r\n"]
+[102.20745510101379, "o", "11:41:53 | \r\n"]
+[102.21596259117187, "o", "11:41:53 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]"]
+[102.21604532241882, "o", "\r\n"]
+[102.21950406074585, "o", "11:41:53 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]"]
+[102.21952599525513, "o", "\r\n"]
+[102.23104638099731, "o", "11:41:53 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]\r\n"]
+[102.23156398773254, "o", "11:41:53 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]\r\n"]
+[102.4898001575476, "o", "11:41:53 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.25s]"]
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+[102.49440735817016, "o", "11:41:53 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.26s]\r\n"]
+[102.4951028251654, "o", "11:41:53 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.27s]"]
+[102.49513238906921, "o", "\r\n"]
+[102.50043910980285, "o", "11:41:53 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.27s]"]
+[102.50050920486511, "o", "\r\n"]
+[102.50244063377441, "o", "11:41:53 | 5 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]"]
+[102.50247138977112, "o", "\r\n"]
+[102.50423115730347, "o", "11:41:53 | 6 of 9 START table model dbt_jaffle.customer_payments................ [RUN]"]
+[102.5042638206488, "o", "\r\n"]
+[102.51412052154602, "o", "11:41:53 | 7 of 9 START table model dbt_jaffle.order_payments................... [RUN]"]
+[102.51415890693725, "o", "\r\n"]
+[102.67433732986511, "o", "11:41:53 | 6 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.16s]\r\n"]
+[102.67852396011413, "o", "11:41:53 | 5 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.17s]"]
+[102.67856472969116, "o", "\r\n"]
+[102.6801511669165, "o", "11:41:53 | 7 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.16s]\r\n"]
+[102.68269104003967, "o", "11:41:53 | 8 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]\r\n"]
+[102.70171875000061, "o", "11:41:53 | 9 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]"]
+[102.70174664497436, "o", "\r\n"]
+[102.79067248344482, "o", "11:41:53 | 8 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.10s]"]
+[102.79071897506775, "o", "\r\n"]
+[102.79807418823303, "o", "11:41:53 | 9 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.09s]\r\n"]
+[102.83544105529846, "o", "11:41:54 | \r\n"]
+[102.83569282531799, "o", "11:41:54 | Finished running 4 view models, 5 table models in 0.96s."]
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+[102.86852425575317, "o", "\u001b[32mCompleted successfully\u001b[0m\r\n"]
+[102.86897367477478, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
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+[121.43185772895878, "o", "Committing dbt_jaffle...\r\n"]
+[121.44720330238407, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_stripe__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
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+[121.44942011833255, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__orders is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[121.45032277107303, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[121.45837678909366, "o", "Processing table customer_payments\r\n"]
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+[121.64129843711918, "o", "Committed dbt_jaffle as 4dfc84b25278.\r\n"]
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+[137.7692315959937, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n\r\n"]
+[138.69070176124637, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 138 macros, 0 operations, 0 seed files, 3 sources\r\n"]
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+[139.41070345878666, "o", "11:41:59 | 5 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]"]
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+[139.43001703262394, "o", "11:41:59 | 7 of 9 START table model dbt_jaffle.order_payments................... [RUN]\r\n"]
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+[139.4745538616187, "o", "11:41:59 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.28s]\r\n"]
+[139.59037546157901, "o", "11:41:59 | 6 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.15s]\r\n"]
+[139.59356335640018, "o", "11:41:59 | 5 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.17s]\r\n"]
+[139.60062817573612, "o", "11:41:59 | 8 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]\r\n"]
+[139.60120944023197, "o", "11:41:59 | 7 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.17s]\r\n"]
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+[139.71699027061527, "o", "11:41:59 | 9 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.10s]\r\n"]
+[139.72412756919925, "o", "11:41:59 | 8 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.12s]\r\n"]
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+[139.7896354579932, "o", "11:41:59 | Finished running 4 view models, 5 table models in 1.09s.\r\n"]
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+[174.0771230793006, "o", "+ (86, 68, datetime.datetime(2018, 3, 26, 0, 0), 'returned', 0, 23, 0, 0, 23)\r\n"]
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+[181.29114391326965, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Run a sample query: how much in bank transfer refunds did we process?"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.5/import-from-csv.cast b/content/casts/versioned/archive/v0.2.5/import-from-csv.cast
new file mode 100644
index 00000000..06b29256
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/import-from-csv.cast
@@ -0,0 +1,601 @@
+{"version": 2, "width": 100, "height": 45, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574843, "metadata": {"tss": [{"h": "Inspect the data file", "ts": 0.06}, {"h": "Initialize the repository", "ts": 6.502984046936037}, {"h": "Ingest the data into a new table (wrapper around COPY FROM STDIN)", "ts": 27.50298404693604}, {"h": "The data is now in a table but not committed as a Splitgraph image", "ts": 36.192984046936175}, {"h": "Create a new image and tag it", "ts": 43.50194411277792}, {"h": "Inspect the image", "ts": 51.373061914444264}, {"h": "Inspect the table", "ts": 58.053087940216415}, {"h": "Inspect object metadata", "ts": 77.55308794021641}]}}
+[0.03, "o", "\u001b[H"]
+[0.06, "o", "\u001b[J"]
+[0.09, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Inspect the data file"]
+[0.12, "o", "\r\n"]
+[0.15, "o", "$ # (originally from https://data.townofcary.org/api/v2/catalog/datasets/rdu-weather-history/exports/csv)\r\n"]
+[0.18, "o", "$"]
+[0.21, "o", " "]
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+[0.9900000000000007, "o", "o"]
+[1.0200000000000007, "o", "r"]
+[1.0500000000000007, "o", "y"]
+[1.0800000000000007, "o", "."]
+[1.1100000000000008, "o", "c"]
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+[1.262974510192872, "o", "date;temperaturemin;temperaturemax;precipitation;snowfall;snowdepth;avgwindspeed;fastest2minwinddir;fastest2minwindspeed;fastest5secwinddir;fastest5secwindspeed;fog;fogheavy;mist;rain;fogground;ice;glaze;drizzle;snow;freezingrain;smokehaze;thunder;highwind;hail;blowingsnow;dust;freezingfog\r\r\n2007-01-06;50.0;71.1;0.13;0.0;0.0;8.05;230;17.9;230;21.92;Yes;No;Yes;Yes;No;No;No;No;No;No;No;No;No;No;No;No;No\r\r\n2007-01-09;30.0;55.0;0.0;0.0;0.0;7.61;280;23.04;270;29.08;No;No;No;Yes;No;No;No;No;No;No;No;No;No;No;No;N"]
+[1.262984046936036, "o", "o;No\r\r\n2007-01-14;50.0;73.9;0.0;0.0;0.0;8.5;230;21.03;230;25.05;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No\r\r\n2007-01-15;57.0;73.9;0.0;0.0;0.0;13.2;230;23.94;230;29.08;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No\r\r\n"]
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+[6.502984046936037, "o", "\u001b[J"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.5/import-from-mongo.cast b/content/casts/versioned/archive/v0.2.5/import-from-mongo.cast
new file mode 100644
index 00000000..d3a811de
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/import-from-mongo.cast
@@ -0,0 +1,657 @@
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diff --git a/content/casts/versioned/archive/v0.2.5/metadata.json b/content/casts/versioned/archive/v0.2.5/metadata.json
new file mode 100644
index 00000000..7482cb03
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.5",
+  "updated_at": "2021-01-26T14:47:48.787Z",
+  "release": {
+    "id": 36852954,
+    "tag_name": "v0.2.5",
+    "target_commitish": "503e1ef49355352e46a7407c2a75ef40fda887f7",
+    "created_at": "2021-01-25T11:24:56Z",
+    "published_at": "2021-01-25T11:57:52Z",
+    "assets": [
+      {
+        "id": 31148972,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/31148972",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2021-01-25T11:52:07Z",
+        "updated_at": "2021-01-25T11:52:07Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.5/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/casts/versioned/archive/v0.2.5/pg-replication.cast b/content/casts/versioned/archive/v0.2.5/pg-replication.cast
new file mode 100644
index 00000000..41309918
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/pg-replication.cast
@@ -0,0 +1,1400 @@
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.5/postgrest.cast b/content/casts/versioned/archive/v0.2.5/postgrest.cast
new file mode 100644
index 00000000..0589d741
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/postgrest.cast
@@ -0,0 +1,1162 @@
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diff --git a/content/casts/versioned/archive/v0.2.5/push-to-other-engine.cast b/content/casts/versioned/archive/v0.2.5/push-to-other-engine.cast
new file mode 100644
index 00000000..e639efdd
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/push-to-other-engine.cast
@@ -0,0 +1,889 @@
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.5/splitfiles.cast b/content/casts/versioned/archive/v0.2.5/splitfiles.cast
new file mode 100644
index 00000000..5b0a18d6
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/splitfiles.cast
@@ -0,0 +1,1296 @@
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+[43.86026236534162, "o", "Rows: 153\r\nColumns: \r\n"]
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+[43.86076185226484, "o", "Objects: \r\n"]
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+[55.1025172996524, "o", "demo/summary:19ef8c62185e3f3ab7971289b3bb187ac26a918bfebbbd72061f6b1b49f07736 depends on:\r\n"]
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+[55.320535593033135, "o", "FROM demo/weather:3654d5c982152c0c6dbb4d63badd1c51c1333200fdf0277941c91a51163873f8 IMPORT rdu AS source_data\r\nSQL {CREATE TABLE monthly_summary\r\n  AS SELECT to_char(date, 'YYYYMM') AS month\r\n          , avg(precipitation) AS average_precipitation\r\n          , avg(snowfall) AS average_snowfall\r\n     FROM source_data\r\n     GROUP BY month\r\n     ORDER BY month ASC}\r\n"]
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+[83.28235322952344, "o", "Executing SQL...\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.5/splitgraph-cloud.cast b/content/casts/versioned/archive/v0.2.5/splitgraph-cloud.cast
new file mode 100644
index 00000000..8aa7e0cb
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/splitgraph-cloud.cast
@@ -0,0 +1,1340 @@
+{"version": 2, "width": 100, "height": 23, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574992, "metadata": {"tss": [{"h": "Make sure you are registered and logged into Splitgraph Cloud.", "ts": 0.06}, {"h": "Ingest the weather dataset at Raleigh-Durham Airport", "ts": 8.789909934997553}, {"h": "Push the dataset to Splitgraph", "ts": 20.930056419372423}, {"h": "Upload some dataset metadata as well.", "ts": 28.99604990005483}, {"h": "Perform a request against an automatically-generated", "ts": 39.99604990005483}, {"h": "sgr also has a shorthand to access the query API", "ts": 49.77604990005497}, {"h": "You can also run a query against the Splitgraph Data Delivery Network.", "ts": 58.50322132110611}, {"h": "The query API also supports running one-off Splitfile commands against a repository,", "ts": 69.69322132110631}, {"h": "Run another command against the new layer to join the two datasets", "ts": 79.20479822158862}, {"h": "Pull the dataset and check out the new image", "ts": 88.6680527687079}, {"h": "Inspect the generated data", "ts": 101.20601590156625}]}}
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\ No newline at end of file
diff --git a/content/casts/versioned/archive/v0.2.5/us-election.cast b/content/casts/versioned/archive/v0.2.5/us-election.cast
new file mode 100644
index 00000000..09420377
--- /dev/null
+++ b/content/casts/versioned/archive/v0.2.5/us-election.cast
@@ -0,0 +1,443 @@
+{"version": 2, "width": 100, "height": 57, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611575046, "metadata": {"tss": [{"h": "This example will use Splitgraph to build a dataset that correlates, for every US county,", "ts": 0.06}, {"h": "Now, build the dataset: the Splitgraph engine will automatically download the required data", "ts": 28.060000000000002}, {"h": "Inspect the dataset metadata", "ts": 44.06}, {"h": "Get the data for New York County (FIPS 36061)", "ts": 57.56}, {"h": "Do a quick analysis of the dataset.", "ts": 66.85702814102189}]}}
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+[0.12, "o", "\r\n"]
+[0.15, "o", "$ # its voting pattern in the 2016 US Presidential election with the amount of\r\n"]
+[0.18, "o", "$ # Qualified Opportunity Zone areas in it.\r\n"]
+[0.21, "o", "$ #\r\n"]
+[0.24, "o", "$ # First, examine the Splitfile used to build the dataset.\r\n"]
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+[1.3212943744659433, "o", "# See the README for data sources.\r\n\r\n# Calculate the number of Census tracts in each county and fraction of QOZ-eligible tracts.\r\n\r\nSQL {\r\n    CREATE TABLE qoz_tract_fraction AS\r\n        WITH county_tracts AS (SELECT\r\n                COUNT(*) AS total_tract_count,\r\n                substring(lpad(\"TractId\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/census:latest\".acs2017_census_tract_data\r\n            GROUP BY county_id\r\n        ), qoz_tracts AS (SELECT\r\n                COUNT(*"]
+[1.3213020038604746, "o", ") AS qoz_tract_count,\r\n                substring(lpad(\"Census Tract Number\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/qoz:latest\".qoz\r\n            GROUP BY county_id\r\n        )\r\n    SELECT\r\n        c.county_id AS county_id,\r\n        COALESCE(q.qoz_tract_count::numeric, 0.0) / total_tract_count AS qoz_tract_fraction\r\n    FROM qoz_tracts q JOIN county_tracts c\r\n        ON q.county_id = c.county_id\r\n}\r\n\r\n# Summarize the Trump/Clinton vote fraction in each county.\r\n\r\nFROM splitgra"]
+[1.3213070106506357, "o", "ph/2016_election IMPORT {\r\n    SELECT lpad(county_fips::TEXT, 5, '0') AS county_id,\r\n        SUM(CASE WHEN candidate_normalized = 'trump' THEN votes ELSE 0 END) / SUM(votes)\r\n            AS trump_vote_fraction,\r\n        SUM(CASE WHEN candidate_normalized = 'clinton' THEN votes ELSE 0 END) / SUM(votes)\r\n            AS clinton_vote_fraction,\r\n    SUM(votes) AS total_votes\r\n    FROM precinct_results\r\n    GROUP BY county_id\r\n} AS vote_fraction\r\n\r\n# Create the final table: join the fraction of QOZ-eligible tract"]
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+[31.031320371627885, "o", "Gathering remote metadata...\r\n"]
+[32.031320371627885, "o", "Fetched metadata for 2 images, 1 table, 1 object and 0 tags.\r\n"]
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+[34.7113283061982, "o", "Committing qoz_vote_fraction...\r\n"]
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+[61.37000000000015, "o", "\u001b[0m"]
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+[61.617028141021876, "o", "{'county_id': '36061', 'qoz_tract_fraction': 0.125, 'trump_vote_fraction': 0.08865095716546313, 'clinton_vote_fraction': 0.7905445350569275, 'total_votes': 732423}\r\n"]
+[61.64702814102188, "o", "\u001b[1m"]
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+[61.70702814102188, "o", "\u001b[91m"]
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+[66.85702814102189, "o", "\u001b[J"]
+[66.88702814102189, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Do a quick analysis of the dataset."]
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+[67.87702814102192, "o", "z"]
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+[67.93702814102193, "o", "."]
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+[68.05702814102193, "o", "\u001b[0m"]
+[68.08702814102193, "o", "\r\n"]
+[68.08874904632589, "o", "import scipy.stats as ss\r\n\r\nfrom splitgraph.core.repository import Repository\r\nfrom splitgraph.ingestion.pandas import sql_to_df\r\n\r\n# Load the dataset we created into Pandas\r\nimage = Repository(\"\", \"qoz_vote_fraction\").images[\"latest\"]\r\ndf = sql_to_df(\"SELECT * FROM qoz_vote_fraction\", image=image, use_lq=True)\r\nprint(df)\r\n\r\n# Is there a correlation between the Trump vote fraction and the fraction of\r\n# QOZ-qualified tracts in every county?\r\nprint(ss.linregress(df[\"trump_vote_fraction\"], df[\"qoz_tract_fract"]
+[68.08875715255758, "o", "ion\"]))\r\n"]
+[69.08875715255758, "o", "     county_id  qoz_tract_fraction  trump_vote_fraction  clinton_vote_fraction  total_votes\r\n0        01001            0.083333             0.491135               0.160432      37000.0\r\n1        01003            0.187500             0.496056               0.125629     146925.0\r\n2        01005            0.111111             0.330305               0.294998      16512.0\r\n3        01007            0.250000             0.485132               0.134927      13889.0\r\n4        01009            0.111111             "]
+[69.08876883506795, "o", "0.588017               0.055430      38788.0\r\n...        ...                 ...                  ...                    ...          ...\r\n3109     56037            0.083333             0.709515               0.188616      17130.0\r\n3110     56039            0.000000             0.310525               0.579235      12627.0\r\n3111     56041            0.333333             0.726564               0.141913       8470.0\r\n3112     56043            0.333333             0.763241               0.139486       3814.0\r\n3"]
+[69.08878051757833, "o", "113     56045            0.000000             0.860182               0.084799       3526.0\r\n\r\n[3114 rows x 5 columns]\r\n"]
+[69.0912975025179, "o", "LinregressResult(slope=-0.06217947076052383, intercept=0.1781160377798594, rvalue=-0.05782420568050623, pvalue=0.0012457930627282692, stderr=0.019243775109388402, intercept_stderr=0.012338526356298417)\r\n"]
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+[69.24129750251791, "o", " "]
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\ No newline at end of file
diff --git a/content/casts/versioned/latest/bloom-filter.cast b/content/casts/versioned/latest/bloom-filter.cast
index 0d2f772b..535ebfb7 100644
--- a/content/casts/versioned/latest/bloom-filter.cast
+++ b/content/casts/versioned/latest/bloom-filter.cast
@@ -1,4 +1,4 @@
-{"version": 2, "width": 100, "height": 56, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1597748109, "metadata": {"tss": [{"h": "This example will use the 2016 US presidential election dataset", "ts": 0.06}, {"h": "The table is sorted by voting precinct and so queries that filter by that", "ts": 8.619999999999997}, {"h": "Currently we have no fragments in cache. Let's run this query and check the cache again", "ts": 18.757492637634186}, {"h": "Since default indexing in Splitgraph is done by min-max values for every column", "ts": 30.876399135589708}, {"h": "Let's download the whole dataset and add a bloom filter index on county_name", "ts": 41.42665547370939}, {"h": "Check the metadata of a new object to see details about the bloom filter structure", "ts": 72.77764859199567}, {"h": "Plan the query again: because the bloom filter can drop most fragments -", "ts": 100.27764859199567}]}}
+{"version": 2, "width": 100, "height": 56, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574789, "metadata": {"tss": [{"h": "This example will use the 2016 US presidential election dataset", "ts": 0.06}, {"h": "The table is sorted by voting precinct and so queries that filter by that", "ts": 8.565485591888425}, {"h": "Currently we have no fragments in cache. Let's run this query and check the cache again", "ts": 18.48469600677481}, {"h": "Since default indexing in Splitgraph is done by min-max values for every column", "ts": 30.20794162750255}, {"h": "Let's download the whole dataset and add a bloom filter index on county_name", "ts": 40.48246306419401}, {"h": "Check the metadata of a new object to see details about the bloom filter structure", "ts": 72.1258498668675}, {"h": "Plan the query again: because the bloom filter can drop most fragments -", "ts": 99.6258498668675}]}}
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 [0.09, "o", "\u001b[1m\u001b[36m\u001b[91m$ # This example will use the 2016 US presidential election dataset"]
@@ -45,911 +45,914 @@
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-[13.51749263763419, "o", "Aggregate  (cost=9785903.09..9785903.10 rows=1 width=32)\r\n->  Foreign Scan on precinct_results  (cost=20.00..9784680.00 rows=489234 width=20)\r\nFilter: ((state)::text = 'New York'::text)\r\nMulticorn: Objects removed by filter: 15\r\nMulticorn: Scan through 5 object(s) (6.63 MiB)\r\nJIT:\r\nFunctions: 3\r\nOptions: Inlining true, Optimization true, Expressions true, Deforming true\r\n"]
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-[18.787492637634188, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Currently we have no fragments in cache. Let's run this query and check the cache again"]
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-[45.59816614151043, "o", "Need to download 20 objects (20.19 MiB), cache occupancy: 6.63 MiB/10.00 GiB\r\n"]
-[45.65100685119671, "o", "Fetching 15 objects, total size 20.19 MiB\r\n"]
-[45.65374532699627, "o", "Getting download URLs from registry PostgresEngine data.splitgraph.com (ca446922b2844ed19f8e6c8b35edbe31@data.splitgraph.com:5432/sgregistry)...\r\n"]
-[46.65374532699627, "o", "\r  0%|                                                                                           | 0/15 [00:00<?, ?obj/s]"]
-[47.65374532699627, "o", "\r  0%|                                                                     | 0/15 [00:02<?, ?obj/s, object=o07f95f994...]\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:32,  2.34s/obj, object=o07f95f994...]\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:32,  2.34s/obj, object=o2551aa953...]"]
-[47.842773113251155, "o", "\r  7%|\u2588\u2588\u2588\u2588                                                         | 1/15 [00:02<00:32,  2.34s/obj, object=o2630ae563...]"]
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-[48.00655070304913, "o", "\r 20%|\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u258f                                                | 3/15 [00:02<00:20,  1.67s/obj, object=o8376c3af2...]"]
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-[49.26521674156231, "o", "\r  5%|\u2588\u2588\u2588\u2588                                                                              | 1/20 [00:01<00:19,  1.04s/objs]"]
-[50.2532734012608, "o", "\r 10%|\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u258f                                                                         | 2/20 [00:02<00:18,  1.02s/objs]"]
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-[59.94757786750836, "o", "\r 60%|\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u258c                                | 12/20 [00:11<00:07,  1.00objs/s]"]
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-[67.53764859199566, "o", "Reindexed 20 objects\r\n"]
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+[104.66075778007567, "o", "Aggregate  (cost=4000500.00..4000500.01 rows=1 width=32)\r\n->  Foreign Scan on precinct_results  (cost=20.00..4000000.00 rows=200000 width=20)\r\nFilter: ((county_name)::text = 'New York County'::text)\r\nMulticorn: Original Multicorn quals: [county_name = New York County]\r\nMulticorn: CNF quals: [[('county_name', '=', 'New York County')]]\r\nMulticorn: Objects removed by filter: 18\r\nMulticorn: Scan through 2 object(s) (2.64 MiB)\r\nJIT:\r\nFunctions: 3\r\nOptions: Inlining true, Optimization true, Expressions true, Defo"]
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+[104.69077017784178, "o", "\u001b[1m"]
+[104.72077017784179, "o", "\u001b[36m"]
+[104.75077017784179, "o", "\u001b[91m"]
+[104.78077017784179, "o", "$"]
+[104.81077017784179, "o", " "]
+[104.84077017784179, "o", "\u001b[0m"]
\ No newline at end of file
diff --git a/content/casts/versioned/latest/dbt.cast b/content/casts/versioned/latest/dbt.cast
index a780edbd..023f6885 100644
--- a/content/casts/versioned/latest/dbt.cast
+++ b/content/casts/versioned/latest/dbt.cast
@@ -1,4 +1,4 @@
-{"version": 2, "width": 100, "height": 48, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1597748214, "metadata": {"tss": [{"h": "dbt must be installed for this to work (pip install dbt)", "ts": 0.06}, {"h": "Ingest the initial data (in CSV) from this branch of the project.", "ts": 10.059999999999999}, {"h": "Snapshot the initial data with Splitgraph.", "ts": 24.98967913627625}, {"h": "Inspect the original data", "ts": 34.67908742904676}, {"h": "The status column in the raw_orders table in the initial dataset can", "ts": 47.67908742904676}, {"h": "Commit this dataset and check out the original data", "ts": 58.61615708351168}, {"h": "Check out the 'serious' version of the dbt project that uses data from", "ts": 69.0662856674199}, {"h": "Check that dbt is set up to connect to the Splitgraph engine.", "ts": 76.05286053657586}, {"h": "Now run the dbt models.", "ts": 99.55286053657586}, {"h": "Take a look at the built dataset and commit it.", "ts": 119.55286053657586}, {"h": "Check out the new version of the raw dataset and run dbt against it as well.", "ts": 134.05286053657585}, {"h": "Create an image from the new data.", "ts": 155.05286053657585}, {"h": "We now have two versions of the source and the target dataset.", "ts": 165.05286053657585}, {"h": "Inspect the difference between the two datasets that dbt built.", "ts": 172.88683985710205}, {"h": "Run a sample query: how much in bank transfer refunds did we process?", "ts": 182.38683985710205}]}}
+{"version": 2, "width": 100, "height": 48, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574891, "metadata": {"tss": [{"h": "dbt must be installed for this to work (pip install dbt)", "ts": 0.06}, {"h": "Ingest the initial data (in CSV) from this branch of the project.", "ts": 10.059999999999999}, {"h": "Snapshot the initial data with Splitgraph.", "ts": 24.769887962341315}, {"h": "Inspect the original data", "ts": 33.861865072250495}, {"h": "The status column in the raw_orders table in the initial dataset can", "ts": 46.861865072250495}, {"h": "Commit this dataset and check out the original data", "ts": 57.58658721923861}, {"h": "Check out the 'serious' version of the dbt project that uses data from", "ts": 67.39622980117845}, {"h": "Check that dbt is set up to connect to the Splitgraph engine.", "ts": 74.3833854579931}, {"h": "Now run the dbt models.", "ts": 97.8833854579931}, {"h": "Take a look at the built dataset and commit it.", "ts": 118.3833854579931}, {"h": "Check out the new version of the raw dataset and run dbt against it as well.", "ts": 132.88338545799309}, {"h": "Create an image from the new data.", "ts": 154.38338545799309}, {"h": "We now have two versions of the source and the target dataset.", "ts": 164.38338545799309}, {"h": "Inspect the difference between the two datasets that dbt built.", "ts": 171.76114391326965}, {"h": "Run a sample query: how much in bank transfer refunds did we process?", "ts": 181.26114391326965}]}}
 [0.03, "o", "\u001b[H"]
 [0.06, "o", "\u001b[J"]
 [0.09, "o", "\u001b[1m\u001b[36m\u001b[91m$ # dbt must be installed for this to work (pip install dbt)"]
@@ -88,121 +88,221 @@
 [2.6099999999999977, "o", "\r\n"]
 [2.6399999999999975, "o", "\u001b[0m"]
 [2.6699999999999973, "o", "\r\n"]
-[3.6699999999999973, "o", "installed version: 0.17.2\r\n   latest version: 0.17.2\r\n\r\nUp to date!\r\n\r\nPlugins:\r\n  - redshift: 0.17.2\r\n  - postgres: 0.17.2\r\n  - bigquery: 0.17.2\r\n  - snowflake: 0.17.2\r\n"]
-[3.670254869461057, "o", "\u001b[0m"]
-[3.6721324157714816, "o", "Cloning into 'jaffle_shop'...\r\n"]
-[3.999304933547971, "o", "remote: Enumerating objects: 277, done.        \r\n"]
-[4.001856012344358, "o", "Receiving objects:   0% (1/277)\rReceiving objects:   1% (3/277)\r"]
-[4.001872463226316, "o", "Receiving objects:   2% (6/277)\rReceiving objects:   3% (9/277)\r"]
-[4.00192706108093, "o", "Receiving objects:   4% (12/277)\r"]
-[4.001978797912595, "o", "Receiving objects:   5% (14/277)\r"]
-[4.0021373462676975, "o", "Receiving objects:   6% (17/277)\r"]
-[4.002216501235959, "o", "Receiving objects:   7% (20/277)\r"]
-[4.0022854042053195, "o", "Receiving objects:   8% (23/277)\r"]
-[4.0023278427124, "o", "Receiving objects:   9% (25/277)\r"]
-[4.002422256469724, "o", "Receiving objects:  10% (28/277)\r"]
-[4.00248686790466, "o", "Receiving objects:  11% (31/277)\r"]
-[4.002541704177854, "o", "Receiving objects:  12% (34/277)\r"]
-[4.002601308822629, "o", "Receiving objects:  13% (37/277)\r"]
-[4.002629919052121, "o", "Receiving objects:  14% (39/277)\r"]
-[4.002682847976682, "o", "Receiving objects:  15% (42/277)\r"]
-[4.002768201828, "o", "Receiving objects:  16% (45/277)\r"]
-[4.00284783363342, "o", "Receiving objects:  17% (48/277)\r"]
-[4.0029074382781955, "o", "Receiving objects:  18% (50/277)\r"]
-[4.002949399948117, "o", "Receiving objects:  19% (53/277)\r"]
-[4.010462207794187, "o", "Receiving objects:  20% (56/277)\r"]
-[4.010510845184323, "o", "Receiving objects:  21% (59/277)\r"]
-[4.010592622756955, "o", "Receiving objects:  22% (61/277)\r"]
-[4.022106571197507, "o", "Receiving objects:  23% (64/277)\r"]
-[4.0221614074707, "o", "Receiving objects:  24% (67/277)\r"]
-[4.033539695739743, "o", "Receiving objects:  25% (70/277)\rReceiving objects:  26% (73/277)\r"]
-[4.033593101501462, "o", "Receiving objects:  27% (75/277)\r"]
-[4.03359906196594, "o", "Receiving objects:  28% (78/277)\rReceiving objects:  29% (81/277)\r"]
-[4.033616943359372, "o", "Receiving objects:  30% (84/277)\r"]
-[4.033679409027097, "o", "Receiving objects:  31% (86/277)\r"]
-[4.033724946975705, "o", "Receiving objects:  32% (89/277)\r"]
-[4.033740444183347, "o", "Receiving objects:  33% (92/277)\r"]
-[4.033969087600705, "o", "Receiving objects:  34% (95/277)\r"]
-[4.03399173736572, "o", "Receiving objects:  35% (97/277)\rReceiving objects:  36% (100/277)\rReceiving objects:  37% (103/277)\r"]
-[4.033996028900144, "o", "Receiving objects:  38% (106/277)\r"]
-[4.03404204368591, "o", "Receiving objects:  39% (109/277)\r"]
-[4.034067316055295, "o", "Receiving objects:  40% (111/277)\r"]
-[4.044477863311765, "o", "Receiving objects:  41% (114/277)\r"]
-[4.0445334148406955, "o", "Receiving objects:  42% (117/277)\r"]
-[4.044550342559812, "o", "Receiving objects:  43% (120/277)\rReceiving objects:  44% (122/277)\rReceiving objects:  45% (125/277)\rReceiving objects:  46% (128/277)\r"]
-[4.044555587768552, "o", "Receiving objects:  47% (131/277)\rReceiving objects:  48% (133/277)\rReceiving objects:  49% (136/277)\r"]
-[4.044578952789304, "o", "Receiving objects:  50% (139/277)\r"]
-[4.044591827392575, "o", "Receiving objects:  51% (142/277)\r"]
-[4.044605894088742, "o", "Receiving objects:  52% (145/277)\rReceiving objects:  53% (147/277)\r"]
-[4.044612092971799, "o", "Receiving objects:  54% (150/277)\rReceiving objects:  55% (153/277)\r"]
-[4.044630928039548, "o", "Receiving objects:  56% (156/277)\r"]
-[4.044634981155393, "o", "Receiving objects:  57% (158/277)\r"]
-[4.044760150909421, "o", "Receiving objects:  58% (161/277)\rReceiving objects:  59% (164/277)\rReceiving objects:  60% (167/277)\rReceiving objects:  61% (169/277)\rReceiving objects:  62% (172/277)\rReceiving objects:  63% (175/277)\rReceiving objects:  64% (178/277)\rReceiving objects:  65% (181/277)\rReceiving objects:  66% (183/277)\r"]
-[4.044797344207761, "o", "Receiving objects:  67% (186/277)\rReceiving objects:  68% (189/277)\rReceiving objects:  69% (192/277)\rReceiving objects:  70% (194/277)\rReceiving objects:  71% (197/277)\rReceiving objects:  72% (200/277)\rReceiving objects:  73% (203/277)\rReceiving objects:  74% (205/277)\rReceiving objects:  75% (208/277)\rReceiving objects:  76% (211/277)\r"]
-[4.044811172485349, "o", "Receiving objects:  77% (214/277)\rReceiving objects:  78% (217/277)\rReceiving objects:  79% (219/277)\rReceiving objects:  80% (222/277)\rReceiving objects:  81% (225/277)\rReceiving objects:  82% (228/277)\rReceiving objects:  83% (230/277)\rReceiving objects:  84% (233/277)\r"]
-[4.0448714923858615, "o", "Receiving objects:  85% (236/277)\r"]
-[4.0449465942382785, "o", "Receiving objects:  86% (239/277)\r"]
-[4.0449513626098605, "o", "Receiving objects:  87% (241/277)\rReceiving objects:  88% (244/277)\r"]
-[4.044974250793454, "o", "Receiving objects:  89% (247/277)\r"]
-[4.044978780746457, "o", "Receiving objects:  90% (250/277)\r"]
-[4.044995708465573, "o", "Receiving objects:  91% (253/277)\r"]
-[4.044999523162839, "o", "Receiving objects:  92% (255/277)\r"]
-[4.045031948089597, "o", "Receiving objects:  93% (258/277)\r"]
-[4.045048875808713, "o", "Receiving objects:  94% (261/277)\rReceiving objects:  95% (264/277)\r"]
-[4.045053167343137, "o", "Receiving objects:  96% (266/277)\r"]
-[4.045063180923459, "o", "Receiving objects:  97% (269/277)\r"]
-[4.045074625015256, "o", "Receiving objects:  98% (272/277)\r"]
-[4.045078678131101, "o", "Receiving objects:  99% (275/277)\r"]
-[4.045130653381345, "o", "remote: Total 277 (delta 0), reused 0 (delta 0), pack-reused 277        \r\n"]
-[4.045213861465451, "o", "Receiving objects: 100% (277/277)\r"]
-[4.045218629837033, "o", "Receiving objects: 100% (277/277), 96.61 KiB | 2.15 MiB/s, done.\r\n"]
-[4.045502586364743, "o", "Resolving deltas:   0% (0/120)\r"]
-[4.045576734542844, "o", "Resolving deltas:   1% (2/120)\r"]
-[4.045596523284909, "o", "Resolving deltas:   2% (3/120)\r"]
-[4.045618934631345, "o", "Resolving deltas:   3% (4/120)\r"]
-[4.045725030899045, "o", "Resolving deltas:  15% (18/120)\r"]
-[4.045864028930661, "o", "Resolving deltas:  16% (20/120)\rResolving deltas:  17% (21/120)\r"]
-[4.045907182693479, "o", "Resolving deltas:  18% (22/120)\r"]
-[4.0459582042694064, "o", "Resolving deltas:  22% (27/120)\r"]
-[4.045962734222409, "o", "Resolving deltas:  24% (29/120)\r"]
-[4.04600493431091, "o", "Resolving deltas:  29% (35/120)\r"]
-[4.046056194305417, "o", "Resolving deltas:  33% (40/120)\r"]
-[4.046091480255124, "o", "Resolving deltas:  35% (42/120)\r"]
-[4.046137495040891, "o", "Resolving deltas:  38% (46/120)\r"]
-[4.046163482666013, "o", "Resolving deltas:  40% (48/120)\r"]
-[4.046246690750119, "o", "Resolving deltas:  43% (52/120)\r"]
-[4.046251220703122, "o", "Resolving deltas:  44% (53/120)\r"]
-[4.046277446746823, "o", "Resolving deltas:  45% (54/120)\r"]
-[4.046363992691037, "o", "Resolving deltas:  55% (67/120)\r"]
-[4.046412630081174, "o", "Resolving deltas:  60% (73/120)\r"]
-[4.046417160034177, "o", "Resolving deltas:  61% (74/120)\r"]
-[4.046421213150022, "o", "Resolving deltas:  62% (75/120)\r"]
-[4.046466035842893, "o", "Resolving deltas:  64% (77/120)\r"]
-[4.0464958381652805, "o", "Resolving deltas:  68% (82/120)\r"]
-[4.046500129699704, "o", "Resolving deltas:  70% (84/120)\r"]
-[4.046523733139035, "o", "Resolving deltas:  74% (89/120)\r"]
-[4.046542329788205, "o", "Resolving deltas:  75% (91/120)\r"]
-[4.046555204391477, "o", "Resolving deltas:  77% (93/120)\r"]
-[4.046574516296384, "o", "Resolving deltas:  78% (94/120)\r"]
-[4.046626729965207, "o", "Resolving deltas:  80% (96/120)\r"]
-[4.046637697219846, "o", "Resolving deltas:  81% (98/120)\r"]
-[4.04665510177612, "o", "Resolving deltas:  82% (99/120)\r"]
-[4.04668704986572, "o", "Resolving deltas:  86% (104/120)\r"]
-[4.0467073154449436, "o", "Resolving deltas:  89% (107/120)\r"]
-[4.046722335815427, "o", "Resolving deltas:  90% (108/120)\r"]
-[4.04680912017822, "o", "Resolving deltas:  91% (110/120)\r"]
-[4.046833677291867, "o", "Resolving deltas:  93% (112/120)\r"]
-[4.04687802314758, "o", "Resolving deltas:  95% (115/120)\r"]
-[4.046889228820798, "o", "Resolving deltas:  98% (118/120)\r"]
-[4.046902341842649, "o", "Resolving deltas:  99% (119/120)\r"]
-[4.046912117004392, "o", "Resolving deltas: 100% (120/120)\r"]
-[4.047485275268552, "o", "Resolving deltas: 100% (120/120), done.\r\n"]
-[4.077485275268552, "o", "\u001b[1m"]
-[4.1074852752685524, "o", "\u001b[36m"]
-[4.137485275268553, "o", "\u001b[91m"]
-[4.167485275268553, "o", "$"]
-[4.197485275268553, "o", " "]
-[4.227485275268553, "o", "\u001b[0m"]
+[3.6699999999999973, "o", "installed version: 0.18.1\r\n   latest version: 0.18.1\r\n\r\nUp to date!\r\n\r\nPlugins:\r\n  - postgres: 0.18.1\r\n  - redshift: 0.18.1\r\n  - snowflake: 0.18.1\r\n  - bigquery: 0.18.1\r\n"]
+[3.6702958774566623, "o", "\u001b[0m"]
+[3.6722118091583225, "o", "Cloning into 'jaffle_shop'...\r\n"]
+[3.894658250808713, "o", "remote: Enumerating objects: 292, done.        \r\n"]
+[3.8952044677734348, "o", "Receiving objects:   0% (1/292)\r"]
+[3.895216627120969, "o", "Receiving objects:   1% (3/292)\r"]
+[3.8952502441406223, "o", "Receiving objects:   2% (6/292)\r"]
+[3.8952817153930637, "o", "Receiving objects:   3% (9/292)\r"]
+[3.895416660308835, "o", "Receiving objects:   4% (12/292)\r"]
+[3.8954552841186496, "o", "Receiving objects:   5% (15/292)\r"]
+[3.895930452346799, "o", "Receiving objects:   6% (18/292)\r"]
+[3.8961667251586887, "o", "Receiving objects:   7% (21/292)\r"]
+[3.896632356643674, "o", "Receiving objects:   8% (24/292)\r"]
+[3.896911306381223, "o", "Receiving objects:   9% (27/292)\r"]
+[3.896970672607419, "o", "Receiving objects:  10% (30/292)\r"]
+[3.8970348072051975, "o", "Receiving objects:  11% (33/292)\r"]
+[3.897096796035764, "o", "Receiving objects:  12% (36/292)\r"]
+[3.8971356582641574, "o", "Receiving objects:  13% (38/292)\r"]
+[3.897226257324216, "o", "Receiving objects:  14% (41/292)\r"]
+[3.897267980575559, "o", "Receiving objects:  15% (44/292)\r"]
+[3.8973218631744357, "o", "Receiving objects:  16% (47/292)\r"]
+[3.8973800373077365, "o", "Receiving objects:  17% (50/292)\r"]
+[3.897488994598386, "o", "Receiving objects:  18% (53/292)\r"]
+[3.8975402545928928, "o", "Receiving objects:  19% (56/292)\r"]
+[3.898113889694211, "o", "Receiving objects:  20% (59/292)\r"]
+[3.898120565414426, "o", "Receiving objects:  21% (62/292)\r"]
+[3.898224277496335, "o", "Receiving objects:  22% (65/292)\r"]
+[3.8983046245574924, "o", "Receiving objects:  23% (68/292)\r"]
+[3.8993701171874973, "o", "Receiving objects:  24% (71/292)\rReceiving objects:  25% (73/292)\r"]
+[3.899386091232297, "o", "Receiving objects:  26% (76/292)\r"]
+[3.8994595241546604, "o", "Receiving objects:  27% (79/292)\r"]
+[3.8995062541961643, "o", "Receiving objects:  28% (82/292)\r"]
+[3.899519844055173, "o", "Receiving objects:  29% (85/292)\r"]
+[3.8995749187469455, "o", "Receiving objects:  30% (88/292)\r"]
+[3.8995789718627902, "o", "Receiving objects:  31% (91/292)\r"]
+[3.8995911312103244, "o", "Receiving objects:  32% (94/292)\r"]
+[3.899620456695554, "o", "Receiving objects:  33% (97/292)\r"]
+[3.899625463485715, "o", "Receiving objects:  34% (100/292)\rReceiving objects:  35% (103/292)\r"]
+[3.89967195510864, "o", "Receiving objects:  36% (106/292)\rReceiving objects:  37% (109/292)\r"]
+[3.8996781539916965, "o", "Receiving objects:  38% (111/292)\r"]
+[3.8996829223632785, "o", "Receiving objects:  39% (114/292)\r"]
+[3.8997155857086154, "o", "Receiving objects:  40% (117/292)\r"]
+[3.8997415733337375, "o", "Receiving objects:  41% (120/292)\r"]
+[3.8997797203063937, "o", "Receiving objects:  42% (123/292)\r"]
+[3.8998142910003635, "o", "Receiving objects:  43% (126/292)\r"]
+[3.8998448085784885, "o", "Receiving objects:  44% (129/292)\r"]
+[3.899883193969724, "o", "Receiving objects:  45% (132/292)\r"]
+[3.8999315929412814, "o", "Receiving objects:  46% (135/292)\r"]
+[3.89995853424072, "o", "Receiving objects:  47% (138/292)\r"]
+[3.8999780845642062, "o", "Receiving objects:  48% (141/292)\r"]
+[3.900017185211179, "o", "Receiving objects:  49% (144/292)\r"]
+[3.90007798194885, "o", "Receiving objects:  50% (146/292)\r"]
+[3.9001154136657687, "o", "Receiving objects:  51% (149/292)\r"]
+[3.900134487152097, "o", "Receiving objects:  52% (152/292)\r"]
+[3.9001645278930637, "o", "Receiving objects:  53% (155/292)\r"]
+[3.900186939239499, "o", "Receiving objects:  54% (158/292)\r"]
+[3.9002184104919406, "o", "Receiving objects:  55% (161/292)\r"]
+[3.9002460670471164, "o", "Receiving objects:  56% (164/292)\r"]
+[3.900280399322507, "o", "Receiving objects:  57% (167/292)\r"]
+[3.900318307876584, "o", "Receiving objects:  58% (170/292)\r"]
+[3.9003426265716525, "o", "Receiving objects:  59% (173/292)\r"]
+[3.9004053306579562, "o", "Receiving objects:  60% (176/292)\r"]
+[3.900430364608762, "o", "Receiving objects:  61% (179/292)\r"]
+[3.9004463386535617, "o", "Receiving objects:  62% (182/292)\r"]
+[3.900461120605466, "o", "Receiving objects:  63% (184/292)\r"]
+[3.9004809093475314, "o", "Receiving objects:  64% (187/292)\r"]
+[3.900496406555173, "o", "Receiving objects:  65% (190/292)\r"]
+[3.90052906990051, "o", "Receiving objects:  66% (193/292)\r"]
+[3.9005862903594943, "o", "Receiving objects:  67% (196/292)\r"]
+[3.9006027412414523, "o", "Receiving objects:  68% (199/292)\r"]
+[3.900638980865476, "o", "Receiving objects:  69% (202/292)\r"]
+[3.9006642532348605, "o", "Receiving objects:  70% (205/292)\r"]
+[3.9006876182556125, "o", "Receiving objects:  71% (208/292)\r"]
+[3.900711936950681, "o", "Receiving objects:  72% (211/292)\r"]
+[3.900738401412961, "o", "Receiving objects:  73% (214/292)\r"]
+[3.9007858467102023, "o", "Receiving objects:  74% (217/292)\r"]
+[3.9008118343353244, "o", "Receiving objects:  75% (219/292)\r"]
+[3.900834484100339, "o", "Receiving objects:  76% (222/292)\r"]
+[3.9008607101440402, "o", "Receiving objects:  77% (225/292)\r"]
+[3.900883598327634, "o", "Receiving objects:  78% (228/292)\r"]
+[3.9008986186981174, "o", "Receiving objects:  79% (231/292)\r"]
+[3.900923175811765, "o", "Receiving objects:  80% (234/292)\r"]
+[3.9009792041778537, "o", "Receiving objects:  81% (237/292)\r"]
+[3.9010073375701877, "o", "Receiving objects:  82% (240/292)\r"]
+[3.901024026870725, "o", "Receiving objects:  83% (243/292)\r"]
+[3.9010516834259006, "o", "Receiving objects:  84% (246/292)\r"]
+[3.901071710586545, "o", "Receiving objects:  85% (249/292)\r"]
+[3.901141567230222, "o", "Receiving objects:  86% (252/292)\r"]
+[3.9012018871307346, "o", "Receiving objects:  87% (255/292)\r"]
+[3.9012281131744357, "o", "Receiving objects:  88% (257/292)\r"]
+[3.901254577636716, "o", "Receiving objects:  89% (260/292)\r"]
+[3.9016339015960666, "o", "remote: Total 292 (delta 0), reused 0 (delta 0), pack-reused 292        "]
+[3.901751918792722, "o", "\r\n"]
+[3.901938123703, "o", "Receiving objects:  90% (263/292)\r"]
+[3.901970548629758, "o", "Receiving objects:  91% (266/292)\r"]
+[3.9021107387542697, "o", "Receiving objects:  92% (269/292)\r"]
+[3.902252359390256, "o", "Receiving objects:  93% (272/292)\r"]
+[3.90240256309509, "o", "Receiving objects:  94% (275/292)\r"]
+[3.9025234413146945, "o", "Receiving objects:  95% (278/292)\r"]
+[3.9026447963714572, "o", "Receiving objects:  96% (281/292)\r"]
+[3.9027768802642795, "o", "Receiving objects:  97% (284/292)\r"]
+[3.902902050018308, "o", "Receiving objects:  98% (287/292)\r"]
+[3.903027219772336, "o", "Receiving objects:  99% (290/292)\r"]
+[3.9031988811492893, "o", "Receiving objects: 100% (292/292)\r"]
+[3.9033266735076877, "o", "Receiving objects: 100% (292/292), 99.50 KiB | 11.05 MiB/s, done."]
+[3.9034434986114475, "o", "\r\n"]
+[3.903726263046262, "o", "Resolving deltas:   0% (0/130)\r"]
+[3.903841180801389, "o", "Resolving deltas:   1% (2/130)\r"]
+[3.90399209976196, "o", "Resolving deltas:   2% (3/130)\r"]
+[3.904139919281003, "o", "Resolving deltas:   3% (4/130)\r"]
+[3.904364986419675, "o", "Resolving deltas:   4% (6/130)\r"]
+[3.904517097473142, "o", "Resolving deltas:   5% (7/130)\r"]
+[3.9046668243408176, "o", "Resolving deltas:   6% (8/130)\r"]
+[3.9048237037658664, "o", "Resolving deltas:   7% (10/130)\r"]
+[3.9049622249603244, "o", "Resolving deltas:   8% (11/130)\r"]
+[3.905165834426877, "o", "Resolving deltas:   9% (12/130)\r"]
+[3.9053944778442355, "o", "Resolving deltas:  10% (13/130)\r"]
+[3.9054016304016086, "o", "Resolving deltas:  11% (15/130)\r"]
+[3.905425710678098, "o", "Resolving deltas:  12% (16/130)\r"]
+[3.9057676029205295, "o", "Resolving deltas:  13% (17/130)\r"]
+[3.9058498573303195, "o", "Resolving deltas:  14% (19/130)\r"]
+[3.905879421234128, "o", "Resolving deltas:  15% (20/130)\r"]
+[3.9059149456024143, "o", "Resolving deltas:  16% (21/130)\r"]
+[3.9059666824340793, "o", "Resolving deltas:  17% (23/130)\r"]
+[3.9060091209411594, "o", "Resolving deltas:  18% (24/130)\r"]
+[3.90604083061218, "o", "Resolving deltas:  19% (25/130)\r"]
+[3.906059904098508, "o", "Resolving deltas:  20% (26/130)\r"]
+[3.9060892295837375, "o", "Resolving deltas:  21% (28/130)\r"]
+[3.9061130714416477, "o", "Resolving deltas:  22% (29/130)\r"]
+[3.906137628555295, "o", "Resolving deltas:  23% (30/130)\r"]
+[3.906163377761838, "o", "Resolving deltas:  24% (32/130)\r"]
+[3.9061881732940646, "o", "Resolving deltas:  25% (33/130)\r"]
+[3.906208200454709, "o", "Resolving deltas:  26% (34/130)\r"]
+[3.9062425327301, "o", "Resolving deltas:  27% (36/130)\r"]
+[3.906262083053586, "o", "Resolving deltas:  28% (37/130)\r"]
+[3.9062823486328098, "o", "Resolving deltas:  29% (38/130)\r"]
+[3.9063166809082004, "o", "Resolving deltas:  30% (39/130)\r"]
+[3.9063405227661105, "o", "Resolving deltas:  31% (41/130)\r"]
+[3.9063591194152805, "o", "Resolving deltas:  32% (42/130)\r"]
+[3.906384153366086, "o", "Resolving deltas:  33% (43/130)\r"]
+[3.9064301681518527, "o", "Resolving deltas:  34% (45/130)\r"]
+[3.9064556789398166, "o", "Resolving deltas:  35% (46/130)\r"]
+[3.9064809513092014, "o", "Resolving deltas:  36% (47/130)\r"]
+[3.90651051521301, "o", "Resolving deltas:  37% (49/130)\r"]
+[3.9065303039550754, "o", "Resolving deltas:  38% (50/130)\r"]
+[3.90655557632446, "o", "Resolving deltas:  39% (51/130)\r"]
+[3.906578941345212, "o", "Resolving deltas:  40% (52/130)\r"]
+[3.9066127967834445, "o", "Resolving deltas:  41% (54/130)\r"]
+[3.906632823944089, "o", "Resolving deltas:  42% (55/130)\r"]
+[3.906663579940793, "o", "Resolving deltas:  43% (56/130)\r"]
+[3.9066952896118137, "o", "Resolving deltas:  44% (58/130)\r"]
+[3.9067160320281955, "o", "Resolving deltas:  45% (59/130)\r"]
+[3.9067377281188937, "o", "Resolving deltas:  46% (60/130)\r"]
+[3.9067742061614963, "o", "Resolving deltas:  47% (62/130)\r"]
+[3.90679447174072, "o", "Resolving deltas:  48% (63/130)\r"]
+[3.9068142604827854, "o", "Resolving deltas:  49% (64/130)\r"]
+[3.906839294433591, "o", "Resolving deltas:  50% (65/130)\r"]
+[3.9068681430816623, "o", "Resolving deltas:  51% (67/130)\r"]
+[3.906891269683835, "o", "Resolving deltas:  52% (68/130)\r"]
+[3.906909627914426, "o", "Resolving deltas:  53% (69/130)\r"]
+[3.9069394302368137, "o", "Resolving deltas:  54% (71/130)\r"]
+[3.9069644641876193, "o", "Resolving deltas:  55% (72/130)\r"]
+[3.9069906902313205, "o", "Resolving deltas:  56% (73/130)\r"]
+[3.907017631530759, "o", "Resolving deltas:  57% (75/130)\r"]
+[3.907040996551511, "o", "Resolving deltas:  58% (76/130)\r"]
+[3.907067222595212, "o", "Resolving deltas:  59% (77/130)\r"]
+[3.907086057662961, "o", "Resolving deltas:  60% (78/130)\r"]
+[3.9071311187744113, "o", "Resolving deltas:  61% (80/130)\r"]
+[3.907165451049802, "o", "Resolving deltas:  62% (81/130)\r"]
+[3.9071859550476047, "o", "Resolving deltas:  63% (82/130)\r"]
+[3.9072157573699924, "o", "Resolving deltas:  64% (84/130)\r"]
+[3.907240552902219, "o", "Resolving deltas:  65% (85/130)\r"]
+[3.9072648715972873, "o", "Resolving deltas:  66% (86/130)\r"]
+[3.907295150756833, "o", "Resolving deltas:  67% (88/130)\r"]
+[3.9073142242431613, "o", "Resolving deltas:  68% (89/130)\r"]
+[3.90734378814697, "o", "Resolving deltas:  69% (90/130)\r"]
+[3.90736500740051, "o", "Resolving deltas:  70% (91/130)\r"]
+[3.9074227046966525, "o", "Resolving deltas:  71% (93/130)\r"]
+[3.907447738647458, "o", "Resolving deltas:  72% (94/130)\r"]
+[3.90746848106384, "o", "Resolving deltas:  73% (95/130)\r"]
+[3.9074951839446994, "o", "Resolving deltas:  74% (97/130)\r"]
+[3.9075142574310275, "o", "Resolving deltas:  75% (98/130)\r"]
+[3.907536907196042, "o", "Resolving deltas:  76% (99/130)\r"]
+[3.907574338912961, "o", "Resolving deltas:  77% (101/130)\r"]
+[3.9075943660736057, "o", "Resolving deltas:  78% (102/130)\r"]
+[3.907613916397092, "o", "Resolving deltas:  79% (103/130)\r"]
+[3.907642049789426, "o", "Resolving deltas:  80% (104/130)\r"]
+[3.907714767456052, "o", "Resolving deltas:  81% (106/130)\r"]
+[3.907736225128171, "o", "Resolving deltas:  82% (107/130)\r"]
+[3.907754821777341, "o", "Resolving deltas:  83% (108/130)\r"]
+[3.9077905845642062, "o", "Resolving deltas:  84% (110/130)\r"]
+[3.9078103733062717, "o", "Resolving deltas:  85% (111/130)\r"]
+[3.9078292083740207, "o", "Resolving deltas:  86% (112/130)\r"]
+[3.9078568649291965, "o", "Resolving deltas:  87% (114/130)\r"]
+[3.9078802299499484, "o", "Resolving deltas:  88% (115/130)\r"]
+[3.9078993034362766, "o", "Resolving deltas:  89% (116/130)\r"]
+[3.907923383712766, "o", "Resolving deltas:  90% (117/130)\r"]
+[3.9080919456481906, "o", "Resolving deltas:  91% (119/130)\r"]
+[3.9081269931793186, "o", "Resolving deltas:  92% (120/130)\r"]
+[3.9081596565246555, "o", "Resolving deltas:  93% (121/130)\r"]
+[3.908212108612058, "o", "Resolving deltas:  94% (123/130)\r"]
+[3.908235950469968, "o", "Resolving deltas:  95% (124/130)\r"]
+[3.908256931304929, "o", "Resolving deltas:  96% (125/130)\r"]
+[3.9082838726043674, "o", "Resolving deltas:  97% (127/130)\r"]
+[3.9083034229278537, "o", "Resolving deltas:  98% (128/130)\r"]
+[3.9083313179016086, "o", "Resolving deltas:  99% (129/130)\r"]
+[3.9083589744567844, "o", "Resolving deltas: 100% (130/130)\r"]
+[3.9084397983551, "o", "Resolving deltas: 100% (130/130), done."]
+[3.9084505271911594, "o", "\r\n"]
+[3.938450527191159, "o", "\u001b[1m"]
+[3.968450527191159, "o", "\u001b[36m"]
+[3.998450527191159, "o", "\u001b[91m"]
+[4.028450527191159, "o", "$"]
+[4.058450527191159, "o", " "]
+[4.088450527191159, "o", "\u001b[0m"]
 [10.03, "o", "\u001b[H"]
 [10.059999999999999, "o", "\u001b[J"]
 [10.089999999999998, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Ingest the initial data (in CSV) from this branch of the project."]
@@ -513,1579 +613,1581 @@
 [19.239999999999995, "o", "\r\n"]
 [19.269999999999996, "o", "\u001b[0m"]
 [19.299999999999997, "o", "\r\n"]
-[19.749679136276242, "o", "Initialized empty repository raw_jaffle_shop\r\n"]
-[19.779679136276243, "o", "\u001b[1m"]
-[19.809679136276245, "o", "\u001b[36m"]
-[19.839679136276246, "o", "\u001b[91m"]
-[19.869679136276247, "o", "$"]
-[19.899679136276248, "o", " "]
-[19.92967913627625, "o", "\u001b[0m"]
-[24.95967913627625, "o", "\u001b[H"]
-[24.98967913627625, "o", "\u001b[J"]
-[25.019679136276253, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Snapshot the initial data with Splitgraph."]
-[25.049679136276254, "o", "\r\n"]
-[25.079679136276255, "o", "$"]
-[25.109679136276256, "o", " "]
-[25.139679136276257, "o", "s"]
-[25.169679136276258, "o", "g"]
-[25.19967913627626, "o", "r"]
-[25.22967913627626, "o", " "]
-[25.25967913627626, "o", "d"]
-[25.289679136276263, "o", "i"]
-[25.319679136276264, "o", "f"]
-[25.349679136276265, "o", "f"]
-[25.379679136276266, "o", " "]
-[25.409679136276267, "o", "r"]
-[25.43967913627627, "o", "a"]
-[25.46967913627627, "o", "w"]
-[25.49967913627627, "o", "_"]
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-[25.589679136276274, "o", "f"]
-[25.619679136276275, "o", "f"]
-[25.649679136276276, "o", "l"]
-[25.679679136276278, "o", "e"]
-[25.70967913627628, "o", "_"]
-[25.73967913627628, "o", "s"]
-[25.76967913627628, "o", "h"]
-[25.799679136276282, "o", "o"]
-[25.829679136276283, "o", "p"]
-[25.859679136276284, "o", "\r\n"]
-[25.889679136276285, "o", "$"]
-[25.919679136276287, "o", " "]
-[25.949679136276288, "o", "s"]
-[25.97967913627629, "o", "g"]
-[26.00967913627629, "o", "r"]
-[26.03967913627629, "o", " "]
-[26.069679136276292, "o", "c"]
-[26.099679136276293, "o", "o"]
-[26.129679136276295, "o", "m"]
-[26.159679136276296, "o", "m"]
-[26.189679136276297, "o", "i"]
-[26.219679136276298, "o", "t"]
-[26.2496791362763, "o", " "]
-[26.2796791362763, "o", "r"]
-[26.3096791362763, "o", "a"]
-[26.339679136276303, "o", "w"]
-[26.369679136276304, "o", "_"]
-[26.399679136276305, "o", "j"]
-[26.429679136276306, "o", "a"]
-[26.459679136276307, "o", "f"]
-[26.489679136276308, "o", "f"]
-[26.51967913627631, "o", "l"]
-[26.54967913627631, "o", "e"]
-[26.57967913627631, "o", "_"]
-[26.609679136276313, "o", "s"]
-[26.639679136276314, "o", "h"]
-[26.669679136276315, "o", "o"]
-[26.699679136276316, "o", "p"]
-[26.729679136276317, "o", "\r\n"]
-[26.75967913627632, "o", "$"]
-[26.78967913627632, "o", " "]
-[26.81967913627632, "o", "s"]
-[26.849679136276322, "o", "g"]
-[26.879679136276323, "o", "r"]
-[26.909679136276324, "o", " "]
-[26.939679136276325, "o", "t"]
-[26.969679136276326, "o", "a"]
-[26.999679136276328, "o", "g"]
-[27.02967913627633, "o", " "]
-[27.05967913627633, "o", "r"]
-[27.08967913627633, "o", "a"]
-[27.119679136276332, "o", "w"]
-[27.149679136276333, "o", "_"]
-[27.179679136276334, "o", "j"]
-[27.209679136276335, "o", "a"]
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-[27.269679136276338, "o", "f"]
-[27.29967913627634, "o", "l"]
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-[27.35967913627634, "o", "_"]
-[27.389679136276342, "o", "s"]
-[27.419679136276343, "o", "h"]
-[27.449679136276345, "o", "o"]
-[27.479679136276346, "o", "p"]
-[27.509679136276347, "o", " "]
-[27.539679136276348, "o", "a"]
-[27.56967913627635, "o", "s"]
-[27.59967913627635, "o", "o"]
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-[27.659679136276353, "o", "_"]
-[27.689679136276354, "o", "2"]
-[27.719679136276355, "o", "0"]
-[27.749679136276356, "o", "1"]
-[27.779679136276357, "o", "8"]
-[27.80967913627636, "o", "0"]
-[27.83967913627636, "o", "4"]
-[27.86967913627636, "o", "0"]
-[27.89967913627636, "o", "9"]
-[27.929679136276363, "o", "\r\n"]
-[27.959679136276364, "o", "\u001b[0m"]
-[27.989679136276365, "o", "\r\n"]
-[28.424552717208982, "o", "Between 000000000000 and the current working copy: \r\n"]
-[28.42457202911389, "o", "customers: table added\r\norders: table added\r\npayments: table added\r\n"]
-[28.84313515663159, "o", "Committing raw_jaffle_shop...\r\n"]
-[28.868462839126707, "o", "Processing table orders\r\n"]
-[28.95179084777844, "o", "Processing table payments\r\n"]
-[28.975720443725706, "o", "Processing table customers\r\n"]
-[29.00725845336926, "o", "Committed raw_jaffle_shop as 307f0d80a29d.\r\n"]
-[29.43908742904675, "o", "Tagged raw_jaffle_shop:307f0d80a29d9cdec073cf7915c3165c654b2c7551ea1fb487e0b5bb516a7b06 with asof_20180409.\r\n"]
-[29.469087429046752, "o", "\u001b[1m"]
-[29.499087429046753, "o", "\u001b[36m"]
-[29.529087429046754, "o", "\u001b[91m"]
-[29.559087429046755, "o", "$"]
-[29.589087429046756, "o", " "]
-[29.619087429046758, "o", "\u001b[0m"]
-[34.64908742904676, "o", "\u001b[H"]
-[34.67908742904676, "o", "\u001b[J"]
-[34.70908742904676, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Inspect the original data"]
-[34.73908742904676, "o", "\r\n"]
-[34.76908742904676, "o", "$"]
-[34.799087429046764, "o", " "]
-[34.829087429046766, "o", "s"]
-[34.85908742904677, "o", "g"]
-[34.88908742904677, "o", "r"]
-[34.91908742904677, "o", " "]
-[34.94908742904677, "o", "s"]
-[34.97908742904677, "o", "h"]
-[35.00908742904677, "o", "o"]
-[35.03908742904677, "o", "w"]
-[35.069087429046775, "o", " "]
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-[35.15908742904678, "o", "w"]
-[35.18908742904678, "o", "_"]
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-[35.27908742904678, "o", "f"]
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-[35.45908742904679, "o", "h"]
-[35.48908742904679, "o", "o"]
-[35.51908742904679, "o", "p"]
-[35.54908742904679, "o", ":"]
-[35.579087429046794, "o", "a"]
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-[35.96908742904681, "o", "\r\n"]
-[35.99908742904681, "o", "$"]
-[36.02908742904681, "o", " "]
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-[36.44908742904683, "o", "_"]
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-[47.76908742904676, "o", "$ # change through time. Pretend that some jaffles were actually returned.\r\n"]
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-[62.59950763702439, "o", "Storing and indexing table orders\r\n"]
-[62.693473644257054, "o", "Committed raw_jaffle_shop as 0d4672fe2944.\r\n"]
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-[63.826285667419896, "o", "Checked out raw_jaffle_shop:307f0d80a29d.\r\n"]
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-[69.15628566741991, "o", "$ # the actual warehouse rather than seed data.\r\n"]
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-[70.8125474929815, "o", "Branch 'demo/master' set up to track remote branch 'demo/master' from 'origin'.\r\n"]
-[70.81286053657585, "o", "Switched to a new branch 'demo/master'\r\n"]
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-[76.14286053657587, "o", "$ # We will be outputting data into the dbt_jaffle repository, so set that up.\r\n"]
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-[79.32448011398382, "o", "jaffle_shop:\r\n  target: splitgraph\r\n  outputs:\r\n    splitgraph:\r\n      type: postgres\r\n      host: localhost\r\n      user: sgr\r\n      pass: supersecure\r\n      port: 5432\r\n      dbname: splitgraph\r\n      # The final schema that dbt writes to is a combination of this profile schema\r\n      # and the schema specified in the model.\r\n      schema: \"dbt_jaffle\"\r\n      threads: 4\r\n"]
-[80.31484848022528, "o", "Running with dbt=0.17.2\r\n"]
-[80.32304388046332, "o", "dbt version: 0.17.2\r\npython version: 3.7.8\r\npython path: /opt/hostedtoolcache/Python/3.7.8/x64/bin/python\r\nos info: Linux-5.3.0-1034-azure-x86_64-with-debian-buster-sid\r\nUsing profiles.yml file at .dbt/profiles.yml\r\nUsing dbt_project.yml file at /home/runner/work/splitgraph/splitgraph/examples/dbt/jaffle_shop/dbt_project.yml\r\n\r\n"]
-[80.40039521217413, "o", "Configuration:\r\n  profiles.yml file [\u001b[32mOK found and valid\u001b[0m]\r\n  dbt_project.yml file [\u001b[32mOK found and valid\u001b[0m]\r\n\r\nRequired dependencies:\r\n"]
-[80.40620881080694, "o", " - git [\u001b[32mOK found\u001b[0m]\r\n\r\n"]
-[80.40621715545721, "o", "Connection:\r\n"]
-[80.40648132324286, "o", "  host: localhost\r\n  port: 5432\r\n  user: sgr"]
-[80.40649133682318, "o", "\r\n  database: splitgraph\r\n  schema: dbt_jaffle\r\n"]
-[80.40649777412482, "o", "  search_path: None\r\n"]
-[80.40650206565924, "o", "  keepalives_idle: 0\r\n"]
-[80.40650611877508, "o", "  sslmode: None"]
-[80.40651041030951, "o", "\r\n"]
-[80.4181607341773, "o", "  Connection test: \u001b[32mOK connection ok\u001b[0m\r\n\r\n"]
-[80.65028506279059, "o", "\u001b[0m"]
-[81.10634380340643, "o", "Initialized empty repository dbt_jaffle\r\n"]
-[81.13634380340643, "o", "\u001b[1m"]
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-[81.19634380340644, "o", "\u001b[91m"]
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-[102.18167203903259, "o", "Running with dbt=0.17.2\r\n"]
-[102.65703934669556, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n"]
-[103.50227064132751, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 134 macros, 0 operations, 0 seed files, 3 sources\r\n"]
-[103.50558346748413, "o", "\r\n"]
-[103.89438265800537, "o", "10:57:20 | Concurrency: 4 threads (target='splitgraph')\r\n"]
-[103.89445585250915, "o", "10:57:20 | \r\n"]
-[103.90151638031067, "o", "10:57:20 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]\r\n"]
-[103.90456193924011, "o", "10:57:20 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]"]
-[103.90459984779419, "o", "\r\n"]
-[103.92510265350403, "o", "10:57:20 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]"]
-[103.92513960838379, "o", "\r\n"]
-[103.92854851722778, "o", "10:57:20 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]"]
-[103.9285814189917, "o", "\r\n"]
-[104.13948720932068, "o", "10:57:20 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.21s]\r\n"]
-[104.15192932128967, "o", "10:57:20 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.24s]"]
-[104.15197032928528, "o", "\r\n"]
-[104.15774649620117, "o", "10:57:20 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.22s]\r\n"]
-[104.15809101104797, "o", "10:57:20 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.25s]"]
-[104.15813416481079, "o", "\r\n"]
-[104.15951413154663, "o", "10:57:20 | 5 of 9 START table model dbt_jaffle.order_payments................... [RUN]\r\n"]
-[104.17273944854797, "o", "10:57:20 | 6 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]"]
-[104.17277378082336, "o", "\r\n"]
-[104.1743044281012, "o", "10:57:20 | 7 of 9 START table model dbt_jaffle.customer_payments................ [RUN]\r\n"]
-[104.34312433242859, "o", "10:57:21 | 6 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.16s]"]
-[104.34317296981872, "o", "\r\n"]
-[104.34982413291992, "o", "10:57:21 | 5 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.18s]\r\n"]
-[104.3537899875647, "o", "10:57:21 | 7 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.18s]"]
-[104.35385793685974, "o", "\r\n"]
-[104.35435384750427, "o", "10:57:21 | 8 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]\r\n"]
-[104.36712473869385, "o", "10:57:21 | 9 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]\r\n"]
-[104.45229786872925, "o", "10:57:21 | 8 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.10s]"]
-[104.45233553886474, "o", "\r\n"]
-[104.45532554626526, "o", "10:57:21 | 9 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.09s]\r\n"]
-[104.55785316467346, "o", "10:57:21 | \r\n10:57:21 | Finished running 4 view models, 5 table models in 1.05s.\r\n"]
-[104.59392875671448, "o", "\r\n"]
-[104.59399885177673, "o", "\u001b[32mCompleted successfully\u001b[0m\r\n"]
-[104.59425610542358, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
-[104.78745049476684, "o", "\u001b[0m"]
-[104.81745049476685, "o", "\u001b[1m"]
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-[119.58286053657586, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Take a look at the built dataset and commit it."]
-[119.61286053657587, "o", "\r\n"]
-[119.64286053657587, "o", "$ # Note Splitgraph doesn't currently support storing views\r\n"]
-[119.67286053657587, "o", "$ # that dbt uses as a staging point for the initial data.\r\n"]
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-[122.61452951431339, "o", "customer_orders: table added\r\ncustomer_payments: table added\r\ndim_customers: table added\r\nfct_orders: table added\r\norder_payments: table added\r\nstg_jaffle_shop__customers: untracked\r\nstg_jaffle_shop__orders: untracked\r\nstg_jaffle_shop__payments: untracked\r\nstg_stripe__payments: untracked\r\n"]
-[123.04851188659732, "o", "Committing dbt_jaffle...\r\n"]
-[123.06387319564884, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__customers is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
-[123.06527938842838, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
-[123.0665067672736, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_stripe__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
-[123.06759586334293, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__orders is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
-[123.07686080932682, "o", "Processing table order_payments\r\n"]
-[123.15929093360965, "o", "Processing table customer_orders\r\n"]
-[123.18243875503605, "o", "Processing table customer_payments\r\n"]
-[123.20395007133548, "o", "Processing table dim_customers\r\n"]
-[123.22811021804874, "o", "Processing table fct_orders\r\n"]
-[123.26880779266422, "o", "Committed dbt_jaffle as d005a7a8550f.\r\n"]
-[123.69446554184024, "o", "Tagged dbt_jaffle:d005a7a8550ff44263df7a10a5bd6ff8722d7176c6a562b0e4ddceff775b5bcc with asof_20180409.\r\n"]
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-[137.7424397850043, "o", "Checked out raw_jaffle_shop:0d4672fe2944.\r\n"]
-[138.73295907020633, "o", "Running with dbt=0.17.2\r\n"]
-[139.19068149566715, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n"]
-[140.0489833736426, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 134 macros, 0 operations, 0 seed files, 3 sources\r\n"]
-[140.05231551170414, "o", "\r\n"]
-[140.55932048797672, "o", "10:57:27 | Concurrency: 4 threads (target='splitgraph')\r\n"]
-[140.55939010620182, "o", "10:57:27 | \r\n"]
-[140.56406167984073, "o", "10:57:27 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]"]
-[140.56410149574344, "o", "\r\n"]
-[140.56913975715702, "o", "10:57:27 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]\r\n"]
-[140.5695095443732, "o", "10:57:27 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]\r\n"]
-[140.56980017662113, "o", "10:57:27 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]"]
-[140.56982854843204, "o", "\r\n"]
-[140.84097293853824, "o", "10:57:27 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.27s]"]
-[140.84242896080082, "o", "\r\n"]
-[140.85777644157474, "o", "10:57:27 | 5 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]"]
-[140.85779360771244, "o", "\r\n"]
-[140.86917714119022, "o", "10:57:27 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.29s]\r\n"]
-[140.87635067939823, "o", "10:57:27 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.29s]\r\n"]
-[140.9079354190833, "o", "10:57:27 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.31s]\r\n"]
-[140.91285947799747, "o", "10:57:27 | 6 of 9 START table model dbt_jaffle.customer_payments................ [RUN]\r\n"]
-[140.915233173371, "o", "10:57:27 | 7 of 9 START table model dbt_jaffle.order_payments................... [RUN]\r\n"]
-[141.02817944526737, "o", "10:57:27 | 5 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.16s]\r\n"]
-[141.0378921413428, "o", "10:57:27 | 6 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.12s]\r\n"]
-[141.04733304023807, "o", "10:57:27 | 8 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]\r\n"]
-[141.06151823043888, "o", "10:57:27 | 7 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.12s]\r\n"]
-[141.06901029586857, "o", "10:57:27 | 9 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]\r\n"]
-[141.15607170105045, "o", "10:57:27 | 8 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.11s]\r\n"]
-[141.17179802894657, "o", "10:57:27 | 9 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.10s]\r\n"]
-[141.21920374870365, "o", "10:57:27 | \r\n"]
-[141.21926216125553, "o", "10:57:27 | Finished running 4 view models, 5 table models in 1.17s.\r\n"]
-[141.2556016826636, "o", "\r\n"]
-[141.25566963195865, "o", "\u001b[32mCompleted successfully\u001b[0m\r\n"]
-[141.25575284004276, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
-[141.44639686584537, "o", "\u001b[0m"]
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-[157.38265316963256, "o", "Committing dbt_jaffle...\r\n"]
-[157.40730708122314, "o", "Processing table customer_payments\r\n"]
-[157.46465747833312, "o", "Object o47a7af4dc6d74898da55e6c760eac4d702db25633cfab4e28e6df77cf00098 already exists, skipping\r\n"]
-[157.47437732696594, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
-[157.4755472469336, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_stripe__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
-[157.4765750694281, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__orders is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
-[157.48407452583373, "o", "Processing table order_payments\r\n"]
-[157.49264209747375, "o", "Object o87940f703edacc7113c37ae83a6abe6293f48cbb940171ef03875a066b0c5c already exists, skipping\r\n"]
-[157.50498955726684, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__customers is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
-[157.51278012275756, "o", "Processing table customer_orders\r\n"]
-[157.5182899761206, "o", "Object o0fafb9e76c06e221af3aa558b0a751b176857a09b2d75ca00826becbd12ef5 already exists, skipping\r\n"]
-[157.5330583381659, "o", "Processing table dim_customers\r\n"]
-[157.53891723632873, "o", "Object o9656926ef986d89e326952a43869eaf3dc59905ff22aba22cd3dd67a834dc5 already exists, skipping\r\n"]
-[157.55384152412475, "o", "Processing table fct_orders\r\n"]
-[157.59945385932983, "o", "Committed dbt_jaffle as ef85372390df.\r\n"]
-[158.02836411476196, "o", "Tagged dbt_jaffle:ef85372390df0fcb93f0070d311b60c5593e9d2c9714aa246a35e3df973b30ca with asof_20180410.\r\n"]
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\ No newline at end of file
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+[102.20745510101379, "o", "11:41:53 | \r\n"]
+[102.21596259117187, "o", "11:41:53 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]"]
+[102.21604532241882, "o", "\r\n"]
+[102.21950406074585, "o", "11:41:53 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]"]
+[102.21952599525513, "o", "\r\n"]
+[102.23104638099731, "o", "11:41:53 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]\r\n"]
+[102.23156398773254, "o", "11:41:53 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]\r\n"]
+[102.4898001575476, "o", "11:41:53 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.25s]"]
+[102.48984831810058, "o", "\r\n"]
+[102.49440735817016, "o", "11:41:53 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.26s]\r\n"]
+[102.4951028251654, "o", "11:41:53 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.27s]"]
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+[102.50050920486511, "o", "\r\n"]
+[102.50244063377441, "o", "11:41:53 | 5 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]"]
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+[102.50423115730347, "o", "11:41:53 | 6 of 9 START table model dbt_jaffle.customer_payments................ [RUN]"]
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+[102.67433732986511, "o", "11:41:53 | 6 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.16s]\r\n"]
+[102.67852396011413, "o", "11:41:53 | 5 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.17s]"]
+[102.67856472969116, "o", "\r\n"]
+[102.6801511669165, "o", "11:41:53 | 7 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.16s]\r\n"]
+[102.68269104003967, "o", "11:41:53 | 8 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]\r\n"]
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+[102.79067248344482, "o", "11:41:53 | 8 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.10s]"]
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+[102.79807418823303, "o", "11:41:53 | 9 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.09s]\r\n"]
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+[102.83569282531799, "o", "11:41:54 | Finished running 4 view models, 5 table models in 0.96s."]
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+[102.86852425575317, "o", "\u001b[32mCompleted successfully\u001b[0m\r\n"]
+[102.86897367477478, "o", "\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
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+[121.43185772895878, "o", "Committing dbt_jaffle...\r\n"]
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+[121.44842877388065, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__customers is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[121.44942011833255, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__orders is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[121.45032277107303, "o", "\u001b[33mwarning: \u001b[0mTable dbt_jaffle.stg_jaffle_shop__payments is a view. Splitgraph currently doesn't support views and this table will not be in the image.\r\n"]
+[121.45837678909366, "o", "Processing table customer_payments\r\n"]
+[121.53266420364444, "o", "Processing table order_payments\r\n"]
+[121.55691471099918, "o", "Processing table customer_orders\r\n"]
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+[121.64129843711918, "o", "Committed dbt_jaffle as 4dfc84b25278.\r\n"]
+[121.8522914886481, "o", "Tagged dbt_jaffle:4dfc84b252784b6c1d48b01a52330909df45ae1a54aa94b0b4b6d149f9063a90 with asof_20180409.\r\n"]
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+[135.8833854579932, "o", "\r\n"]
+[136.35629776954715, "o", "Checked out raw_jaffle_shop:1f2c905da645.\r\n"]
+[137.3484390163428, "o", "Running with dbt=0.18.1\r\n"]
+[137.7692315959937, "o", "* Deprecation Warning: dbt v0.17.0 introduces a new config format for the\r\ndbt_project.yml file. Support for the existing version 1 format will be removed\r\nin a future release of dbt. The following packages are currently configured with\r\nconfig version 1:\r\n - jaffle_shop\r\n\r\nFor upgrading instructions, consult the documentation:\r\n  https://docs.getdbt.com/docs/guides/migration-guide/upgrading-to-0-17-0\r\n\r\n"]
+[138.69070176124637, "o", "Found 9 models, 28 tests, 0 snapshots, 0 analyses, 138 macros, 0 operations, 0 seed files, 3 sources\r\n"]
+[138.6934724235541, "o", "\r\n"]
+[139.14221529007023, "o", "11:41:58 | Concurrency: 4 threads (target='splitgraph')\r\n"]
+[139.14228466987674, "o", "11:41:58 | \r\n"]
+[139.14880756378238, "o", "11:41:59 | 2 of 9 START view model dbt_jaffle.stg_jaffle_shop__payments......... [RUN]"]
+[139.1488793277747, "o", "\r\n"]
+[139.15047625541752, "o", "11:41:59 | 1 of 9 START view model dbt_jaffle.stg_jaffle_shop__orders........... [RUN]"]
+[139.15049771308963, "o", "\r\n"]
+[139.15214637756412, "o", "11:41:59 | 3 of 9 START view model dbt_jaffle.stg_jaffle_shop__customers........ [RUN]"]
+[139.1521649742133, "o", "\r\n"]
+[139.15272811889713, "o", "11:41:59 | 4 of 9 START view model dbt_jaffle.stg_stripe__payments.............. [RUN]"]
+[139.15276650428837, "o", "\r\n"]
+[139.39657620430057, "o", "11:41:59 | 1 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__orders...... [\u001b[32mCREATE VIEW\u001b[0m in 0.24s]"]
+[139.39662245750492, "o", "\r\n"]
+[139.40382102966373, "o", "11:41:59 | 3 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__customers... [\u001b[32mCREATE VIEW\u001b[0m in 0.24s]\r\n"]
+[139.41070345878666, "o", "11:41:59 | 5 of 9 START table model dbt_jaffle.customer_orders.................. [RUN]"]
+[139.41073779106205, "o", "\r\n"]
+[139.4128089332587, "o", "11:41:59 | 2 of 9 OK created view model dbt_jaffle.stg_jaffle_shop__payments.... [\u001b[32mCREATE VIEW\u001b[0m in 0.26s]\r\n"]
+[139.43001703262394, "o", "11:41:59 | 7 of 9 START table model dbt_jaffle.order_payments................... [RUN]\r\n"]
+[139.43106440544193, "o", "11:41:59 | 6 of 9 START table model dbt_jaffle.customer_payments................ [RUN]\r\n"]
+[139.4745538616187, "o", "11:41:59 | 4 of 9 OK created view model dbt_jaffle.stg_stripe__payments......... [\u001b[32mCREATE VIEW\u001b[0m in 0.28s]\r\n"]
+[139.59037546157901, "o", "11:41:59 | 6 of 9 OK created table model dbt_jaffle.customer_payments........... [\u001b[32mSELECT 62\u001b[0m in 0.15s]\r\n"]
+[139.59356335640018, "o", "11:41:59 | 5 of 9 OK created table model dbt_jaffle.customer_orders............. [\u001b[32mSELECT 62\u001b[0m in 0.17s]\r\n"]
+[139.60062817573612, "o", "11:41:59 | 8 of 9 START table model dbt_jaffle.dim_customers.................... [RUN]\r\n"]
+[139.60120944023197, "o", "11:41:59 | 7 of 9 OK created table model dbt_jaffle.order_payments.............. [\u001b[32mSELECT 99\u001b[0m in 0.17s]\r\n"]
+[139.61884049415653, "o", "11:41:59 | 9 of 9 START table model dbt_jaffle.fct_orders....................... [RUN]\r\n"]
+[139.71699027061527, "o", "11:41:59 | 9 of 9 OK created table model dbt_jaffle.fct_orders.................. [\u001b[32mSELECT 99\u001b[0m in 0.10s]\r\n"]
+[139.72412756919925, "o", "11:41:59 | 8 of 9 OK created table model dbt_jaffle.dim_customers............... [\u001b[32mSELECT 100\u001b[0m in 0.12s]\r\n"]
+[139.78952459335392, "o", "11:41:59 | \r\n"]
+[139.7896354579932, "o", "11:41:59 | Finished running 4 view models, 5 table models in 1.09s.\r\n"]
+[139.81638411521976, "o", "\r\n"]
+[139.81682352066105, "o", "\u001b[32mCompleted successfully\u001b[0m\r\n\r\nDone. PASS=9 WARN=0 ERROR=0 SKIP=0 TOTAL=9\r\n"]
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diff --git a/content/casts/versioned/latest/import-from-csv.cast b/content/casts/versioned/latest/import-from-csv.cast
index f0dd0ae6..06b29256 100644
--- a/content/casts/versioned/latest/import-from-csv.cast
+++ b/content/casts/versioned/latest/import-from-csv.cast
@@ -1,4 +1,4 @@
-{"version": 2, "width": 100, "height": 45, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1597748161, "metadata": {"tss": [{"h": "Inspect the data file", "ts": 0.06}, {"h": "Initialize the repository", "ts": 6.502770185470583}, {"h": "Ingest the data into a new table (wrapper around COPY FROM STDIN)", "ts": 27.502770185470585}, {"h": "The data is now in a table but not committed as a Splitgraph image", "ts": 36.19277018547072}, {"h": "Create a new image and tag it", "ts": 43.907890129089566}, {"h": "Inspect the image", "ts": 52.24793912887603}, {"h": "Inspect the table", "ts": 59.14804100036656}, {"h": "Inspect object metadata", "ts": 78.64804100036656}]}}
+{"version": 2, "width": 100, "height": 45, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574843, "metadata": {"tss": [{"h": "Inspect the data file", "ts": 0.06}, {"h": "Initialize the repository", "ts": 6.502984046936037}, {"h": "Ingest the data into a new table (wrapper around COPY FROM STDIN)", "ts": 27.50298404693604}, {"h": "The data is now in a table but not committed as a Splitgraph image", "ts": 36.192984046936175}, {"h": "Create a new image and tag it", "ts": 43.50194411277792}, {"h": "Inspect the image", "ts": 51.373061914444264}, {"h": "Inspect the table", "ts": 58.053087940216415}, {"h": "Inspect object metadata", "ts": 77.55308794021641}]}}
 [0.03, "o", "\u001b[H"]
 [0.06, "o", "\u001b[J"]
 [0.09, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Inspect the data file"]
@@ -41,557 +41,561 @@
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-[1.26272822380066, "o", "date;temperaturemin;temperaturemax;precipitation;snowfall;snowdepth;avgwindspeed;fastest2minwinddir;fastest2minwindspeed;fastest5secwinddir;fastest5secwindspeed;fog;fogheavy;mist;rain;fogground;ice;glaze;drizzle;snow;freezingrain;smokehaze;thunder;highwind;hail;blowingsnow;dust;freezingfog\r\r\n2007-01-06;50.0;71.1;0.13;0.0;0.0;8.05;230;17.9;230;21.92;Yes;No;Yes;Yes;No;No;No;No;No;No;No;No;No;No;No;No;No\r\r\n2007-01-09;30.0;55.0;0.0;0.0;0.0;7.61;280;23.04;270;29.08;No;No;No;Yes;No;No;No;No;No;No;No;No;No;No;No;N"]
-[1.262737522125245, "o", "o;No\r\r\n2007-01-14;50.0;73.9;0.0;0.0;0.0;8.5;230;21.03;230;25.05;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No;No\r"]
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\ No newline at end of file
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+[80.19250623703047, "o", "0]\r\n  fastest5secwinddir: [10, 360]\r\n  fastest2minwindspeed: ['4.92', '59.95']\r\n  fastest5secwindspeed: ['6.93', '86.12']\r\n\r\n"]
+[80.21747796058699, "o", "Location: created locally\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/latest/import-from-mongo.cast b/content/casts/versioned/latest/import-from-mongo.cast
index a590026e..d3a811de 100644
--- a/content/casts/versioned/latest/import-from-mongo.cast
+++ b/content/casts/versioned/latest/import-from-mongo.cast
@@ -1,4 +1,4 @@
-{"version": 2, "width": 100, "height": 31, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1597748178, "metadata": {"tss": [{"h": "Inspect the config file", "ts": 0.06}, {"h": "Do some preliminary cleanup", "ts": 6.0600000000000005}, {"h": "Mount the Mongo database", "ts": 12.450885791778571}, {"h": "Check the contents of the new table", "ts": 27.450885791778575}, {"h": "Import the data into a new Splitgraph repository", "ts": 34.549149436950756}, {"h": "Alternatively, data can be imported from other databases with Splitfiles", "ts": 43.59124686241168}]}}
+{"version": 2, "width": 100, "height": 35, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574858, "metadata": {"tss": [{"h": "Inspect the config file", "ts": 0.06}, {"h": "Do some preliminary cleanup", "ts": 6.0600000000000005}, {"h": "Mount the Mongo database", "ts": 12.236531753540046}, {"h": "Check the contents of the new table", "ts": 29.23653175354005}, {"h": "Import the data into a new Splitgraph repository", "ts": 36.11753360748298}, {"h": "Alternatively, data can be imported from other databases with Splitfiles", "ts": 44.95733525276202}]}}
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-[19.544909200668386, "o", "Usage: sgr mount mongo_fdw [OPTIONS] SCHEMA\r\n\r\n      Mount a Mongo database.\r\n\r\n      Mounts one or more collections on a remote Mongo database as a set of\r\n      foreign tables locally.\r\n\r\nOptions:\r\n  -c, --connection TEXT       Connection string in the form\r\n                              username:password@server:port\r\n\r\n  -o, --handler-options JSON  JSON-encoded dictionary or @filename.json with\r\n                              handler options:\r\n                              \r\n                              "]
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-[19.966890535354665, "o", "Mounting table stuff\r\n"]
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-[29.309149436950747, "o", "5f3bb3e00080ccc8aeab5528  Alex      12  False\r\n5f3bb3e00080ccc8aeab5529  James      2  True\r\n5f3bb3e00080ccc8aeab552a  Alice  98765  True\r\n"]
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-[45.63289195060756, "o", "FROM MOUNT mongo_fdw originro:originpass@mongo:27017 '{\"stuff\": {\r\n                \"db\": \"origindb\",\r\n                \"coll\": \"stuff\",\r\n                \"schema\": {\r\n                    \"name\": \"text\",\r\n                    \"duration\": \"numeric\",\r\n                    \"happy\": \"boolean\"}}}'\r\n    IMPORT {SELECT * FROM stuff} AS stuff\r\n"]
-[46.05799108505275, "o", "Executing Splitfile mongo_import.splitfile with arguments {}\r\n"]
-[46.08856183052089, "o", "\u001b[1m\r\nStep 1/1 : FROM MOUNT mongo_fdw originro:originpass@mongo:27017 '{\"s...\u001b[0m\r\n"]
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-[46.96862655639674, "o", "Successfully built mongo_import:23c854a6a1a6.\r\n"]
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+[39.71733525276201, "o", "my/repository:stuff has been imported from staging:SELECT name, duration, happy FROM stuff\r\n"]
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+[46.99923258781459, "o", "FROM MOUNT mongo_fdw originro:originpass@mongo:27017 '{\"tables\": {\"stuff\": {\r\n                \"options\": {\r\n                  \"db\": \"origindb\",\r\n                  \"coll\": \"stuff\"\r\n                },\r\n                \"schema\": {\r\n                  \"name\": \"text\",\r\n                  \"duration\": \"numeric\",\r\n                  \"happy\": \"boolean\"}}}}'\r\n    IMPORT {SELECT * FROM stuff} AS stuff\r\n"]
+[47.21813851356532, "o", "Executing Splitfile mongo_import.splitfile with arguments {}\r\n"]
+[47.25107174873378, "o", "\u001b[1m\r\nStep 1/1 : FROM MOUNT mongo_fdw originro:originpass@mongo:27017 '{\"t...\u001b[0m\r\n"]
+[47.33410793304469, "o", "Mounting table stuff\r\n"]
+[47.872206268310805, "o", "Processing table sg_tmp_74d2492791d9a3fb4b0aa9ccd59edd1c\r\n"]
+[48.17307621002223, "o", "Successfully built mongo_import:df6be799e221.\r\n"]
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+[57.682964601517, "o", "Image mongo_import:df6be799e2210519ec780af8804c05eea389b7bafe3444a060f0308fa8e3650d\r\n"]
+[57.68298343658475, "o", "Importing 1 table from mongo_fdw_tmp_staging\r\nCreated at 2021-01-25T11:41:18.579770\r\n"]
+[57.68495396614102, "o", "Size: 589.00 B\r\n"]
+[57.68496254920987, "o", "Parent: 0000000000000000000000000000000000000000000000000000000000000000\r\n\r\nTables:\r\n"]
+[57.68573979377774, "o", "  stuff\r\n"]
+[57.914235868454256, "o", "Alex      12  False  600eae551b83bbae088e4ff0\r\nAlice  98765  True   600eae551b83bbae088e4ff2\r\nJames      2  True   600eae551b83bbae088e4ff1\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/latest/metadata.json b/content/casts/versioned/latest/metadata.json
index 92284ebc..7482cb03 100644
--- a/content/casts/versioned/latest/metadata.json
+++ b/content/casts/versioned/latest/metadata.json
@@ -1,21 +1,21 @@
 {
-  "title": "v0.2.0",
-  "updated_at": "2020-08-19T12:21:47.707Z",
+  "title": "v0.2.5",
+  "updated_at": "2021-01-26T14:47:48.787Z",
   "release": {
-    "id": 29809771,
-    "tag_name": "v0.2.0",
-    "target_commitish": "fc2111a585b03d322ce4207e385470d6746e4292",
-    "created_at": "2020-08-18T10:20:14Z",
-    "published_at": "2020-08-18T11:16:01Z",
+    "id": 36852954,
+    "tag_name": "v0.2.5",
+    "target_commitish": "503e1ef49355352e46a7407c2a75ef40fda887f7",
+    "created_at": "2021-01-25T11:24:56Z",
+    "published_at": "2021-01-25T11:57:52Z",
     "assets": [
       {
-        "id": 24041264,
-        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/24041264",
+        "id": 31148972,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/31148972",
         "name": "sgr-docs-bin.tar.gz",
         "label": "",
-        "created_at": "2020-08-18T11:03:51Z",
-        "updated_at": "2020-08-18T11:03:52Z",
-        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.0/sgr-docs-bin.tar.gz"
+        "created_at": "2021-01-25T11:52:07Z",
+        "updated_at": "2021-01-25T11:52:07Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.5/sgr-docs-bin.tar.gz"
       }
     ]
   },
diff --git a/content/casts/versioned/latest/pg-replication.cast b/content/casts/versioned/latest/pg-replication.cast
index 784fad8a..41309918 100644
--- a/content/casts/versioned/latest/pg-replication.cast
+++ b/content/casts/versioned/latest/pg-replication.cast
@@ -1,4 +1,4 @@
-{"version": 2, "width": 100, "height": 21, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1597748255, "metadata": {"tss": [{"h": "The configuration file for sgr contains credentials for the", "ts": 0.06}, {"h": "The origin database has been set up with a couple of tables.", "ts": 10.059999999999999}, {"h": "Create a publication on the origin database", "ts": 19.870128202438273}, {"h": "Create a schema with the same name and same tables", "ts": 28.650128202438417}, {"h": "Set up replication from the origin database.", "ts": 38.65012820243842}, {"h": "Check the data on the engine", "ts": 49.59012820243864}, {"h": "Commit the data as an initial image", "ts": 58.261983480453885}, {"h": "Make a change on the origin database", "ts": 68.50437539100702}, {"h": "The change propagates to the subscriber and gets", "ts": 84.57437539100744}, {"h": "Committing creates a new image, snapshotting the state.", "ts": 91.48039416313273}]}}
+{"version": 2, "width": 100, "height": 21, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574925, "metadata": {"tss": [{"h": "The configuration file for sgr contains credentials for the", "ts": 0.06}, {"h": "The origin database has been set up with a couple of tables.", "ts": 10.059999999999999}, {"h": "Create a publication on the origin database", "ts": 19.425977277755656}, {"h": "Create a schema with the same name and same tables", "ts": 28.2059772777558}, {"h": "Set up replication from the origin database.", "ts": 38.2059772777558}, {"h": "Check the data on the engine", "ts": 49.145977277756025}, {"h": "Commit the data as an initial image", "ts": 57.40877088546792}, {"h": "Make a change on the origin database", "ts": 67.0071112442022}, {"h": "The change propagates to the subscriber and gets", "ts": 83.07711124420263}, {"h": "Committing creates a new image, snapshotting the state.", "ts": 89.73939589500529}]}}
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@@ -23,13 +23,13 @@
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+[0.8411627674102788, "o", "$"]
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@@ -157,1248 +157,1244 @@
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\ No newline at end of file
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diff --git a/content/casts/versioned/latest/postgrest.cast b/content/casts/versioned/latest/postgrest.cast
index 005341e3..0589d741 100644
--- a/content/casts/versioned/latest/postgrest.cast
+++ b/content/casts/versioned/latest/postgrest.cast
@@ -1,4 +1,4 @@
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+[57.731039381027884, "o", "Checked out demo/weather:ed3e9f0589a5.\r\n"]
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\ No newline at end of file
diff --git a/content/casts/versioned/latest/push-to-other-engine.cast b/content/casts/versioned/latest/push-to-other-engine.cast
index 5302a185..e639efdd 100644
--- a/content/casts/versioned/latest/push-to-other-engine.cast
+++ b/content/casts/versioned/latest/push-to-other-engine.cast
@@ -1,4 +1,4 @@
-{"version": 2, "width": 100, "height": 26, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1597748307, "metadata": {"tss": [{"h": "The .sgconfig file is written from the point of view of the first engine.", "ts": 0.06}, {"h": "Initialize the two engines", "ts": 9.559999999999999}, {"h": "Ingest the weather dataset at Raleigh-Durham Airport from the CSV example", "ts": 22.060000000000002}, {"h": "Push the dataset out to the other engine", "ts": 35.43500604629543}, {"h": "Check that the dataset exists on the remote engine", "ts": 43.75982338905371}, {"h": "Update the dataset on the local engine", "ts": 51.0185891914372}, {"h": "Inspect our changes", "ts": 62.748706197739295}, {"h": "Push the changes out to the remote engine", "ts": 70.48870619773936}, {"h": "Inspect the dataset on the remote engine", "ts": 77.7427551937111}]}}
+{"version": 2, "width": 100, "height": 26, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574974, "metadata": {"tss": [{"h": "The .sgconfig file is written from the point of view of the first engine.", "ts": 0.06}, {"h": "Initialize the two engines", "ts": 9.559999999999999}, {"h": "Ingest the weather dataset at Raleigh-Durham Airport from the CSV example", "ts": 22.060000000000002}, {"h": "Push the dataset out to the other engine", "ts": 34.80296697616603}, {"h": "Check that the dataset exists on the remote engine", "ts": 42.909147806167965}, {"h": "Update the dataset on the local engine", "ts": 49.957064800262884}, {"h": "Inspect our changes", "ts": 61.26829776763981}, {"h": "Push the changes out to the remote engine", "ts": 69.00849350929332}, {"h": "Inspect the dataset on the remote engine", "ts": 76.05235507011491}]}}
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@@ -22,42 +22,13 @@
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@@ -105,33 +76,35 @@
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-[12.865451726913422, "o", "Database splitgraph already exists, skipping\r\n"]
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-[72.37654426574784, "o", "\r  0%|                                                                                           | 0/1 [00:00<?, ?objs/s]"]
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\ No newline at end of file
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+[37.46850235939061, "o", "\r  0%|                                                                                           | 0/1 [00:00<?, ?objs/s]"]
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+[77.85337175369347, "o", "\r\nCreated at 2021-01-25T11:43:07.358211\r\n"]
+[77.85428585052574, "o", "Size: 122.33 KiB\r\n"]
+[77.85429824829185, "o", "Parent: 0534f739c773076e94807307afa481071e1a86ec08b2ff9b7ce8e4400273466f\r\n\r\nTables:\r\n"]
+[77.85485853195274, "o", "  rdu\r\n"]
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+[77.91485853195275, "o", "\u001b[36m"]
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\ No newline at end of file
diff --git a/content/casts/versioned/latest/splitfiles.cast b/content/casts/versioned/latest/splitfiles.cast
index 93a13272..5b0a18d6 100644
--- a/content/casts/versioned/latest/splitfiles.cast
+++ b/content/casts/versioned/latest/splitfiles.cast
@@ -1,4 +1,4 @@
-{"version": 2, "width": 100, "height": 31, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1597748374, "metadata": {"tss": [{"h": "Ingest the weather dataset at Raleigh-Durham Airport from the CSV example", "ts": 0.06}, {"h": "Inspect the Splitfile used to create a derivative image", "ts": 13.440025711059576}, {"h": "Run the Splitfile to build a new image", "ts": 21.44002571105958}, {"h": "Much like with Docker, the build result is cached, so running build again checks out the existing image.", "ts": 31.125843954086438}, {"h": "Inspect the new dataset", "ts": 39.08060078620932}, {"h": "Inspect the image's provenance (generated from its metadata)", "ts": 54.08060078620932}, {"h": "We can also see that a new image has been derived from demo/weather", "ts": 62.28819267272979}, {"h": "Now pretend there's been a revision to the source historical weather data", "ts": 68.9603800106052}, {"h": "Use the derivative image's provenance to rebuild it against the revised version", "ts": 81.9639288043982}, {"h": "Compare the two resultant datasets", "ts": 91.83666687965467}]}}
+{"version": 2, "width": 100, "height": 31, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611575026, "metadata": {"tss": [{"h": "Ingest the weather dataset at Raleigh-Durham Airport from the CSV example", "ts": 0.06}, {"h": "Inspect the Splitfile used to create a derivative image", "ts": 12.777223730087291}, {"h": "Run the Splitfile to build a new image", "ts": 20.777223730087293}, {"h": "Much like with Docker, the build result is cached, so running build again checks out the existing image.", "ts": 30.030819845199723}, {"h": "Inspect the new dataset", "ts": 37.76714687347434}, {"h": "Inspect the image's provenance (generated from its metadata)", "ts": 52.76714687347434}, {"h": "We can also see that a new image has been derived from demo/weather", "ts": 60.560535593033144}, {"h": "Now pretend there's been a revision to the source historical weather data", "ts": 67.03130715370213}, {"h": "Use the derivative image's provenance to rebuild it against the revised version", "ts": 79.60598312377991}, {"h": "Compare the two resultant datasets", "ts": 89.10598312377991}]}}
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 [0.09, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Ingest the weather dataset at Raleigh-Durham Airport from the CSV example"]
@@ -221,1081 +221,1076 @@
 [6.60000000000001, "o", "\r\n"]
 [6.6300000000000106, "o", "\u001b[0m"]
 [6.660000000000011, "o", "\r\n"]
-[7.111905012130748, "o", "Initialized empty repository demo/weather\r\n"]
-[7.539691362380992, "o", "Committing demo/weather...\r\n"]
-[7.563695583343517, "o", "Processing table rdu\r\n"]
-[7.781760368347179, "o", "Committed demo/weather as 59251ee7b7a6.\r\n"]
-[8.200025711059581, "o", "Tagged demo/weather:59251ee7b7a65362042569310f7a72bd093a42690d5de7c51af53e9cb58f7859 with initial_data.\r\n"]
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-[14.642684316635112, "o", "# First, import the original data table: this doesn't consume extra space (reuses the same\r\n# object that's used by the demo/weather repository.\r\n\r\nFROM demo/weather IMPORT rdu AS source_data\r\n\r\n# Now summarize the data\r\nSQL CREATE TABLE monthly_summary AS ( \\\r\n    SELECT to_char(date, 'YYYYMM') AS month, \\\r\n        AVG(precipitation) AS average_precipitation, \\\r\n        AVG(snowfall) AS average_snowfall \\\r\n    FROM source_data \\\r\n    GROUP BY month \\\r\n    ORDER BY month ASC)\r\n"]
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-[24.94224234581006, "o", "\u001b[1m\r\nStep 1/2 : FROM demo/weather IMPORT rdu AS source_data\u001b[0m\r\n"]
-[24.968759498596317, "o", "Resolving repository demo/weather\r\n"]
-[24.97251864433301, "o", "Importing 1 table from demo/weather:59251ee7b7a6 into demo/summary\r\n"]
-[25.10352917671216, "o", " ---> 39bf1d9b891b\r\n"]
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-[25.11116691589368, "o", "Executing SQL...\r\n"]
-[25.314144573211795, "o", "Committing demo/summary...\r\n"]
-[25.342964372635013, "o", "Processing table monthly_summary\r\n"]
-[25.44488092422498, "o", " ---> 88fd847037b7\r\n"]
-[25.448454341888553, "o", "Successfully built demo/summary:88fd847037b7.\r\n"]
-[25.88584395408643, "o", "Tagged demo/summary:88fd847037b706db1b686a63e5307de4c5358a3672e531487390483a2107d749 with based_on_initial.\r\n"]
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-[33.48147445678731, "o", "\u001b[1m\r\nStep 1/2 : FROM demo/weather IMPORT rdu AS source_data\u001b[0m\r\n"]
-[33.48244243621846, "o", "Resolving repository demo/weather\r\n"]
-[33.61548214912435, "o", " ---> Using cache\r\n"]
-[33.615501461029254, "o", " ---> 39bf1d9b891b\r\n"]
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-[33.84060078620931, "o", "Successfully built demo/summary:88fd847037b7.\r\n"]
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-[45.16504594802899, "o", "Image demo/summary:88fd847037b706db1b686a63e5307de4c5358a3672e531487390483a2107d749\r\nCREATE TABLE monthly_summary AS (     SELECT to_char(date, 'YYYYMM') AS month,         AVG(precipitation) AS average_precipitation,         AVG(snowfall) AS average_snowfall     FROM source_data     GROUP BY month     ORDER BY month ASC)\r\n"]
-[45.16506454467816, "o", "Created at 2020-08-18T10:59:46.977684\r\n"]
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-[45.16702315330548, "o", "  monthly_summary\r\n"]
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-[45.58286902427716, "o", "Table demo/summary:88fd847037b706db1b686a63e5307de4c5358a3672e531487390483a2107d749/monthly_summary\r\n\r\n"]
-[45.58443686485333, "o", "Size: 2.17 KiB\r\n"]
-[45.585473270416685, "o", "Rows: 153\r\nColumns: \r\n"]
-[45.58548995971722, "o", "  month (text)\r\n  average_precipitation (numeric)\r\n  average_snowfall (numeric)\r\n\r\nObjects: \r\n"]
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-[45.993286581039854, "o", "201909  0.171667  0\r\n201908  0.139032  0\r\n201907  0.117097  0\r\n201906  0.12      0\r\n201905  0.103548  0\r\n"]
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-[56.624939851761155, "o", "demo/summary:88fd847037b706db1b686a63e5307de4c5358a3672e531487390483a2107d749 depends on:\r\n"]
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-[57.04819267272978, "o", "# Splitfile commands used to recreate demo/summary:88fd847037b706db1b686a63e5307de4c5358a3672e531487390483a2107d749\r\nFROM demo/weather:59251ee7b7a65362042569310f7a72bd093a42690d5de7c51af53e9cb58f7859 IMPORT rdu AS source_data\r\nSQL {CREATE TABLE monthly_summary\r\n  AS SELECT to_char(date, 'YYYYMM') AS month\r\n          , avg(precipitation) AS average_precipitation\r\n          , avg(snowfall) AS average_snowfall\r\n     FROM source_data\r\n     GROUP BY month\r\n     ORDER BY month ASC}\r\n"]
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-[63.720364990234714, "o", "demo/weather:59251ee7b7a65362042569310f7a72bd093a42690d5de7c51af53e9cb58f7859 is depended on by:\r\n"]
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-[68.99038001060521, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Now pretend there's been a revision to the source historical weather data"]
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-[85.68292409896924, "o", "Resolving repository demo/weather\r\n"]
-[85.68733937263562, "o", "Importing 1 table from demo/weather:9c7dd0eb570c into demo/summary\r\n"]
-[85.83753711700513, "o", " ---> 5674dc23d661\r\n"]
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-[85.84293157577588, "o", "Executing SQL...\r\n"]
-[86.05398041725232, "o", "Committing demo/summary...\r\n"]
-[86.07872683525159, "o", "Processing table monthly_summary\r\n"]
-[86.18005830764844, "o", " ---> 7444567d3a95\r\n"]
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\ No newline at end of file
+[6.88269368171693, "o", "Initialized empty repository demo/weather\r\n"]
+[7.087494049072276, "o", "Committing demo/weather...\r\n"]
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+[43.646879405975774, "o", "Image demo/summary:19ef8c62185e3f3ab7971289b3bb187ac26a918bfebbbd72061f6b1b49f07736\r\nCREATE TABLE monthly_summary AS (     SELECT to_char(date, 'YYYYMM') AS month,         AVG(precipitation) AS average_precipitation,         AVG(snowfall) AS average_snowfall     FROM source_data     GROUP BY month     ORDER BY month ASC)\r\n"]
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+[52.76714687347434, "o", "\u001b[J"]
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+[73.97319304466308, "o", "Storing and indexing table rdu\r\n"]
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+[83.10947377204968, "o", "\u001b[1m\r\nStep 1/2 : FROM demo/weather:revised_data IMPORT rdu AS source_data\u001b[0m\r\n"]
+[83.11051780700757, "o", "Resolving repository demo/weather\r\n"]
+[83.1144898605354, "o", "Importing 1 table from demo/weather:1d93871b3473 into demo/summary\r\n"]
+[83.27724511146619, "o", " ---> 45e07cf144e3\r\n"]
+[83.27731019973828, "o", "\u001b[1m\r\nStep 2/2 : SQL {CREATE TABLE monthly_summary  AS SELECT to_char(dat...\u001b[0m\r\n"]
+[83.28235322952344, "o", "Executing SQL...\r\n"]
+[83.4856520366676, "o", "Committing demo/summary...\r\n"]
+[83.51082307815625, "o", "Processing table monthly_summary\r\n"]
+[83.60144836425854, "o", " ---> 7081af0eaff7\r\n"]
+[83.60519845008923, "o", "Successfully built demo/summary:7081af0eaff7.\r\n"]
+[83.82886869430615, "o", "Tagged demo/summary:7081af0eaff7409df34ea66c28fdc606e6119bc24dca5ff4025a38ff620dd632 with based_on_revised.\r\n"]
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+[89.10598312377991, "o", "\u001b[J"]
+[89.13598312377991, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Compare the two resultant datasets"]
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+[92.13598312378002, "o", "\r\n"]
+[92.49474252700878, "o", "Between 19ef8c62185e and 7081af0eaff7: \r\n"]
+[92.49506892204357, "o", "monthly_summary: added 12 rows, removed 12 rows.\r\n"]
+[92.49527873039318, "o", "- ('201201', Decimal('0.06322580645161290323'), Decimal('0E-20'))\r\n- ('201202', Decimal('0.06689655172413793103'), Decimal('0.03137931034482758621'))\r\n- ('201203', Decimal('0.17290322580645161290'), Decimal('0E-20'))\r\n- ('201204', Decimal('0.08766666666666666667'), Decimal('0E-20'))\r\n- ('201205', Decimal('0.12806451612903225806'), Decimal('0E-20'))\r\n- ('201206', Decimal('0.10333333333333333333'), Decimal('0E-20'))\r\n- ('201207', Decimal('0.14967741935483870968'), Decimal('0E-20'))\r\n- ('201208', Decimal('0.13"]
+[92.49528898239208, "o", "000000000000000000'), Decimal('0E-20'))\r\n- ('201209', Decimal('0.26100000000000000000'), Decimal('0E-20'))\r\n- ('201210', Decimal('0.05903225806451612903'), Decimal('0E-20'))\r\n- ('201211', Decimal('0.01866666666666666667'), Decimal('0E-20'))\r\n- ('201212', Decimal('0.09483870967741935484'), Decimal('0E-20'))\r\n"]
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+[92.49624408721996, "o", "600000000000000000'), Decimal('0E-20'))\r\n+ ('201209', Decimal('0.31320000000000000000'), Decimal('0E-20'))\r\n+ ('201210', Decimal('0.07083870967741935484'), Decimal('0E-20'))\r\n+ ('201211', Decimal('0.02240000000000000000'), Decimal('0E-20'))\r\n+ ('201212', Decimal('0.11380645161290322581'), Decimal('0E-20'))\r\n"]
+[92.52624408721996, "o", "\u001b[1m"]
+[92.55624408721997, "o", "\u001b[36m"]
+[92.58624408721997, "o", "\u001b[91m"]
+[92.61624408721997, "o", "$"]
+[92.64624408721997, "o", " "]
+[92.67624408721997, "o", "\u001b[0m"]
\ No newline at end of file
diff --git a/content/casts/versioned/latest/splitgraph-cloud.cast b/content/casts/versioned/latest/splitgraph-cloud.cast
index 45e91280..8aa7e0cb 100644
--- a/content/casts/versioned/latest/splitgraph-cloud.cast
+++ b/content/casts/versioned/latest/splitgraph-cloud.cast
@@ -1,4 +1,4 @@
-{"version": 2, "width": 100, "height": 23, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1597748328, "metadata": {"tss": [{"h": "Make sure you are registered and logged into Splitgraph Cloud.", "ts": 0.06}, {"h": "Ingest the weather dataset at Raleigh-Durham Airport", "ts": 8.849999999999994}, {"h": "Push the dataset to Splitgraph", "ts": 21.62112149238574}, {"h": "Upload some dataset metadata as well.", "ts": 29.986915845870882}, {"h": "Perform a request against an automatically-generated", "ts": 40.98691584587088}, {"h": "sgr also has a shorthand to access the query API", "ts": 50.124993133544976}, {"h": "You can also run a query against the Splitgraph Data Delivery Network.", "ts": 59.12499313354509}, {"h": "The query API also supports running one-off Splitfile commands against a repository,", "ts": 70.31499313354529}, {"h": "Run another command against the new layer to join the two datasets", "ts": 79.82652616500904}, {"h": "Pull the dataset and check out the new image", "ts": 89.42850766182009}, {"h": "Inspect the generated data", "ts": 102.6904395389564}]}}
+{"version": 2, "width": 100, "height": 23, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611574992, "metadata": {"tss": [{"h": "Make sure you are registered and logged into Splitgraph Cloud.", "ts": 0.06}, {"h": "Ingest the weather dataset at Raleigh-Durham Airport", "ts": 8.789909934997553}, {"h": "Push the dataset to Splitgraph", "ts": 20.930056419372423}, {"h": "Upload some dataset metadata as well.", "ts": 28.99604990005483}, {"h": "Perform a request against an automatically-generated", "ts": 39.99604990005483}, {"h": "sgr also has a shorthand to access the query API", "ts": 49.77604990005497}, {"h": "You can also run a query against the Splitgraph Data Delivery Network.", "ts": 58.50322132110611}, {"h": "The query API also supports running one-off Splitfile commands against a repository,", "ts": 69.69322132110631}, {"h": "Run another command against the new layer to join the two datasets", "ts": 79.20479822158862}, {"h": "Pull the dataset and check out the new image", "ts": 88.6680527687079}, {"h": "Inspect the generated data", "ts": 101.20601590156625}]}}
 [0.03, "o", "\u001b[H"]
 [0.06, "o", "\u001b[J"]
 [0.09, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Make sure you are registered and logged into Splitgraph Cloud."]
@@ -86,1254 +86,1255 @@
 [2.549999999999998, "o", "\r\n"]
 [2.579999999999998, "o", "\u001b[0m"]
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-[3.6099999999999977, "o", "splitgraph-demo\r\n"]
-[3.6399999999999975, "o", "\u001b[1m"]
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-[33.61926403045659, "o", "# This is a sample dataset metadata file that's used\r\n# to update the dataset's README and description.\r\n\r\nreadme: dataset-readme.md\r\ndescription: Weather history in Raleigh-Durham International airport joined with US domestic flights data (uploaded from Splitgraph release CI)\r\n"]
-[33.62072100639348, "o", "# Sample dataset README\r\n\r\nDataset of weather history in Raleigh-Durham International airport, joined with\r\n[US domestic flights data](/splitgraph/domestic_us_flights).\r\n\r\nThis dataset was uploaded from a CI job.\r\n\r\n## Source\r\n\r\n[data.gov](https://catalog.data.gov/dataset/local-weather-archive)\r\n"]
-[34.555804872512866, "o", "README updated for repository splitgraph-demo/weather.\r\n"]
-[34.935934448242236, "o", "Description updated for repository splitgraph-demo/weather.\r\n"]
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-[91.60007175445627, "o", "Gathering remote metadata...\r\n"]
-[92.60007175445627, "o", "Fetched metadata for 2 images, 5 tables, 2 objects and 2 tags.\r\n"]
-[93.07738884925912, "o", "Need to download 1 object (3.02 KiB), cache occupancy: 0.00 B/10.00 GiB\r\n"]
-[93.15105279922555, "o", "Fetching 1 object, total size 3.02 KiB\r\n"]
-[93.15386971473764, "o", "Getting download URLs from registry PostgresEngine data.splitgraph.com (ca446922b2844ed19f8e6c8b35edbe31@data.splitgraph.com:5432/sgregistry)...\r\n"]
-[94.15386971473764, "o", "\r  0%|                                                                                            | 0/1 [00:00<?, ?obj/s]"]
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-[95.15406927108835, "o", "\r\n"]
-[95.34580787658761, "o", "Need to download 1 object (1.62 KiB), cache occupancy: 3.02 KiB/10.00 GiB\r\n"]
-[95.40102466583322, "o", "Fetching 1 object, total size 1.62 KiB\r\n"]
-[95.40104493141244, "o", "Getting download URLs from registry PostgresEngine data.splitgraph.com (ca446922b2844ed19f8e6c8b35edbe31@data.splitgraph.com:5432/sgregistry)...\r\n"]
-[96.40104493141244, "o", "\r  0%|                                                                                            | 0/1 [00:00<?, ?obj/s]"]
-[97.40104493141244, "o", "\r  0%|                                                                      | 0/1 [00:01<?, ?obj/s, object=o59fed2924...]"]
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-[97.45043953895639, "o", "Checked out weather:5a9c3ce2159c.\r\n"]
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-[102.7204395389564, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Inspect the generated data"]
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+[90.6235977077491, "o", "Gathering remote metadata...\r\n"]
+[91.6235977077491, "o", "Fetched metadata for 2 images, 5 tables, 2 objects and 2 tags.\r\n"]
+[91.87509068489143, "o", "Need to download 1 object (3.02 KiB), cache occupancy: 0.00 B/10.00 GiB\r\n"]
+[91.92683943748543, "o", "Fetching 1 object, total size 3.02 KiB\r\n"]
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+[94.9069958591468, "o", "\r  0%|                                                                                            | 0/1 [00:00<?, ?obj/s]"]
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+[95.96601590156624, "o", "Checked out weather:44d77c4b152a.\r\n"]
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+[105.22023238182152, "o", "2007-01-01 00:00:00  34.9226  55.5355  691412\r\n2007-02-01 00:00:00  30.0679  51.5321  649756\r\n2007-03-01 00:00:00  42.1613  69.5419  813207\r\n2007-04-01 00:00:00  47.5933  72.2433  829201\r\n2007-05-01 00:00:00  56.0419  80.2871  862228\r\n2007-06-01 00:00:00  65.36    87.63    909455\r\n2007-07-01 00:00:00  67.2323  89.929   916340\r\n2007-08-01 00:00:00  72.2258  96.0226  910786\r\n2007-09-01 00:00:00  62.64    87.4333  759830\r\n2007-10-01 00:00:00  55.5226  79.2839  855872\r\n"]
+[105.25023238182152, "o", "\u001b[1m"]
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+[105.40023238182152, "o", "\u001b[0m"]
\ No newline at end of file
diff --git a/content/casts/versioned/latest/us-election.cast b/content/casts/versioned/latest/us-election.cast
index 7137908a..09420377 100644
--- a/content/casts/versioned/latest/us-election.cast
+++ b/content/casts/versioned/latest/us-election.cast
@@ -1,4 +1,4 @@
-{"version": 2, "width": 100, "height": 57, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1597748398, "metadata": {"tss": [{"h": "This example will use Splitgraph to build a dataset that correlates, for every US county,", "ts": 0.06}, {"h": "Now, build the dataset: the Splitgraph engine will automatically download the required data", "ts": 28.060000000000002}, {"h": "Inspect the dataset metadata", "ts": 44.297974138259974}, {"h": "Get the data for New York County (FIPS 36061)", "ts": 61.797974138259974}, {"h": "Do a quick analysis of the dataset.", "ts": 71.3052867507937}]}}
+{"version": 2, "width": 100, "height": 57, "env": {"TERM": "xterm-256color", "SHELL": "/bin/zsh"}, "timestamp": 1611575046, "metadata": {"tss": [{"h": "This example will use Splitgraph to build a dataset that correlates, for every US county,", "ts": 0.06}, {"h": "Now, build the dataset: the Splitgraph engine will automatically download the required data", "ts": 28.060000000000002}, {"h": "Inspect the dataset metadata", "ts": 44.06}, {"h": "Get the data for New York County (FIPS 36061)", "ts": 57.56}, {"h": "Do a quick analysis of the dataset.", "ts": 66.85702814102189}]}}
 [0.03, "o", "\u001b[H"]
 [0.06, "o", "\u001b[J"]
 [0.09, "o", "\u001b[1m\u001b[36m\u001b[91m$ # This example will use Splitgraph to build a dataset that correlates, for every US county,"]
@@ -43,17 +43,16 @@
 [1.260000000000001, "o", "\r\n"]
 [1.290000000000001, "o", "\u001b[0m"]
 [1.320000000000001, "o", "\r\n"]
-[1.3209126663208017, "o", "# See the README for data sources.\r\n\r\n# Calculate the number of Census tracts in each county and fraction of QOZ-eligible tracts.\r\n\r\nSQL {\r\n    CREATE TABLE qoz_tract_fraction AS\r\n        WITH county_tracts AS (SELECT\r\n                COUNT(*) AS total_tract_count,\r\n                substring(lpad(\"TractId\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/census:latest\".acs2017_census_tract_data\r\n            GROUP BY county_id\r\n        ), qoz_tracts AS (SELECT\r\n                COUNT(*"]
-[1.3209565353393564, "o", ") AS qoz_tract_count,\r\n                substring(lpad(\"Census Tract Number\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/qoz:latest\".qoz\r\n            GROUP BY county_id\r\n        )\r\n    SELECT\r\n        c.county_id AS county_id,\r\n        COALESCE(q.qoz_tract_count::numeric, 0.0) / total_tract_count AS qoz_tract_fraction\r\n    FROM qoz_tracts q JOIN county_tracts c\r\n        ON q.county_id = c.county_id\r\n}\r\n\r\n# Summarize the Trump/Clinton vote fraction in each county.\r\n\r\nFROM splitgra"]
-[1.3209636878967295, "o", "ph/2016_election IMPORT {\r\n"]
-[1.3221309852600107, "o", "    SELECT lpad(county_fips::TEXT, 5, '0') AS county_id,\r\n        SUM(CASE WHEN candidate_normalized = 'trump' THEN votes ELSE 0 END) / SUM(votes)\r\n            AS trump_vote_fraction,\r\n        SUM(CASE WHEN candidate_normalized = 'clinton' THEN votes ELSE 0 END) / SUM(votes)\r\n            AS clinton_vote_fraction,\r\n    SUM(votes) AS total_votes\r\n    FROM precinct_results\r\n    GROUP BY county_id\r\n} AS vote_fraction\r\n\r\n# Create the final table: join the fraction of QOZ-eligible tracts in every county\r\n# with t"]
-[1.3224161338806162, "o", "he vote fraction for each candidate.\r\n\r\nSQL { CREATE TABLE qoz_vote_fraction AS\r\n    SELECT\r\n        v.county_id, COALESCE(qoz_tract_fraction, 0) AS qoz_tract_fraction,\r\n        trump_vote_fraction, clinton_vote_fraction, total_votes\r\n    FROM vote_fraction v\r\n    LEFT JOIN qoz_tract_fraction q ON q.county_id = v.county_id\r\n    WHERE v.county_id IS NOT NULL;\r\n    ALTER TABLE qoz_vote_fraction ADD PRIMARY KEY (county_id);\r\n}\r\n"]
-[1.3524161338806162, "o", "\u001b[1m"]
-[1.3824161338806162, "o", "\u001b[36m"]
-[1.4124161338806163, "o", "\u001b[91m"]
-[1.4424161338806163, "o", "$"]
-[1.4724161338806163, "o", " "]
-[1.5024161338806163, "o", "\u001b[0m"]
+[1.3212943744659433, "o", "# See the README for data sources.\r\n\r\n# Calculate the number of Census tracts in each county and fraction of QOZ-eligible tracts.\r\n\r\nSQL {\r\n    CREATE TABLE qoz_tract_fraction AS\r\n        WITH county_tracts AS (SELECT\r\n                COUNT(*) AS total_tract_count,\r\n                substring(lpad(\"TractId\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/census:latest\".acs2017_census_tract_data\r\n            GROUP BY county_id\r\n        ), qoz_tracts AS (SELECT\r\n                COUNT(*"]
+[1.3213020038604746, "o", ") AS qoz_tract_count,\r\n                substring(lpad(\"Census Tract Number\"::text, 11, '0') from 0 for 6) AS county_id\r\n            FROM \"splitgraph/qoz:latest\".qoz\r\n            GROUP BY county_id\r\n        )\r\n    SELECT\r\n        c.county_id AS county_id,\r\n        COALESCE(q.qoz_tract_count::numeric, 0.0) / total_tract_count AS qoz_tract_fraction\r\n    FROM qoz_tracts q JOIN county_tracts c\r\n        ON q.county_id = c.county_id\r\n}\r\n\r\n# Summarize the Trump/Clinton vote fraction in each county.\r\n\r\nFROM splitgra"]
+[1.3213070106506357, "o", "ph/2016_election IMPORT {\r\n    SELECT lpad(county_fips::TEXT, 5, '0') AS county_id,\r\n        SUM(CASE WHEN candidate_normalized = 'trump' THEN votes ELSE 0 END) / SUM(votes)\r\n            AS trump_vote_fraction,\r\n        SUM(CASE WHEN candidate_normalized = 'clinton' THEN votes ELSE 0 END) / SUM(votes)\r\n            AS clinton_vote_fraction,\r\n    SUM(votes) AS total_votes\r\n    FROM precinct_results\r\n    GROUP BY county_id\r\n} AS vote_fraction\r\n\r\n# Create the final table: join the fraction of QOZ-eligible tract"]
+[1.3213155937194834, "o", "s in every county\r\n# with the vote fraction for each candidate.\r\n\r\nSQL { CREATE TABLE qoz_vote_fraction AS\r\n    SELECT\r\n        v.county_id, COALESCE(qoz_tract_fraction, 0) AS qoz_tract_fraction,\r\n        trump_vote_fraction, clinton_vote_fraction, total_votes\r\n    FROM vote_fraction v\r\n    LEFT JOIN qoz_tract_fraction q ON q.county_id = v.county_id\r\n    WHERE v.county_id IS NOT NULL;\r\n    ALTER TABLE qoz_vote_fraction ADD PRIMARY KEY (county_id);\r\n}\r\n"]
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 [28.090000000000003, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Now, build the dataset: the Splitgraph engine will automatically download the required data"]
@@ -122,326 +121,323 @@
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-[30.45435599327095, "o", "Executing Splitfile qoz_vote_fraction.splitfile with arguments {}\r\n"]
-[30.483504095077592, "o", "\u001b[1m\r\nStep 1/3 : SQL {    CREATE TABLE qoz_tract_fraction AS        WITH...\u001b[0m\r\n"]
-[30.503791370391923, "o", "Resolving repository splitgraph/census\r\n"]
-[31.503791370391923, "o", "Gathering remote metadata...\r\n"]
-[32.50379137039192, "o", "Fetched metadata for 2 images, 1 table, 1 object and 0 tags.\r\n"]
-[32.51484135627754, "o", "Resolving repository splitgraph/qoz\r\n"]
-[33.445560731887895, "o", "Gathering remote metadata...\r\n"]
-[34.445560731887895, "o", "Fetched metadata for 2 images, 1 table, 1 object and 0 tags.\r\n"]
-[34.46389822006233, "o", "Executing SQL...\r\n"]
-[35.46389822006233, "o", "Committing qoz_vote_fraction...\r\n"]
-[35.489591159820634, "o", "Processing table qoz_tract_fraction\r\n"]
-[35.61367920875557, "o", " ---> 4a832e4a1b62\r\n"]
-[35.61369279861458, "o", "\u001b[1m\r\nStep 2/3 : FROM splitgraph/2016_election IMPORT {    SELECT lpad(co...\u001b[0m\r\n"]
-[35.61482075691231, "o", "Resolving repository splitgraph/2016_election\r\n"]
-[36.52996210098274, "o", "Gathering remote metadata...\r\n"]
-[37.52996210098274, "o", "Fetched metadata for 1 image, 1 table, 20 objects and 1 tag.\r\n"]
-[37.545735635757524, "o", "Importing 1 table from splitgraph/2016_election:3835145ada3f into qoz_vote_fraction\r\n"]
-[38.545735635757524, "o", "Processing table sg_tmp_46e805a8551b00798648b3882a7e5053\r\n"]
-[38.86737278938301, "o", " ---> 105f0cc16f07\r\n"]
-[38.87128428459175, "o", "\u001b[1m\r\nStep 3/3 : SQL { CREATE TABLE qoz_vote_fraction AS    SELECT      ...\u001b[0m\r\n"]
-[38.88304118156441, "o", "Executing SQL...\r\n"]
-[38.89689258575447, "o", "Committing qoz_vote_fraction...\r\n"]
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-[47.16032668113726, "o", " CREATE TABLE qoz_vote_fraction AS\r\n    SELECT\r\n        v.county_id, COALESCE(qoz_tract_fraction, 0) AS qoz_tract_fraction,\r\n        trump_vote_fraction, clinton_vote_fraction, total_votes\r\n    FROM vote_fraction v\r\n    LEFT JOIN qoz_tract_fraction q ON q.county_id = v.county_id\r\n    WHERE v.county_id IS NOT NULL;\r\n    ALTER TABLE qoz_vote_fraction ADD PRIMARY KEY (county_id);\r\n\r\nCreated at 2020-08-18T11:00:30.203548\r\n"]
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-[47.16324707031268, "o", "  qoz_vote_fraction\r\n  vote_fraction\r\n"]
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-[47.61060567855853, "o", "Rows: 3114\r\n"]
-[47.61063095092791, "o", "Columns: \r\n  county_id (text, PK)\r\n  qoz_tract_fraction (numeric)\r\n  trump_vote_fraction (numeric)\r\n  clinton_vote_fraction (numeric)\r\n  total_votes (numeric)\r\n\r\nObjects: \r\n"]
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-[66.06528675079369, "o", "{'county_id': '36061', 'qoz_tract_fraction': 0.125, 'trump_vote_fraction': 0.08865095716546313, 'clinton_vote_fraction': 0.7905445350569275, 'total_votes': 732423}\r\n"]
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-[71.3352867507937, "o", "\u001b[1m\u001b[36m\u001b[91m$ # Do a quick analysis of the dataset."]
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-[72.53722747802763, "o", "import scipy.stats as ss\r\n\r\nfrom splitgraph.core.repository import Repository\r\nfrom splitgraph.ingestion.pandas import sql_to_df\r\n\r\n# Load the dataset we created into Pandas\r\nimage = Repository(\"\", \"qoz_vote_fraction\").images[\"latest\"]\r\ndf = sql_to_df(\"SELECT * FROM qoz_vote_fraction\", image=image, use_lq=True)\r\nprint(df)\r\n\r\n# Is there a correlation between the Trump vote fraction and the fraction of\r\n# QOZ-qualified tracts in every county?\r\nprint(ss.linregress(df[\"trump_vote_fraction\"], df[\"qoz_tract_fract"]
-[72.53732570648222, "o", "ion\"]))\r\n"]
-[73.53732570648222, "o", "     county_id  qoz_tract_fraction  trump_vote_fraction  clinton_vote_fraction  total_votes\r\n0        01001            0.083333             0.491135               0.160432      37000.0\r\n1        01003            0.187500             0.496056               0.125629     146925.0\r\n2        01005            0.111111             0.330305               0.294998      16512.0\r\n3        01007            0.250000             0.485132               0.134927      13889.0\r\n4        01009            0.111111             "]
-[73.53733643531828, "o", "0.588017               0.055430      38788.0\r\n...        ...                 ...                  ...                    ...          ...\r\n3109     56037            0.083333             0.709515               0.188616      17130.0\r\n3110     56039            0.000000             0.310525               0.579235      12627.0\r\n3111     56041            0.333333             0.726564               0.141913       8470.0\r\n3112     56043            0.333333             0.763241               0.139486       3814.0\r\n3"]
-[73.53734954834013, "o", "113     56045            0.000000             0.860182               0.084799       3526.0\r\n\r\n[3114 rows x 5 columns]\r\n"]
-[73.54014476776152, "o", "LinregressResult(slope=-0.06217947076052383, intercept=0.1781160377798594, rvalue=-0.05782420568050623, pvalue=0.0012457930627282692, stderr=0.019243775109388402)\r\n"]
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\ No newline at end of file
+[30.254771986007768, "o", "Executing Splitfile qoz_vote_fraction.splitfile with arguments {}\r\n"]
+[30.286094465255815, "o", "\u001b[1m\r\nStep 1/3 : SQL {    CREATE TABLE qoz_tract_fraction AS        WITH...\u001b[0m\r\n"]
+[30.305707254409867, "o", "Resolving repository splitgraph/census\r\n"]
+[31.031320371627885, "o", "Gathering remote metadata...\r\n"]
+[32.031320371627885, "o", "Fetched metadata for 2 images, 1 table, 1 object and 0 tags.\r\n"]
+[32.044008054733354, "o", "Resolving repository splitgraph/qoz\r\n"]
+[32.69299940109261, "o", "Gathering remote metadata...\r\n"]
+[33.69299940109261, "o", "Fetched metadata for 2 images, 1 table, 1 object and 0 tags.\r\n"]
+[33.7113283061982, "o", "Executing SQL...\r\n"]
+[34.7113283061982, "o", "Committing qoz_vote_fraction...\r\n"]
+[34.736406602859574, "o", "Processing table qoz_tract_fraction\r\n"]
+[34.85232070922859, "o", " ---> 4a832e4a1b62\r\n"]
+[34.85235337257393, "o", "\u001b[1m\r\nStep 2/3 : FROM splitgraph/2016_election IMPORT {    SELECT lpad(co...\u001b[0m\r\n"]
+[34.85347322463997, "o", "Resolving repository splitgraph/2016_election\r\n"]
+[35.487221040725785, "o", "Gathering remote metadata...\r\n"]
+[36.487221040725785, "o", "Fetched metadata for 1 image, 1 table, 20 objects and 1 tag.\r\n"]
+[36.50134018898018, "o", "Importing 1 table from splitgraph/2016_election:3835145ada3f into qoz_vote_fraction\r\n"]
+[37.50134018898018, "o", "Processing table sg_tmp_83b6831865e981082ee91e542583fad9\r\n"]
+[37.81129054069527, "o", " ---> 105f0cc16f07\r\n"]
+[37.81523565292366, "o", "\u001b[1m\r\nStep 3/3 : SQL { CREATE TABLE qoz_vote_fraction AS    SELECT      ...\u001b[0m\r\n"]
+[37.826480903625566, "o", "Executing SQL...\r\n"]
+[37.84089020729073, "o", "Committing qoz_vote_fraction...\r\n"]
+[37.87096027374275, "o", "Processing table qoz_vote_fraction\r\n"]
+[37.991761960983354, "o", " ---> 2fd53f55d05e\r\n"]
+[37.996238269805986, "o", "Successfully built qoz_vote_fraction:2fd53f55d05e.\r\n"]
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+        {
+          "id": 24722695,
+          "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/24722695",
+          "name": "sgr-docs-bin.tar.gz",
+          "label": "",
+          "created_at": "2020-09-02T08:47:33Z",
+          "updated_at": "2020-09-02T08:47:34Z",
+          "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.1/sgr-docs-bin.tar.gz"
+        }
+      ]
+    },
     {
       "id": 29809771,
       "tag_name": "v0.2.0",
       "target_commitish": "fc2111a585b03d322ce4207e385470d6746e4292",
-      "created_at": "2020-08-18T10:20:14Z",
+      "created_at": "2020-08-25T12:21:08Z",
       "published_at": "2020-08-18T11:16:01Z",
       "assets": [
         {
diff --git a/content/docs/1000_configuration/0100_config-flag-reference.mdx b/content/docs/1000_configuration/0100_config-flag-reference.mdx
index eda5c882..208d4749 100644
--- a/content/docs/1000_configuration/0100_config-flag-reference.mdx
+++ b/content/docs/1000_configuration/0100_config-flag-reference.mdx
@@ -147,3 +147,19 @@ Name of the class used by the layered querying foreign data wrapper on the engin
 Set to `true` to disable Unicode output in sgr. Note that `sgr sql` will still output Unicode data.  
 **Default**: `false`
 
+### `SG_UPDATE_REMOTE`
+Name of the Splitgraph registry to check for sgr updates.  
+**Default**: `data.splitgraph.com`
+
+### `SG_UPDATE_FREQUENCY`
+How often to check for updates when sgr is run, in seconds. Set to 0 to disable.  
+**Default**: `86400`
+
+### `SG_UPDATE_LAST`
+Last timestamp an update check was performed. Internal.  
+**Default**: `0`
+
+### `SG_UPDATE_ANONYMOUS`
+Set to `true` to disable sending the user's ID to the update checker.  
+**Default**: `false`
+
diff --git a/content/docs/9000_sgr/0003_data-import-export/0003_singer-target.mdx b/content/docs/9000_sgr/0003_data-import-export/0003_singer-target.mdx
new file mode 100644
index 00000000..c353a781
--- /dev/null
+++ b/content/docs/9000_sgr/0003_data-import-export/0003_singer-target.mdx
@@ -0,0 +1,23 @@
+export const meta = {id: "singer-target", title: "sgr singer target", sidebarTitle: "singer target", description: "Singer target that loads data into Splitgraph images."};
+
+```sgr singer target [OPTIONS] IMAGE```
+
+Singer target that loads data into Splitgraph images.
+
+This will read data from the stdin from a Singer-compatible tap and load it into
+a Splitgraph image, merging data if the image already exists.
+
+Image must be of the format `[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]` where `HASH_OR_TAG`
+is a tag of an existing image to base the image on. If the repository doesn't exist,
+it will be created.
+
+As this target consumes data from stdin, it will flush the records into a Splitgraph image. By
+default, it will only keep the image if the whole stream has been successfully consumed. To
+make this target completely follow the Singer spec (if it emits state, the records have been
+flushed), pass --failure=keep-both or --failure=delete-old. To delete the old image on success,
+pass --delete-old.
+
+### Options
+
+  * **`-d, --delete-old`**: Delete the old image at the end of ingestion
+  * **`-f, --failure [keep-both|delete-old|delete-new]`**: What to do in case of a failure.
diff --git a/content/docs/9000_sgr/0007_splitgraph-cloud/0000_cloud-register.mdx b/content/docs/9000_sgr/0007_splitgraph-cloud/0000_cloud-register.mdx
index ea0bf109..089ce0c6 100644
--- a/content/docs/9000_sgr/0007_splitgraph-cloud/0000_cloud-register.mdx
+++ b/content/docs/9000_sgr/0007_splitgraph-cloud/0000_cloud-register.mdx
@@ -15,3 +15,4 @@ with the registry and configures the data.splitgraph.com engine.
   * **`--email TEXT`**: 
   * **`--remote TEXT`**: Name of the remote registry to register on.
   * **`--accept-tos`**: Accept the registry's Terms of Service
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/0007_splitgraph-cloud/0001_cloud-login.mdx b/content/docs/9000_sgr/0007_splitgraph-cloud/0001_cloud-login.mdx
index 23b1834b..cb99d6c1 100644
--- a/content/docs/9000_sgr/0007_splitgraph-cloud/0001_cloud-login.mdx
+++ b/content/docs/9000_sgr/0007_splitgraph-cloud/0001_cloud-login.mdx
@@ -20,3 +20,4 @@ If you want to log in using an existing API key pair, use `sgr cloud login-api`
   * **`--password TEXT`**: 
   * **`--remote TEXT`**: Name of the remote registry to log into.
   * **`--overwrite`**: Overwrite old API keys in the config if they exist
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/0007_splitgraph-cloud/0002_cloud-login-api.mdx b/content/docs/9000_sgr/0007_splitgraph-cloud/0002_cloud-login-api.mdx
index f25c07b2..4007fe22 100644
--- a/content/docs/9000_sgr/0007_splitgraph-cloud/0002_cloud-login-api.mdx
+++ b/content/docs/9000_sgr/0007_splitgraph-cloud/0002_cloud-login-api.mdx
@@ -12,3 +12,4 @@ and generate a new access token.
   * **`--api-key TEXT`**: 
   * **`--api-secret TEXT`**: 
   * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/0007_splitgraph-cloud/0007_cloud-metadata.mdx b/content/docs/9000_sgr/0007_splitgraph-cloud/0007_cloud-metadata.mdx
index c9691e3b..6f203833 100644
--- a/content/docs/9000_sgr/0007_splitgraph-cloud/0007_cloud-metadata.mdx
+++ b/content/docs/9000_sgr/0007_splitgraph-cloud/0007_cloud-metadata.mdx
@@ -4,13 +4,19 @@ export const meta = {id: "cloud-metadata", title: "sgr cloud metadata", sidebarT
 
 Upload a metadata file to a Splitgraph repository.
 
-    The metadata file should be in YAML format and have two keys: `readme` and `description`.
+This can manipulate the repository's short description, README and topics.
 
-    For example:
+The metadata file must be a YAML file with the keys `readme`, `description` and `topics`. Omitting a key doesn't delete the value.
 
+For example:
+
+
 ```
 readme: dataset-readme.md
 description: Dataset description (160 characters max).
+topics:
+  - topic_1
+  - topic_2
 ```
     
 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.0/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.0/metadata.json
index fc65d44e..476033f5 100644
--- a/content/docs/9000_sgr/9000_versions/v0.2.0/metadata.json
+++ b/content/docs/9000_sgr/9000_versions/v0.2.0/metadata.json
@@ -1,11 +1,11 @@
 {
   "title": "v0.2.0",
-  "updated_at": "2020-08-19T12:21:49.037Z",
+  "updated_at": "2021-01-26T14:48:02.048Z",
   "release": {
     "id": 29809771,
     "tag_name": "v0.2.0",
     "target_commitish": "fc2111a585b03d322ce4207e385470d6746e4292",
-    "created_at": "2020-08-18T10:20:14Z",
+    "created_at": "2020-08-25T12:21:08Z",
     "published_at": "2020-08-18T11:16:01Z",
     "assets": [
       {
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0000_checkout.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0000_checkout.mdx
new file mode 100644
index 00000000..cc805a26
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0000_checkout.mdx
@@ -0,0 +1,30 @@
+export const meta = {id: "checkout", title: "sgr checkout", sidebarTitle: "checkout", description: "Check out a Splitgraph image into a Postgres schema."};
+
+```sgr checkout [OPTIONS] IMAGE_SPEC```
+
+Check out a Splitgraph image into a Postgres schema.
+
+This downloads the required physical objects and materializes all tables, unless ``-l`` or ``--layered`` is passed,
+in which case the objects are downloaded and a foreign data wrapper is set up on the engine to satisfy read-only
+queries by combining results from each table's fragments.
+
+Tables checked out in this way are still presented as normal Postgres tables and can queried in the same way.
+Since the tables aren't materialized, layered querying is faster to set up, but since each query now results in a
+subquery to each object comprising the table, actual query execution is slower than to materialized Postgres tables.
+
+Layered querying is only supported for read-only queries.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. Note that currently, the schema that the
+image is checked out into has to have the same name as the repository. If no image hash or tag is passed,
+"HEAD" is assumed.
+
+If ``-u`` or ``--uncheckout`` is passed, this instead deletes the checked out schema (assuming there are no pending
+changes) and removes the HEAD pointer.
+
+If ``--force`` isn't passed and the schema has pending changes, this will fail.
+
+### Options
+
+  * **`-f, --force`**: Discard all pending changes to the schema
+  * **`-u, --uncheckout`**: Delete the checked out copy instead
+  * **`-l, --layered`**: Don't materialize the tables, use layered querying instead.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0001_commit.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0001_commit.mdx
new file mode 100644
index 00000000..9a2ec1f1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0001_commit.mdx
@@ -0,0 +1,59 @@
+export const meta = {id: "commit", title: "sgr commit", sidebarTitle: "commit", description: "Commit changes to a checked-out Splitgraph repository."};
+
+```sgr commit [OPTIONS] REPOSITORY```
+
+Commit changes to a checked-out Splitgraph repository.
+
+This packages up all changes into a new image. Where a table hasn't been created or had its schema changed,
+this will delta compress the changes. For all other tables (or if ``-s`` has been passed), this will
+store them as full table snapshots.
+
+When a table is stored as a full snapshot, `--chunk-size` sets the maximum size, in rows, of the fragments
+that the table will be split into (default is no splitting). The splitting is done by the
+table's primary key.
+
+If `--split-changesets` is passed, delta-compressed changes will also be split up according to the original
+table chunk boundaries. For example, if there's a change to the first and the 20000th row of a table that was
+originally committed with `--chunk-size=10000`, this will create 2 fragments: one based on the first chunk
+and one on the second chunk of the table.
+
+If `--chunk-sort-keys` is passed, data inside the chunk is sorted by this key (or multiple keys).
+This helps speed up queries on those keys for storage layers than can leverage that (e.g. CStore). The expected format is JSON, e.g. `{table_1: [col_1, col_2]}`
+
+`--index-options` expects a JSON-serialized dictionary of `{table: index_type: column: index_specific_kwargs}`.
+Indexes are used to narrow down the amount of chunks to scan through when running a query. By default, each column
+has a range index (minimum and maximum values) and it's possible to add bloom filtering to speed up queries that
+involve equalities.
+
+Bloom filtering allows to trade off between the space overhead of the index and the probability of a false
+positive (claiming that an object contains a record when it actually doesn't, leading to extra scans).
+
+An example `index-options` dictionary:
+
+
+```
+{
+    "table": {
+        "bloom": {
+            "column_1": {
+                "probability": 0.01,   # Only one of probability
+                "size": 10000          # or size can be specified.
+            }
+        },
+        # Only compute the range index on these columns. By default,
+        # it's computed on all columns and is always computed on the
+        # primary key no matter what.
+        "range": ["column_2", "column_3"]
+    }
+}
+```
+
+### Options
+
+  * **`-s, --snap`**: Do not delta compress the changes and instead store the whole table again. This consumes more space, but makes checkouts faster.
+  * **`-c, --chunk-size INTEGER`**: Split new tables into chunks of this many rows (by primary key). The default value is governed by the SG_COMMIT_CHUNK_SIZE configuration parameter.
+  * **`-k, --chunk-sort-keys JSON`**: Sort the data inside each chunk by this/these key(s)
+  * **`-t, --split-changesets`**: Split changesets for existing tables across original chunk boundaries.
+  * **`-i, --index-options JSON`**: JSON dictionary of extra indexes to calculate on the new objects.
+  * **`-m, --message TEXT`**: Optional commit message
+  * **`-o, --overwrite`**: Overwrite physical objects that already exist
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0002_tag.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0002_tag.mdx
new file mode 100644
index 00000000..89f01837
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0002_tag.mdx
@@ -0,0 +1,36 @@
+export const meta = {id: "tag", title: "sgr tag", sidebarTitle: "tag", description: "Manage tags on images."};
+
+```sgr tag [OPTIONS] IMAGE_SPEC [TAG]```
+
+Manage tags on images.
+
+Depending on the exact invocation, this command can tag a Splitgraph image,
+list all tags in a repository or delete a tag.
+
+### Examples
+
+``sgr tag noaa/climate``
+
+List all tagged images in the ``noaa/climate`` repository and their tags.
+
+``sgr tag noaa/climate:abcdef1234567890``
+
+List all tags assigned to the image ``noaa/climate:abcdef1234567890...``
+
+``sgr tag noaa/climate:abcdef1234567890 my_new_tag``
+
+Tag the image ``noaa/climate:abcdef1234567890...`` with ``my_new_tag``. If the tag already exists, this will
+overwrite the tag.
+
+``sgr tag noaa/climate my_new_tag``
+
+Tag the current ``HEAD`` of ``noaa/climate`` with ``my_new_tag``.
+
+``sgr tag --delete noaa/climate:my_new_tag``
+
+Delete the tag ``my_new_tag`` from ``noaa/climate``.
+
+### Options
+
+  * **`-d, --delete`**: Delete the tag instead.
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0003_import.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0003_import.mdx
new file mode 100644
index 00000000..b69bbfb4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0003_import.mdx
@@ -0,0 +1,32 @@
+export const meta = {id: "import", title: "sgr import", sidebarTitle: "import", description: "Import tables into a Splitgraph repository."};
+
+```sgr import [OPTIONS] IMAGE_SPEC TABLE_OR_QUERY TARGET_REPOSITORY [TARGET_TABLE]```
+
+Import tables into a Splitgraph repository.
+
+Imports a table or a result of a query from a local Splitgraph repository or a Postgres schema into another
+Splitgraph repository.
+
+### Examples
+
+``sgr import noaa/climate:my_tag climate_data my/repository``
+
+Create a new image in ``my/repository`` with the ``climate_data`` table included. This links the new image to
+the physical object, meaning that the history of the ``climate_data`` table is preserved.
+
+If no tag is specified, the 'latest' (not the HEAD image or current state of the checked out image)
+image is used.
+
+``sgr import noaa/climate:my_tag "SELECT * FROM climate_data" my/repository climate_data``
+
+Create a new image in ``my/repository`` with the result of the query stored in the ``climate_data`` table. This
+creates a new physical object without any linkage to the original data, so the history of the ``climate_data``
+table isn't preserved. The SQL query can interact with multiple tables in the source image.
+
+``sgr import other_schema other_table my/repository``
+
+Since other_schema isn't a Splitgraph repository, this will copy ``other_schema.other_table``
+into a new Splitgraph object and add the ``other_table`` table to a new image in ``my/repository``.
+
+Note that importing doesn't discard or commit pending changes in the target Splitgraph repository: a new image
+is created with the new table added, the new table is materialized in the repository and the HEAD pointer is moved.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0004_reindex.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0004_reindex.mdx
new file mode 100644
index 00000000..b640ffe3
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/0004_reindex.mdx
@@ -0,0 +1,19 @@
+export const meta = {id: "reindex", title: "sgr reindex", sidebarTitle: "reindex", description: "Run extra indexes on a table."};
+
+```sgr reindex [OPTIONS] IMAGE_SPEC TABLE_NAME```
+
+Run extra indexes on a table. This will merge the indexing results for all objects
+that a table is formed from with the current object indexes. For explanation of
+what indexes do, see the documentation for `sgr commit`.
+
+If the objects haven't been downloaded yet, this will download them.
+
+Currently reindexing objects that change other objects is unsupported and will raise
+an error. Pass `-o` to ignore these objects and only reindex supported objects.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-i, --index-options JSON`**: JSON dictionary of extra indexes to calculate, e.g. '{"bloom": {"column_1": {"probability": 0.01}}}'  [required]
+  * **`-o, --ignore-patch-objects`**: Ignore objects that change other objects' rows instead of raising an error
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/metadata.json
new file mode 100644
index 00000000..9ef75b16
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0000_image-management-creation/metadata.json
@@ -0,0 +1 @@
+{"title": "Image management/creation"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0000_log.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0000_log.mdx
new file mode 100644
index 00000000..db5078b4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0000_log.mdx
@@ -0,0 +1,18 @@
+export const meta = {id: "log", title: "sgr log", sidebarTitle: "log", description: "Show the history of a Splitgraph repository/image."};
+
+```sgr log [OPTIONS] IMAGE_SPEC```
+
+Show the history of a Splitgraph repository/image.
+
+By default, this shows the history of the current branch, starting from the HEAD pointer and following its
+parent chain.
+
+Alternatively, it can follow the parent chain of any other image.
+
+If ``-t`` or ``--tree`` is passed, this instead renders the full image tree. The repository doesn't need to have
+been checked out in this case.
+
+### Options
+
+  * **`-t, --tree`**: 
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0001_diff.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0001_diff.mdx
new file mode 100644
index 00000000..8ef569e8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0001_diff.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "diff", title: "sgr diff", sidebarTitle: "diff", description: "Show differences between two Splitgraph images."};
+
+```sgr diff [OPTIONS] REPOSITORY [TAG_OR_HASH_1] [TAG_OR_HASH_2]```
+
+Show differences between two Splitgraph images.
+
+The two images must be in the same repository. The actual targets of this command depend
+on the number of arguments passed:
+
+``sgr diff REPOSITORY``
+
+Return the differences between the current HEAD image and the checked out schema.
+
+``sgr diff REPOSITORY TAG_OR_HASH``
+
+Return the differences between the image and its parent.
+
+``sgr diff REPOSITORY TAG_OR_HASH_1 TAG_OR_HASH_2``
+
+Return the differences from the first (earlier) image to the second image.
+
+### Options
+
+  * **`-v, --verbose`**: Include the actual differences rather than just the total number of updated rows.
+  * **`-t, --table-name TEXT`**: Show the differences for a single table.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0002_object.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0002_object.mdx
new file mode 100644
index 00000000..ff8c38a9
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0002_object.mdx
@@ -0,0 +1,14 @@
+export const meta = {id: "object", title: "sgr object", sidebarTitle: "object", description: "Show information about a Splitgraph object."};
+
+```sgr object [OPTIONS] OBJECT_ID```
+
+Show information about a Splitgraph object.
+
+Objects, or fragments, are building blocks of Splitgraph tables: each table consists of multiple immutable fragments
+that can partially overwrite each other. Each fragment might have a parent that it depends on. In addition,
+the smallest and largest values for every column are stored in the fragment's metadata. This information is used
+to choose which objects to download in order to execute a query against a table.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0003_objects.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0003_objects.mdx
new file mode 100644
index 00000000..c56fa727
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0003_objects.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "objects", title: "sgr objects", sidebarTitle: "objects", description: "List objects known to this engine."};
+
+```sgr objects [OPTIONS] ```
+
+List objects known to this engine.
+
+### Options
+
+  * **`--local`**: Show only objects that are physically present on this engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0004_show.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0004_show.mdx
new file mode 100644
index 00000000..4ddcc55d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0004_show.mdx
@@ -0,0 +1,14 @@
+export const meta = {id: "show", title: "sgr show", sidebarTitle: "show", description: "Show information about a Splitgraph image."};
+
+```sgr show [OPTIONS] IMAGE_SPEC```
+
+Show information about a Splitgraph image. This includes its parent, comment, size and creation time.
+
+Note that the size isn't the on-disk footprint, as the image might share some objects with other images
+or if some of the image's objects have not been downloaded.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0005_table.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0005_table.mdx
new file mode 100644
index 00000000..cc681c85
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0005_table.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "table", title: "sgr table", sidebarTitle: "table", description: "Show information about a table in a Splitgraph image."};
+
+```sgr table [OPTIONS] IMAGE_SPEC TABLE_NAME```
+
+Show information about a table in a Splitgraph image.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-v, --verbose`**: Show all of table's objects.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0006_sql.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0006_sql.mdx
new file mode 100644
index 00000000..ea8a304b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0006_sql.mdx
@@ -0,0 +1,34 @@
+export const meta = {id: "sql", title: "sgr sql", sidebarTitle: "sql", description: "Run an SQL statement against the Splitgraph engine."};
+
+```sgr sql [OPTIONS] SQL```
+
+Run an SQL statement against the Splitgraph engine.
+
+There are no restrictions on the contents of the statement: this is the same as running it
+from any other PostgreSQL client.
+
+If ``--schema`` is specified, the statement is run with the ``search_path`` set to that schema. This means
+that these statements are equivalent:
+
+
+```
+sgr sql "SELECT * FROM "noaa/climate".table"
+sgr sql -s noaa/climate "SELECT * FROM table"
+```
+
+If `--image` is specified, this will run the statement against that image using layered querying.
+Only read-only statements are supported. For example:
+
+
+```
+sgr sql -i noaa/climate:latest "SELECT * FROM table"
+```
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-s, --schema TEXT`**: Run SQL against this schema.
+  * **`-i, --image IMAGE`**: Run SQL against this image.
+  * **`-a, --show-all`**: Return all results of the query.
+  * **`-j, --json`**: Return results as JSON
+  * **`-n, --no-transaction`**: Don't wrap the SQL in a transaction.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0007_status.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0007_status.mdx
new file mode 100644
index 00000000..5e312f11
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/0007_status.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "status", title: "sgr status", sidebarTitle: "status", description: "Show the status of the Splitgraph engine."};
+
+```sgr status [OPTIONS] [REPOSITORY]```
+
+Show the status of the Splitgraph engine.
+
+If a repository is passed, show in-depth information about a repository.
+
+If not, show information about all repositories local to the engine. This will show a list
+of all repositories, number of local images and tags, total repository size (theoretical
+maximum size and current on-disk footprint of cached objects) and the current checked
+out image (with LQ if the image is checked out using read-only layered querying).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/metadata.json
new file mode 100644
index 00000000..a2c3f0f8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0001_image-information/metadata.json
@@ -0,0 +1 @@
+{"title": "Image information"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0000_engine-add.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0000_engine-add.mdx
new file mode 100644
index 00000000..c0b69417
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0000_engine-add.mdx
@@ -0,0 +1,26 @@
+export const meta = {id: "engine-add", title: "sgr engine add", sidebarTitle: "engine add", description: "Create and start a Splitgraph engine."};
+
+```sgr engine add [OPTIONS] [NAME]```
+
+Create and start a Splitgraph engine.
+
+This will pull the Splitgraph engine image, start it, create a Postgres user and initialize
+the engine.
+
+This also creates Docker volumes required to persist data/metadata.
+
+The engine Docker container by default will be named `splitgraph_engine_default` and
+its data and metadata volumes will have names `splitgraph_engine_default_data` and
+`splitgraph_engine_default_metadata`.
+
+### Options
+
+  * **`-i, --image TEXT`**: Docker image with the Splitgraph engine
+  * **`-p, --port INTEGER`**: Port to start the engine on
+  * **`-u, --username TEXT`**: 
+  * **`--no-init`**: Don't run `sgr init` on the engine
+  * **`--no-sgconfig`**: Don't add the engine to .sgconfig
+  * **`--inject-source`**: Inject the current Splitgraph source code into the engine using Docker bind mounts
+  * **`--no-pull`**: Don't pull the Docker image
+  * **`--set-default`**: Set the engine as the default engine in the config regardless of its name
+  * **`--password TEXT`**: 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0001_engine-delete.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0001_engine-delete.mdx
new file mode 100644
index 00000000..6229e082
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0001_engine-delete.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "engine-delete", title: "sgr engine delete", sidebarTitle: "engine delete", description: "Delete the Splitgraph engine container."};
+
+```sgr engine delete [OPTIONS] [NAME]```
+
+Delete the Splitgraph engine container.
+
+### Options
+
+  * **`-y, --yes`**: Do not prompt for confirmation.
+  * **`-f, --force`**: Delete the engine anyway if it's running.
+  * **`-v, --with-volumes`**: Include the engine's volumes (if not specified, volumes will be reattached when an engine with the same name is created).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0002_engine-list.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0002_engine-list.mdx
new file mode 100644
index 00000000..a2530db2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0002_engine-list.mdx
@@ -0,0 +1,13 @@
+export const meta = {id: "engine-list", title: "sgr engine list", sidebarTitle: "engine list", description: "List Splitgraph engines."};
+
+```sgr engine list [OPTIONS] ```
+
+List Splitgraph engines.
+
+This only lists Docker containers that were created by sgr engine
+(whose names start with `splitgraph_engine_`. To manage other engines,
+use Docker CLI directly.
+
+### Options
+
+  * **`-a, --include-all`**: Include stopped engine containers.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0003_engine-start.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0003_engine-start.mdx
new file mode 100644
index 00000000..4c9cdf6c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0003_engine-start.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "engine-start", title: "sgr engine start", sidebarTitle: "engine start", description: "Start a Splitgraph engine."};
+
+```sgr engine start [OPTIONS] [NAME]```
+
+Start a Splitgraph engine.
+
+This is a wrapper around the corresponding Docker command.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0004_engine-stop.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0004_engine-stop.mdx
new file mode 100644
index 00000000..7ea64786
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0004_engine-stop.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "engine-stop", title: "sgr engine stop", sidebarTitle: "engine stop", description: "Stop a Splitgraph engine."};
+
+```sgr engine stop [OPTIONS] [NAME]```
+
+Stop a Splitgraph engine.
+
+This is a wrapper around the corresponding Docker command.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0005_engine-upgrade.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0005_engine-upgrade.mdx
new file mode 100644
index 00000000..751cd998
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0005_engine-upgrade.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "engine-upgrade", title: "sgr engine upgrade", sidebarTitle: "engine upgrade", description: "Upgrade a Splitgraph engine."};
+
+```sgr engine upgrade [OPTIONS] [NAME]```
+
+Upgrade a Splitgraph engine.
+
+This consists of shutting down the current Splitgraph engine,
+deleting its Docker container (keeping the actual data and
+metadata volumes intact), creating a container based on a newer
+image and finally reinitializing the engine to perform needed migrations.
+
+### Options
+
+  * **`-i, --image TEXT`**: Docker image with the Splitgraph engine
+  * **`--no-pull`**: Don't pull the new engine image
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0006_engine-log.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0006_engine-log.mdx
new file mode 100644
index 00000000..58859523
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0006_engine-log.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "engine-log", title: "sgr engine log", sidebarTitle: "engine log", description: "Get logs from a Splitgraph engine."};
+
+```sgr engine log [OPTIONS] [NAME]```
+
+Get logs from a Splitgraph engine.
+
+### Options
+
+  * **`-f, --follow`**: Stream logs
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0007_engine-configure.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0007_engine-configure.mdx
new file mode 100644
index 00000000..1be8adcd
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0007_engine-configure.mdx
@@ -0,0 +1,10 @@
+export const meta = {id: "engine-configure", title: "sgr engine configure", sidebarTitle: "engine configure", description: "Inject a configuration file into an engine."};
+
+```sgr engine configure [OPTIONS] [NAME]```
+
+Inject a configuration file into an engine.
+
+This copies the current .sgconfig file (pointed to by SG_CONFIG_FILE) into
+the engine container, making it use that configuration for
+when it's queried through an application other than the sgr client
+(layered querying).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0008_engine-version.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0008_engine-version.mdx
new file mode 100644
index 00000000..d47bfe05
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/0008_engine-version.mdx
@@ -0,0 +1,5 @@
+export const meta = {id: "engine-version", title: "sgr engine version", sidebarTitle: "engine version", description: "Get version of Splitgraph engine."};
+
+```sgr engine version [OPTIONS] [NAME]```
+
+Get version of Splitgraph engine.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/metadata.json
new file mode 100644
index 00000000..3f70a9d2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0002_engine-management/metadata.json
@@ -0,0 +1 @@
+{"title": "Engine management"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/0000_csv-export.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/0000_csv-export.mdx
new file mode 100644
index 00000000..8408f9f2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/0000_csv-export.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "csv-export", title: "sgr csv export", sidebarTitle: "csv export", description: "Export the result of a query as CSV."};
+
+```sgr csv export [OPTIONS] IMAGE_SPEC QUERY```
+
+Export the result of a query as CSV.
+
+### Examples
+
+`sgr csv export noaa/climate "SELECT * FROM rainfall"`
+
+Output everything in the currently checked-out `"rainfall"` table as CSV.
+
+`sgr csv export noaa/climate:dec_2018 "SELECT * FROM rainfall WHERE state = 'AZ' -f dec_2018_az.csv`
+
+Check out the `dec_2018` tag of `noaa/climate` and output values from `"rainfall"` for Arizona to `dec_2018_az.csv`
+
+`sgr csv export --layered noaa/climate:abcdef1234567890 "SELECT * FROM rainfall JOIN other_table ON..."`
+
+Uses layered querying instead to execute a join on tables in a certain image (satisfying the query without
+having to check the image out).
+
+### Options
+
+  * **`-f, --file FILENAME`**: File name to export to, default stdout.
+  * **`-l, --layered`**: Don't materialize the tables, use layered querying instead.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/0001_csv-import.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/0001_csv-import.mdx
new file mode 100644
index 00000000..5f3eb655
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/0001_csv-import.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "csv-import", title: "sgr csv import", sidebarTitle: "csv import", description: "Import a CSV file into a checked-out Splitgraph repository."};
+
+```sgr csv import [OPTIONS] REPOSITORY TABLE```
+
+Import a CSV file into a checked-out Splitgraph repository. This doesn't create a new image, use `sgr commit`
+after the import and any adjustments (e.g. adding primary keys or converting column types) to do so.
+
+If the target table doesn't exist, this will create a new table.
+
+If the target table does exist, this will try and patch the new values in by updating rows that exist in the
+current table (as per its primary key constraints) and inserting new ones. Rows existing in the current table
+but missing in the CSV won't be deleted.
+
+If `-r` is passed, the table will instead be deleted and recreated from the CSV file if it exists.
+
+### Options
+
+  * **`-f, --file FILENAME`**: File name to import data from, default stdin.
+  * **`-r, --replace`**: Replace the table if it already exists.
+  * **`-k, --primary-key TEXT`**: Use the specified column(s) as primary key(s)
+  * **`-t, --override-type <TEXT TEXT>...`**: Explicitly set types of these columns to PG types
+  * **`--encoding TEXT`**: Encoding to use for the CSV file
+  * **`--separator TEXT`**: CSV separator to use
+  * **`--no-header`**: Treats the first line of the CSV as data rather than a header.
+  * **`--skip-schema-check`**: Skips checking that the dataframe is compatible with the target schema.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/0002_mount.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/0002_mount.mdx
new file mode 100644
index 00000000..85bcb7f5
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/0002_mount.mdx
@@ -0,0 +1,10 @@
+export const meta = {id: "mount", title: "sgr mount", sidebarTitle: "mount", description: "Mount foreign databases as Postgres schemas."};
+
+```sgr mount [OPTIONS] ```
+
+Mount foreign databases as Postgres schemas.
+
+Uses the Postgres FDW interface to create a local Postgres schema with foreign tables that map
+to tables in other databases.
+
+See a given mount handler's documentation for handler-specific parameters.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/metadata.json
new file mode 100644
index 00000000..d82f5068
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0003_data-import-export/metadata.json
@@ -0,0 +1 @@
+{"title": "Data import/export"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0000_rm.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0000_rm.mdx
new file mode 100644
index 00000000..47baf9a3
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0000_rm.mdx
@@ -0,0 +1,40 @@
+export const meta = {id: "rm", title: "sgr rm", sidebarTitle: "rm", description: "Delete schemas, repositories or images."};
+
+```sgr rm [OPTIONS] IMAGE_SPEC```
+
+Delete schemas, repositories or images.
+
+If the target of this command is a Postgres schema, this performs DROP SCHEMA CASCADE.
+
+If the target of this command is a Splitgraph repository, this deletes the repository and all of its history.
+
+If the target of this command is an image, this deletes the image and all of its children.
+
+In any case, this command will ask for confirmation of the deletion, unless ``-y`` is passed. If ``-r``
+(``--remote``), is passed, this will perform deletion on a remote Splitgraph engine (registered in the config)
+instead, assuming the user has write access to the remote repository.
+
+This does not delete any physical objects that the deleted repository/images depend on:
+use ``sgr cleanup`` to do that.
+
+### Examples
+
+``sgr rm temporary_schema``
+
+Deletes ``temporary_schema`` from the local engine.
+
+``sgr rm --remote data.splitgraph.com username/repo``
+
+Deletes ``username/repo`` from the Splitgraph registry.
+
+``sgr rm -y username/repo:old_branch``
+
+Deletes the image pointed to by ``old_branch`` as well as all of its children (images created by a commit based
+on this image), as well as all of the tags that point to now deleted images, without asking for confirmation.
+Note this will not delete images that import tables from the deleted images via Splitfiles or indeed the
+physical objects containing the actual tables.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-y, --yes`**: Agree to deletion without confirmation
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0001_init.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0001_init.mdx
new file mode 100644
index 00000000..e4ab8d4d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0001_init.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "init", title: "sgr init", sidebarTitle: "init", description: "Initialize a new repository/engine."};
+
+```sgr init [OPTIONS] [REPOSITORY]```
+
+Initialize a new repository/engine.
+
+### Examples
+
+`sgr init`
+
+Initializes the current local Splitgraph engine by writing some bookkeeping information.
+This is required for the rest of sgr to work.
+
+`sgr init --skip-object-handling`
+
+Initializes a Splitgraph engine without installing audit triggers or object management routines:
+this is useful for engines that aren't intended to be used for image checkouts.
+
+``sgr init new/repo``
+
+Creates a single image with the hash ``00000...`` in ``new/repo``
+
+### Options
+
+  * **`--skip-object-handling`**: 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0002_cleanup.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0002_cleanup.mdx
new file mode 100644
index 00000000..c23688a4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0002_cleanup.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "cleanup", title: "sgr cleanup", sidebarTitle: "cleanup", description: "Prune unneeded objects from the engine."};
+
+```sgr cleanup [OPTIONS] ```
+
+Prune unneeded objects from the engine.
+
+This deletes all objects from the cache that aren't required by any local repository.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0003_prune.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0003_prune.mdx
new file mode 100644
index 00000000..64c2d49b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0003_prune.mdx
@@ -0,0 +1,20 @@
+export const meta = {id: "prune", title: "sgr prune", sidebarTitle: "prune", description: "Cleanup dangling images from a repository."};
+
+```sgr prune [OPTIONS] REPOSITORY```
+
+Cleanup dangling images from a repository.
+
+This includes images not pointed to by any tags (or checked out) and those that aren't required by any of
+such images.
+
+Will ask for confirmation of the deletion, unless ``-y ``is passed. If ``-r`` (``--remote``) is
+passed, this will perform deletion on a remote Splitgraph engine (registered in the config) instead, assuming
+the user has write access to the remote repository.
+
+This does not delete any physical objects that the deleted repository/images depend on:
+use ``sgr cleanup`` to do that.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-y, --yes`**: Agree to deletion without confirmation
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0004_config.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0004_config.mdx
new file mode 100644
index 00000000..7fcaa53c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0004_config.mdx
@@ -0,0 +1,33 @@
+export const meta = {id: "config", title: "sgr config", sidebarTitle: "config", description: "Print the current Splitgraph configuration."};
+
+```sgr config [OPTIONS] ```
+
+Print the current Splitgraph configuration.
+
+This takes into account the local config file, the default values
+and all overrides specified via environment variables.
+
+This command can be used to dump the current Splitgraph configuration into a file:
+
+```
+sgr config --no-shielding --config-format > .sgconfig
+```
+
+...or save a config file overriding an entry:
+
+```
+SG_REPO_LOOKUP=engine1,engine2 sgr config -sc > .sgconfig
+```
+
+If `--conn-string` is passed, this prints out a libpq connection string
+that can be used to connect to the default Splitgraph engine with other tools:
+
+```
+pgcli $(sgr config -n)
+```
+
+### Options
+
+  * **`-s, --no-shielding`**: If set, doesn't replace sensitive values (like passwords) with asterisks
+  * **`-c, --config-format`**: Output configuration in the Splitgraph config file format
+  * **`-n, --conn-string`**: Print a libpq connection string to the engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0005_dump.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0005_dump.mdx
new file mode 100644
index 00000000..111baceb
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0005_dump.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "dump", title: "sgr dump", sidebarTitle: "dump", description: "Dump a repository to SQL."};
+
+```sgr dump [OPTIONS] REPOSITORY```
+
+Dump a repository to SQL.
+
+### Options
+
+  * **`--exclude-object-contents`**: Don't dump the commands needed to recreate objects required by the repository.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0006_eval.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0006_eval.mdx
new file mode 100644
index 00000000..5b4b7f0a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0006_eval.mdx
@@ -0,0 +1,39 @@
+export const meta = {id: "eval", title: "sgr eval", sidebarTitle: "eval", description: "Evaluate a Python snippet using the Splitgraph API."};
+
+```sgr eval [OPTIONS] COMMAND```
+
+Evaluate a Python snippet using the Splitgraph API.
+
+This is for advanced users only and should be only used
+if you know what you are doing.
+
+Normal Python statements are supported and the command is evaluated
+in a namespace where the following is already imported and available:
+
+  * Repository: class that instantiates a Splitgraph repository and makes
+    API functions like .commit(), .checkout() etc available.
+
+  * engine: Current local engine
+
+  * object_manager: an instance of ObjectManager that allows
+    to get information about objects and manage the object cache.
+
+
+Example:
+```
+sgr eval 'import json; print(json.dumps(Repository\
+    .from_schema(repo_name)\
+    .images["latest"]\
+    .get_table(table_name)\
+    .table_schema))' \
+-a repo_name my_repo -a table_name my_table
+```
+
+Will dump the schema of table my_table in the most recent image in my_repo in JSON format.
+
+For more information, see the Splitgraph API reference.
+
+### Options
+
+  * **`--i-know-what-im-doing`**: Pass this if you're sure that the code you're running is safe and don't want to be prompted.
+  * **`-a, --arg <TEXT TEXT>...`**: Make extra variables available in the command's namespace
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0007_upgrade.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0007_upgrade.mdx
new file mode 100644
index 00000000..188e798b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/0007_upgrade.mdx
@@ -0,0 +1,17 @@
+export const meta = {id: "upgrade", title: "sgr upgrade", sidebarTitle: "upgrade", description: "Upgrade sgr client and engine."};
+
+```sgr upgrade [OPTIONS] [VERSION]```
+
+Upgrade sgr client and engine.
+
+This will try to download the most recent stable binary for the current platform
+into the location this binary is running from and then upgrade the default engine.
+
+This method is only supported for single-binary installs and engines managed
+by `sgr engine`.
+
+### Options
+
+  * **`--skip-engine-upgrade`**: Only upgrade the client
+  * **`--path TEXT`**: Override the path to download the new binary to.
+  * **`--force`**: Reinstall older/same versions.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/metadata.json
new file mode 100644
index 00000000..26f7a103
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0004_miscellaneous/metadata.json
@@ -0,0 +1 @@
+{"title": "Miscellaneous"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0000_clone.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0000_clone.mdx
new file mode 100644
index 00000000..7c2929bd
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0000_clone.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "clone", title: "sgr clone", sidebarTitle: "clone", description: "Clone a remote Splitgraph repository/image into a local one."};
+
+```sgr clone [OPTIONS] REMOTE_REPOSITORY_OR_IMAGE [LOCAL_REPOSITORY]```
+
+Clone a remote Splitgraph repository/image into a local one.
+
+The lookup path for the repository is governed by the ``SG_REPO_LOOKUP`` and ``SG_REPO_LOOKUP_OVERRIDE``
+config parameters and can be overridden by the command line ``--remote`` option.
+
+### Options
+
+  * **`-r, --remote TEXT`**: Name of the remote engine
+  * **`-d, --download-all`**: Download all objects immediately instead of on checkout.
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing objects
+  * **`-t, --tags`**: Overwrite tags for pulled image/repo
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0001_push.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0001_push.mdx
new file mode 100644
index 00000000..60ba1e17
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0001_push.mdx
@@ -0,0 +1,30 @@
+export const meta = {id: "push", title: "sgr push", sidebarTitle: "push", description: "Push images the Splitgraph registry or another engine."};
+
+```sgr push [OPTIONS] REPOSITORY_OR_IMAGE [REMOTE_REPOSITORY]```
+
+Push images the Splitgraph registry or another engine.
+
+If an image is not specified (e.g. `sgr push noaa/climate`, this will push all new images.
+
+By default, the repository will be pushed to a repository with the same name in the user's namespace
+(SG_NAMESPACE configuration value which defaults to the username).
+
+If there's a single engine registered in the config (e.g. data.splitgraph.com), it shall be the default
+destination.
+
+If an upstream repository/engine has been configured for this engine with `sgr upstream`,
+it will be used instead.
+
+Finally, if `remote_repository` or `--remote` are passed, they will take precedence.
+
+The actual objects will be uploaded to S3 using Minio. When pushing to another engine,
+you can choose to upload them directly by passing `--handler DB`.
+
+### Options
+
+  * **`-r, --remote []`**: Name of the remote engine
+  * **`-h, --upload-handler TEXT`**: Upload handler
+  * **`-o, --upload-handler-options JSON`**: Upload handler parameters
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing remote objects
+  * **`-t, --tags`**: Overwrite tags for pushed image/repo
+  * **`-u, --reupload-objects`**: Reupload objects that metadata is pushed out for
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0002_pull.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0002_pull.mdx
new file mode 100644
index 00000000..d1b631d1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0002_pull.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "pull", title: "sgr pull", sidebarTitle: "pull", description: "Pull changes / download a single image."};
+
+```sgr pull [OPTIONS] REPOSITORY_OR_IMAGE```
+
+Pull changes / download a single image.
+
+### Options
+
+  * **`-d, --download-all`**: Download all objects immediately instead of on checkout.
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing objects
+  * **`-t, --tags`**: Overwrite tags for pulled image/repo
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0003_upstream.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0003_upstream.mdx
new file mode 100644
index 00000000..32f1d6ec
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/0003_upstream.mdx
@@ -0,0 +1,29 @@
+export const meta = {id: "upstream", title: "sgr upstream", sidebarTitle: "upstream", description: "Get or set the upstream for a repository."};
+
+```sgr upstream [OPTIONS] REPOSITORY```
+
+Get or set the upstream for a repository.
+
+This shows the default repository used for pushes and pulls as well as allows to change it to a different
+remote engine and repository.
+
+The remote engine alias must exist in the config file.
+
+### Examples
+
+``sgr upstream my/repo --set splitgraph.com username/repo``
+
+Sets the upstream for ``my/repo`` to ``username/repo`` existing on the ``splitgraph.com`` engine
+
+``sgr upstream my/repo --reset``
+
+Removes the upstream for ``my/repo``.
+
+``sgr upstream my/repo``
+
+Shows the current upstream for ``my/repo``.
+
+### Options
+
+  * **`-s, --set <TEXT REPOSITORY>...`**: Set the upstream to a engine alias + repository
+  * **`-r, --reset`**: Delete the upstream
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/metadata.json
new file mode 100644
index 00000000..b2c1ab8d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0005_sharing-images/metadata.json
@@ -0,0 +1 @@
+{"title": "Sharing images"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0000_build.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0000_build.mdx
new file mode 100644
index 00000000..2204aae2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0000_build.mdx
@@ -0,0 +1,29 @@
+export const meta = {id: "build", title: "sgr build", sidebarTitle: "build", description: "Build Splitgraph images."};
+
+```sgr build [OPTIONS] SPLITFILE```
+
+Build Splitgraph images.
+
+This executes a Splitfile, building a new image or checking it out from cache if the same
+image had already been built.
+
+### Examples
+
+``sgr build my.splitfile``
+
+Executes ``my.splitfile`` and writes its output into a new repository with the same name
+as the Splitfile (my) unless the name is specified in the Splitfile.
+
+``sgr build my.splitfile -o mynew/repo``
+
+Executes ``my.splitfile`` and writes its output into ``mynew/repo``.
+
+``sgr build my_other.splitfile -o mynew/otherrepo --args PARAM1 VAL1 --args PARAM2 VAL2``
+
+Executes ``my_other.splitfile`` with parameters ``PARAM1`` and ``PARAM2`` set to
+``VAL1`` and  ``VAL2``, respectively.
+
+### Options
+
+  * **`-a, --args <TEXT TEXT>...`**: Parameters to be substituted into the Splitfile. All parameters mentioned in the file must be specified in order for the Splitfile to be executed.
+  * **`-o, --output-repository REPOSITORY`**: Repository to store the result in.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0001_rebuild.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0001_rebuild.mdx
new file mode 100644
index 00000000..8194b0f1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0001_rebuild.mdx
@@ -0,0 +1,27 @@
+export const meta = {id: "rebuild", title: "sgr rebuild", sidebarTitle: "rebuild", description: "Rebuild images against different dependencies."};
+
+```sgr rebuild [OPTIONS] IMAGE_SPEC```
+
+Rebuild images against different dependencies.
+
+Examines the provenance of a Splitgraph image created by a Splitfile and reruns it against different images than
+the ones that were imported by the original run.
+
+### Examples
+
+``sgr rebuild my/repo --against noaa/climate:old_data``
+
+Reconstructs the Splitfile used to create ``my/repo:latest``, replaces all imports from ``noaa/climate`` with
+imports from ``noaa/climate:old_data`` and reruns the Splitfile.
+
+``sgr rebuild my/repo:other_tag -u``
+
+Rebuilds ``my_repo:other_tag`` against the latest versions of all of its dependencies.
+
+Image caching still works in this case: if the result of the rebuild already exists, the image will be checked
+out.
+
+### Options
+
+  * **`-u, --update`**: Rederive the image against the latest version of all dependencies.
+  * **`-a, --against IMAGE`**: Images to substitute into the reconstructed Splitfile, of the form [NAMESPACE/]REPOSITORY[:HASH_OR_TAG]. Default tag is 'latest'.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0002_provenance.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0002_provenance.mdx
new file mode 100644
index 00000000..45d3a5a8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0002_provenance.mdx
@@ -0,0 +1,62 @@
+export const meta = {id: "provenance", title: "sgr provenance", sidebarTitle: "provenance", description: "Reconstruct the provenance of an image."};
+
+```sgr provenance [OPTIONS] IMAGE_SPEC```
+
+Reconstruct the provenance of an image.
+
+This inspects the image to produce a list of images that were used by the Splitfile
+that created it, or a Splitfile with the same effect.
+
+`IMAGE_SPEC` must be of the form `[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]`.
+If no tag is specified, `latest` is used.
+
+### Examples
+
+Assume `my/repo` is produced by the following Splitfile:
+
+```
+FROM MOUNT [...] IMPORT external_table
+FROM noaa/climate IMPORT {SELECT * FROM rainfall_data WHERE state = 'AZ'} AS rainfall_data
+```
+
+`my/repo` will have 2 images: one having `hash_1` (with the `external_table` imported from a mounted database)
+and one having `hash_2` (with both `external_table` and the `rainfall_data` containing the result
+of the query run against the then-latest image in the `noaa/climate` repository).
+
+In this case:
+
+```
+sgr provenance my/repo
+```
+
+Returns a list of repositories and images that were imported by the Splitfile that constructed this image::
+
+```
+my/repo:[hash_2] depends on:
+noaa/climate:[hash_3]
+```
+
+Where `hash_3` is the hash of the latest image in the `noaa/climate` repository at the time the original
+Splitfile was run. However:
+
+```
+sgr provenance -f my/repo
+```
+
+Will try to reconstruct the Splitfile that can be used to build this image. Since the FROM MOUNT command isn't
+reproducible (requires access to the original external database, which is a moving target), this will fail.
+
+If `-e` is passed, this will emit information about irreproducible commands instead of failing.
+
+```
+sgr provenance -ef my/repo
+
+# Splitfile commands used to reconstruct my/repo:[image_hash]
+# Irreproducible Splitfile command of type MOUNT
+FROM noaa/climate:[hash_3] IMPORT {SELECT * FROM rainfall_data WHERE state = 'AZ'}
+```
+
+### Options
+
+  * **`-f, --full`**: Recreate the Splitfile used to create this image
+  * **`-e, --ignore-errors`**: If set, ignore commands that aren't reproducible (like MOUNT or custom commands)
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0003_dependents.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0003_dependents.mdx
new file mode 100644
index 00000000..fc8bc234
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/0003_dependents.mdx
@@ -0,0 +1,21 @@
+export const meta = {id: "dependents", title: "sgr dependents", sidebarTitle: "dependents", description: "List images that were created from an image."};
+
+```sgr dependents [OPTIONS] IMAGE_SPEC```
+
+List images that were created from an image.
+
+This is the inverse of the sgr provenance command. It will list all images that were
+created using a Splitfile that imported data from this image.
+
+By default, this will look at images on the local engine. The engine can be overridden
+with --source-on and --dependents-on. For example:
+
+    sgr dependents --source-on data.splitgraph.com --dependents-on LOCAL noaa/climate:latest
+
+will show all images on the local engine that derived data from `noaa/climate:latest`
+on the Splitgraph registry.
+
+### Options
+
+  * **`-O, --source-on TEXT`**: Override the engine to look the source up on
+  * **`-o, --dependents-on TEXT`**: Override the engine to list dependents from
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/metadata.json
new file mode 100644
index 00000000..50afd08a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0006_splitfile-execution/metadata.json
@@ -0,0 +1 @@
+{"title": "Splitfile execution"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0000_cloud-register.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0000_cloud-register.mdx
new file mode 100644
index 00000000..089ce0c6
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0000_cloud-register.mdx
@@ -0,0 +1,18 @@
+export const meta = {id: "cloud-register", title: "sgr cloud register", sidebarTitle: "cloud register", description: "Register the user on a Splitgraph registry."};
+
+```sgr cloud register [OPTIONS] ```
+
+Register the user on a Splitgraph registry.
+
+By default, this registers the user on data.splitgraph.com,
+obtains a set of machine (API) credentials for the client to communicate
+with the registry and configures the data.splitgraph.com engine.
+
+### Options
+
+  * **`--username TEXT`**: 
+  * **`--password TEXT`**: 
+  * **`--email TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to register on.
+  * **`--accept-tos`**: Accept the registry's Terms of Service
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0001_cloud-login.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0001_cloud-login.mdx
new file mode 100644
index 00000000..cb99d6c1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0001_cloud-login.mdx
@@ -0,0 +1,23 @@
+export const meta = {id: "cloud-login", title: "sgr cloud login", sidebarTitle: "cloud login", description: "Log into a Splitgraph registry with username/password."};
+
+```sgr cloud login [OPTIONS] ```
+
+Log into a Splitgraph registry with username/password.
+
+This will generate a new refresh token (to use the Splitgraph query API)
+and API keys to let sgr access the registry (if they don't already exist
+in the configuration file or if the actual username has changed).
+
+Note that if you already have generated an API key pair but it's not
+in the configuration file, this will generate a new pair instead of
+restoring the existing one, as the API secret is only stored in the configuration file.
+
+If you want to log in using an existing API key pair, use `sgr cloud login-api` instead.
+
+### Options
+
+  * **`--username TEXT`**: 
+  * **`--password TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`--overwrite`**: Overwrite old API keys in the config if they exist
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0002_cloud-login-api.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0002_cloud-login-api.mdx
new file mode 100644
index 00000000..4007fe22
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0002_cloud-login-api.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "cloud-login-api", title: "sgr cloud login-api", sidebarTitle: "cloud login-api", description: "Log into a Splitgraph registry using existing API keys."};
+
+```sgr cloud login-api [OPTIONS] ```
+
+Log into a Splitgraph registry using existing API keys.
+
+This will inject the API keys for the registry into the configuration file
+and generate a new access token.
+
+### Options
+
+  * **`--api-key TEXT`**: 
+  * **`--api-secret TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0003_cloud-sql.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0003_cloud-sql.mdx
new file mode 100644
index 00000000..56c4be0a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0003_cloud-sql.mdx
@@ -0,0 +1,20 @@
+export const meta = {id: "cloud-sql", title: "sgr cloud sql", sidebarTitle: "cloud sql", description: "Run SQL on or connect to the Splitgraph Data Delivery Network."};
+
+```sgr cloud sql [OPTIONS] [QUERY]```
+
+Run SQL on or connect to the Splitgraph Data Delivery Network.
+
+If a query isn't passed, this will return a libpq-compatible connection string to
+the registry's SQL endpoint. It can be used to connect to the endpoint with other SQL clients:
+
+```
+pgcli $(sgr cloud sql)
+```
+
+If a query is passed, this will run an SQL query against the SQL endpoint.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`-a, --show-all`**: Return all results of the query.
+  * **`-j, --json`**: Return results as JSON
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0004_cloud-curl.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0004_cloud-curl.mdx
new file mode 100644
index 00000000..e902965b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0004_cloud-curl.mdx
@@ -0,0 +1,32 @@
+export const meta = {id: "cloud-curl", title: "sgr cloud curl", sidebarTitle: "cloud curl", description: "Query a Splitgraph REST API."};
+
+```sgr cloud curl [OPTIONS] IMAGE [REQUEST_PARAMS]```
+
+Query a Splitgraph REST API.
+
+This is a thin wrapper around curl that performs an HTTP request to Splitgraph Cloud to
+interact with a dataset using PostgREST (http://postgrest.org) or the Splitfile execution service.
+
+The actual invocation is:
+
+```
+curl [API endpoint][request] -H [access_token] [extra curl args].
+```
+
+The image must be of the form `namespace/repository:[hash_or_tag (default latest)]`.
+
+The actual request parameters depend on the request type:
+
+  * For PostgREST: `/table?[postgrest request]` or empty to get the OpenAPI spec for this image.
+    For a reference on how to perform Postgrest requests, see http://postgrest.org/en/latest/api.html.
+  * For the Splitfile executor: a JSON array to be POSTed to the executor, e.g.
+    `'{"command": "FROM some/repo IMPORT some_table AS alias", "tag": "new_tag"}'`.
+
+`--curl-args` allows to pass extra arguments to curl. Note that every argument must be prefixed
+with `--curl-args`, e.g. `--curl-args --cacert --curl-args /path/to/ca.pem`.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`-t, --request-type [postgrest|splitfile]`**: 
+  * **`-c, --curl-args TEXT`**: Extra arguments to be passed to curl
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0005_cloud-readme.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0005_cloud-readme.mdx
new file mode 100644
index 00000000..4d800dc6
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0005_cloud-readme.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "cloud-readme", title: "sgr cloud readme", sidebarTitle: "cloud readme", description: "Upload or a README to a Splitgraph repository."};
+
+```sgr cloud readme [OPTIONS] REPOSITORY README```
+
+Upload or a README to a Splitgraph repository.
+
+The repository must have already been pushed. The README must be a file in Markdown format.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0006_cloud-description.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0006_cloud-description.mdx
new file mode 100644
index 00000000..003c953f
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0006_cloud-description.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "cloud-description", title: "sgr cloud description", sidebarTitle: "cloud description", description: "Upload a description to a Splitgraph repository."};
+
+```sgr cloud description [OPTIONS] REPOSITORY DESCRIPTION```
+
+Upload a description to a Splitgraph repository.
+
+The repository must have already been pushed. The description should be plain text, 160 characters or shorter.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0007_cloud-metadata.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0007_cloud-metadata.mdx
new file mode 100644
index 00000000..c9691e3b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0007_cloud-metadata.mdx
@@ -0,0 +1,19 @@
+export const meta = {id: "cloud-metadata", title: "sgr cloud metadata", sidebarTitle: "cloud metadata", description: "Upload a metadata file to a Splitgraph repository."};
+
+```sgr cloud metadata [OPTIONS] REPOSITORY [METADATA_FILE]```
+
+Upload a metadata file to a Splitgraph repository.
+
+    The metadata file should be in YAML format and have two keys: `readme` and `description`.
+
+    For example:
+
+```
+readme: dataset-readme.md
+description: Dataset description (160 characters max).
+```
+    
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0008_cloud-search.mdx b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0008_cloud-search.mdx
new file mode 100644
index 00000000..c23c31f4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/0008_cloud-search.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "cloud-search", title: "sgr cloud search", sidebarTitle: "cloud search", description: "Search for a repository on the Splitgraph registry."};
+
+```sgr cloud search [OPTIONS] QUERY```
+
+Search for a repository on the Splitgraph registry.
+
+For more advanced search, including filtering by topics, go to the registry's website itself.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`--limit INTEGER RANGE`**: Number of results to return
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/metadata.json
new file mode 100644
index 00000000..25ba655e
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/0007_splitgraph-cloud/metadata.json
@@ -0,0 +1 @@
+{"title": "Splitgraph Cloud"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.1/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.1/metadata.json
new file mode 100644
index 00000000..4c219aac
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.1/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.1",
+  "updated_at": "2021-01-26T14:47:59.417Z",
+  "release": {
+    "id": 30568807,
+    "tag_name": "v0.2.1",
+    "target_commitish": "492b8412619eb54ab198ac597beef528a4c54f96",
+    "created_at": "2020-09-02T08:23:13Z",
+    "published_at": "2020-09-02T09:00:42Z",
+    "assets": [
+      {
+        "id": 24722695,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/24722695",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-09-02T08:47:33Z",
+        "updated_at": "2020-09-02T08:47:34Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.1/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0000_checkout.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0000_checkout.mdx
new file mode 100644
index 00000000..cc805a26
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0000_checkout.mdx
@@ -0,0 +1,30 @@
+export const meta = {id: "checkout", title: "sgr checkout", sidebarTitle: "checkout", description: "Check out a Splitgraph image into a Postgres schema."};
+
+```sgr checkout [OPTIONS] IMAGE_SPEC```
+
+Check out a Splitgraph image into a Postgres schema.
+
+This downloads the required physical objects and materializes all tables, unless ``-l`` or ``--layered`` is passed,
+in which case the objects are downloaded and a foreign data wrapper is set up on the engine to satisfy read-only
+queries by combining results from each table's fragments.
+
+Tables checked out in this way are still presented as normal Postgres tables and can queried in the same way.
+Since the tables aren't materialized, layered querying is faster to set up, but since each query now results in a
+subquery to each object comprising the table, actual query execution is slower than to materialized Postgres tables.
+
+Layered querying is only supported for read-only queries.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. Note that currently, the schema that the
+image is checked out into has to have the same name as the repository. If no image hash or tag is passed,
+"HEAD" is assumed.
+
+If ``-u`` or ``--uncheckout`` is passed, this instead deletes the checked out schema (assuming there are no pending
+changes) and removes the HEAD pointer.
+
+If ``--force`` isn't passed and the schema has pending changes, this will fail.
+
+### Options
+
+  * **`-f, --force`**: Discard all pending changes to the schema
+  * **`-u, --uncheckout`**: Delete the checked out copy instead
+  * **`-l, --layered`**: Don't materialize the tables, use layered querying instead.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0001_commit.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0001_commit.mdx
new file mode 100644
index 00000000..9a2ec1f1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0001_commit.mdx
@@ -0,0 +1,59 @@
+export const meta = {id: "commit", title: "sgr commit", sidebarTitle: "commit", description: "Commit changes to a checked-out Splitgraph repository."};
+
+```sgr commit [OPTIONS] REPOSITORY```
+
+Commit changes to a checked-out Splitgraph repository.
+
+This packages up all changes into a new image. Where a table hasn't been created or had its schema changed,
+this will delta compress the changes. For all other tables (or if ``-s`` has been passed), this will
+store them as full table snapshots.
+
+When a table is stored as a full snapshot, `--chunk-size` sets the maximum size, in rows, of the fragments
+that the table will be split into (default is no splitting). The splitting is done by the
+table's primary key.
+
+If `--split-changesets` is passed, delta-compressed changes will also be split up according to the original
+table chunk boundaries. For example, if there's a change to the first and the 20000th row of a table that was
+originally committed with `--chunk-size=10000`, this will create 2 fragments: one based on the first chunk
+and one on the second chunk of the table.
+
+If `--chunk-sort-keys` is passed, data inside the chunk is sorted by this key (or multiple keys).
+This helps speed up queries on those keys for storage layers than can leverage that (e.g. CStore). The expected format is JSON, e.g. `{table_1: [col_1, col_2]}`
+
+`--index-options` expects a JSON-serialized dictionary of `{table: index_type: column: index_specific_kwargs}`.
+Indexes are used to narrow down the amount of chunks to scan through when running a query. By default, each column
+has a range index (minimum and maximum values) and it's possible to add bloom filtering to speed up queries that
+involve equalities.
+
+Bloom filtering allows to trade off between the space overhead of the index and the probability of a false
+positive (claiming that an object contains a record when it actually doesn't, leading to extra scans).
+
+An example `index-options` dictionary:
+
+
+```
+{
+    "table": {
+        "bloom": {
+            "column_1": {
+                "probability": 0.01,   # Only one of probability
+                "size": 10000          # or size can be specified.
+            }
+        },
+        # Only compute the range index on these columns. By default,
+        # it's computed on all columns and is always computed on the
+        # primary key no matter what.
+        "range": ["column_2", "column_3"]
+    }
+}
+```
+
+### Options
+
+  * **`-s, --snap`**: Do not delta compress the changes and instead store the whole table again. This consumes more space, but makes checkouts faster.
+  * **`-c, --chunk-size INTEGER`**: Split new tables into chunks of this many rows (by primary key). The default value is governed by the SG_COMMIT_CHUNK_SIZE configuration parameter.
+  * **`-k, --chunk-sort-keys JSON`**: Sort the data inside each chunk by this/these key(s)
+  * **`-t, --split-changesets`**: Split changesets for existing tables across original chunk boundaries.
+  * **`-i, --index-options JSON`**: JSON dictionary of extra indexes to calculate on the new objects.
+  * **`-m, --message TEXT`**: Optional commit message
+  * **`-o, --overwrite`**: Overwrite physical objects that already exist
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0002_tag.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0002_tag.mdx
new file mode 100644
index 00000000..89f01837
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0002_tag.mdx
@@ -0,0 +1,36 @@
+export const meta = {id: "tag", title: "sgr tag", sidebarTitle: "tag", description: "Manage tags on images."};
+
+```sgr tag [OPTIONS] IMAGE_SPEC [TAG]```
+
+Manage tags on images.
+
+Depending on the exact invocation, this command can tag a Splitgraph image,
+list all tags in a repository or delete a tag.
+
+### Examples
+
+``sgr tag noaa/climate``
+
+List all tagged images in the ``noaa/climate`` repository and their tags.
+
+``sgr tag noaa/climate:abcdef1234567890``
+
+List all tags assigned to the image ``noaa/climate:abcdef1234567890...``
+
+``sgr tag noaa/climate:abcdef1234567890 my_new_tag``
+
+Tag the image ``noaa/climate:abcdef1234567890...`` with ``my_new_tag``. If the tag already exists, this will
+overwrite the tag.
+
+``sgr tag noaa/climate my_new_tag``
+
+Tag the current ``HEAD`` of ``noaa/climate`` with ``my_new_tag``.
+
+``sgr tag --delete noaa/climate:my_new_tag``
+
+Delete the tag ``my_new_tag`` from ``noaa/climate``.
+
+### Options
+
+  * **`-d, --delete`**: Delete the tag instead.
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0003_import.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0003_import.mdx
new file mode 100644
index 00000000..b69bbfb4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0003_import.mdx
@@ -0,0 +1,32 @@
+export const meta = {id: "import", title: "sgr import", sidebarTitle: "import", description: "Import tables into a Splitgraph repository."};
+
+```sgr import [OPTIONS] IMAGE_SPEC TABLE_OR_QUERY TARGET_REPOSITORY [TARGET_TABLE]```
+
+Import tables into a Splitgraph repository.
+
+Imports a table or a result of a query from a local Splitgraph repository or a Postgres schema into another
+Splitgraph repository.
+
+### Examples
+
+``sgr import noaa/climate:my_tag climate_data my/repository``
+
+Create a new image in ``my/repository`` with the ``climate_data`` table included. This links the new image to
+the physical object, meaning that the history of the ``climate_data`` table is preserved.
+
+If no tag is specified, the 'latest' (not the HEAD image or current state of the checked out image)
+image is used.
+
+``sgr import noaa/climate:my_tag "SELECT * FROM climate_data" my/repository climate_data``
+
+Create a new image in ``my/repository`` with the result of the query stored in the ``climate_data`` table. This
+creates a new physical object without any linkage to the original data, so the history of the ``climate_data``
+table isn't preserved. The SQL query can interact with multiple tables in the source image.
+
+``sgr import other_schema other_table my/repository``
+
+Since other_schema isn't a Splitgraph repository, this will copy ``other_schema.other_table``
+into a new Splitgraph object and add the ``other_table`` table to a new image in ``my/repository``.
+
+Note that importing doesn't discard or commit pending changes in the target Splitgraph repository: a new image
+is created with the new table added, the new table is materialized in the repository and the HEAD pointer is moved.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0004_reindex.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0004_reindex.mdx
new file mode 100644
index 00000000..b640ffe3
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/0004_reindex.mdx
@@ -0,0 +1,19 @@
+export const meta = {id: "reindex", title: "sgr reindex", sidebarTitle: "reindex", description: "Run extra indexes on a table."};
+
+```sgr reindex [OPTIONS] IMAGE_SPEC TABLE_NAME```
+
+Run extra indexes on a table. This will merge the indexing results for all objects
+that a table is formed from with the current object indexes. For explanation of
+what indexes do, see the documentation for `sgr commit`.
+
+If the objects haven't been downloaded yet, this will download them.
+
+Currently reindexing objects that change other objects is unsupported and will raise
+an error. Pass `-o` to ignore these objects and only reindex supported objects.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-i, --index-options JSON`**: JSON dictionary of extra indexes to calculate, e.g. '{"bloom": {"column_1": {"probability": 0.01}}}'  [required]
+  * **`-o, --ignore-patch-objects`**: Ignore objects that change other objects' rows instead of raising an error
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/metadata.json
new file mode 100644
index 00000000..9ef75b16
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0000_image-management-creation/metadata.json
@@ -0,0 +1 @@
+{"title": "Image management/creation"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0000_log.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0000_log.mdx
new file mode 100644
index 00000000..db5078b4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0000_log.mdx
@@ -0,0 +1,18 @@
+export const meta = {id: "log", title: "sgr log", sidebarTitle: "log", description: "Show the history of a Splitgraph repository/image."};
+
+```sgr log [OPTIONS] IMAGE_SPEC```
+
+Show the history of a Splitgraph repository/image.
+
+By default, this shows the history of the current branch, starting from the HEAD pointer and following its
+parent chain.
+
+Alternatively, it can follow the parent chain of any other image.
+
+If ``-t`` or ``--tree`` is passed, this instead renders the full image tree. The repository doesn't need to have
+been checked out in this case.
+
+### Options
+
+  * **`-t, --tree`**: 
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0001_diff.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0001_diff.mdx
new file mode 100644
index 00000000..8ef569e8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0001_diff.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "diff", title: "sgr diff", sidebarTitle: "diff", description: "Show differences between two Splitgraph images."};
+
+```sgr diff [OPTIONS] REPOSITORY [TAG_OR_HASH_1] [TAG_OR_HASH_2]```
+
+Show differences between two Splitgraph images.
+
+The two images must be in the same repository. The actual targets of this command depend
+on the number of arguments passed:
+
+``sgr diff REPOSITORY``
+
+Return the differences between the current HEAD image and the checked out schema.
+
+``sgr diff REPOSITORY TAG_OR_HASH``
+
+Return the differences between the image and its parent.
+
+``sgr diff REPOSITORY TAG_OR_HASH_1 TAG_OR_HASH_2``
+
+Return the differences from the first (earlier) image to the second image.
+
+### Options
+
+  * **`-v, --verbose`**: Include the actual differences rather than just the total number of updated rows.
+  * **`-t, --table-name TEXT`**: Show the differences for a single table.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0002_object.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0002_object.mdx
new file mode 100644
index 00000000..ff8c38a9
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0002_object.mdx
@@ -0,0 +1,14 @@
+export const meta = {id: "object", title: "sgr object", sidebarTitle: "object", description: "Show information about a Splitgraph object."};
+
+```sgr object [OPTIONS] OBJECT_ID```
+
+Show information about a Splitgraph object.
+
+Objects, or fragments, are building blocks of Splitgraph tables: each table consists of multiple immutable fragments
+that can partially overwrite each other. Each fragment might have a parent that it depends on. In addition,
+the smallest and largest values for every column are stored in the fragment's metadata. This information is used
+to choose which objects to download in order to execute a query against a table.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0003_objects.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0003_objects.mdx
new file mode 100644
index 00000000..c56fa727
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0003_objects.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "objects", title: "sgr objects", sidebarTitle: "objects", description: "List objects known to this engine."};
+
+```sgr objects [OPTIONS] ```
+
+List objects known to this engine.
+
+### Options
+
+  * **`--local`**: Show only objects that are physically present on this engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0004_show.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0004_show.mdx
new file mode 100644
index 00000000..4ddcc55d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0004_show.mdx
@@ -0,0 +1,14 @@
+export const meta = {id: "show", title: "sgr show", sidebarTitle: "show", description: "Show information about a Splitgraph image."};
+
+```sgr show [OPTIONS] IMAGE_SPEC```
+
+Show information about a Splitgraph image. This includes its parent, comment, size and creation time.
+
+Note that the size isn't the on-disk footprint, as the image might share some objects with other images
+or if some of the image's objects have not been downloaded.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0005_table.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0005_table.mdx
new file mode 100644
index 00000000..cc681c85
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0005_table.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "table", title: "sgr table", sidebarTitle: "table", description: "Show information about a table in a Splitgraph image."};
+
+```sgr table [OPTIONS] IMAGE_SPEC TABLE_NAME```
+
+Show information about a table in a Splitgraph image.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-v, --verbose`**: Show all of table's objects.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0006_sql.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0006_sql.mdx
new file mode 100644
index 00000000..ea8a304b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0006_sql.mdx
@@ -0,0 +1,34 @@
+export const meta = {id: "sql", title: "sgr sql", sidebarTitle: "sql", description: "Run an SQL statement against the Splitgraph engine."};
+
+```sgr sql [OPTIONS] SQL```
+
+Run an SQL statement against the Splitgraph engine.
+
+There are no restrictions on the contents of the statement: this is the same as running it
+from any other PostgreSQL client.
+
+If ``--schema`` is specified, the statement is run with the ``search_path`` set to that schema. This means
+that these statements are equivalent:
+
+
+```
+sgr sql "SELECT * FROM "noaa/climate".table"
+sgr sql -s noaa/climate "SELECT * FROM table"
+```
+
+If `--image` is specified, this will run the statement against that image using layered querying.
+Only read-only statements are supported. For example:
+
+
+```
+sgr sql -i noaa/climate:latest "SELECT * FROM table"
+```
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-s, --schema TEXT`**: Run SQL against this schema.
+  * **`-i, --image IMAGE`**: Run SQL against this image.
+  * **`-a, --show-all`**: Return all results of the query.
+  * **`-j, --json`**: Return results as JSON
+  * **`-n, --no-transaction`**: Don't wrap the SQL in a transaction.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0007_status.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0007_status.mdx
new file mode 100644
index 00000000..5e312f11
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/0007_status.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "status", title: "sgr status", sidebarTitle: "status", description: "Show the status of the Splitgraph engine."};
+
+```sgr status [OPTIONS] [REPOSITORY]```
+
+Show the status of the Splitgraph engine.
+
+If a repository is passed, show in-depth information about a repository.
+
+If not, show information about all repositories local to the engine. This will show a list
+of all repositories, number of local images and tags, total repository size (theoretical
+maximum size and current on-disk footprint of cached objects) and the current checked
+out image (with LQ if the image is checked out using read-only layered querying).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/metadata.json
new file mode 100644
index 00000000..a2c3f0f8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0001_image-information/metadata.json
@@ -0,0 +1 @@
+{"title": "Image information"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0000_engine-add.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0000_engine-add.mdx
new file mode 100644
index 00000000..c0b69417
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0000_engine-add.mdx
@@ -0,0 +1,26 @@
+export const meta = {id: "engine-add", title: "sgr engine add", sidebarTitle: "engine add", description: "Create and start a Splitgraph engine."};
+
+```sgr engine add [OPTIONS] [NAME]```
+
+Create and start a Splitgraph engine.
+
+This will pull the Splitgraph engine image, start it, create a Postgres user and initialize
+the engine.
+
+This also creates Docker volumes required to persist data/metadata.
+
+The engine Docker container by default will be named `splitgraph_engine_default` and
+its data and metadata volumes will have names `splitgraph_engine_default_data` and
+`splitgraph_engine_default_metadata`.
+
+### Options
+
+  * **`-i, --image TEXT`**: Docker image with the Splitgraph engine
+  * **`-p, --port INTEGER`**: Port to start the engine on
+  * **`-u, --username TEXT`**: 
+  * **`--no-init`**: Don't run `sgr init` on the engine
+  * **`--no-sgconfig`**: Don't add the engine to .sgconfig
+  * **`--inject-source`**: Inject the current Splitgraph source code into the engine using Docker bind mounts
+  * **`--no-pull`**: Don't pull the Docker image
+  * **`--set-default`**: Set the engine as the default engine in the config regardless of its name
+  * **`--password TEXT`**: 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0001_engine-delete.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0001_engine-delete.mdx
new file mode 100644
index 00000000..6229e082
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0001_engine-delete.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "engine-delete", title: "sgr engine delete", sidebarTitle: "engine delete", description: "Delete the Splitgraph engine container."};
+
+```sgr engine delete [OPTIONS] [NAME]```
+
+Delete the Splitgraph engine container.
+
+### Options
+
+  * **`-y, --yes`**: Do not prompt for confirmation.
+  * **`-f, --force`**: Delete the engine anyway if it's running.
+  * **`-v, --with-volumes`**: Include the engine's volumes (if not specified, volumes will be reattached when an engine with the same name is created).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0002_engine-list.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0002_engine-list.mdx
new file mode 100644
index 00000000..a2530db2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0002_engine-list.mdx
@@ -0,0 +1,13 @@
+export const meta = {id: "engine-list", title: "sgr engine list", sidebarTitle: "engine list", description: "List Splitgraph engines."};
+
+```sgr engine list [OPTIONS] ```
+
+List Splitgraph engines.
+
+This only lists Docker containers that were created by sgr engine
+(whose names start with `splitgraph_engine_`. To manage other engines,
+use Docker CLI directly.
+
+### Options
+
+  * **`-a, --include-all`**: Include stopped engine containers.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0003_engine-start.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0003_engine-start.mdx
new file mode 100644
index 00000000..4c9cdf6c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0003_engine-start.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "engine-start", title: "sgr engine start", sidebarTitle: "engine start", description: "Start a Splitgraph engine."};
+
+```sgr engine start [OPTIONS] [NAME]```
+
+Start a Splitgraph engine.
+
+This is a wrapper around the corresponding Docker command.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0004_engine-stop.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0004_engine-stop.mdx
new file mode 100644
index 00000000..7ea64786
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0004_engine-stop.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "engine-stop", title: "sgr engine stop", sidebarTitle: "engine stop", description: "Stop a Splitgraph engine."};
+
+```sgr engine stop [OPTIONS] [NAME]```
+
+Stop a Splitgraph engine.
+
+This is a wrapper around the corresponding Docker command.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0005_engine-upgrade.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0005_engine-upgrade.mdx
new file mode 100644
index 00000000..751cd998
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0005_engine-upgrade.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "engine-upgrade", title: "sgr engine upgrade", sidebarTitle: "engine upgrade", description: "Upgrade a Splitgraph engine."};
+
+```sgr engine upgrade [OPTIONS] [NAME]```
+
+Upgrade a Splitgraph engine.
+
+This consists of shutting down the current Splitgraph engine,
+deleting its Docker container (keeping the actual data and
+metadata volumes intact), creating a container based on a newer
+image and finally reinitializing the engine to perform needed migrations.
+
+### Options
+
+  * **`-i, --image TEXT`**: Docker image with the Splitgraph engine
+  * **`--no-pull`**: Don't pull the new engine image
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0006_engine-log.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0006_engine-log.mdx
new file mode 100644
index 00000000..58859523
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0006_engine-log.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "engine-log", title: "sgr engine log", sidebarTitle: "engine log", description: "Get logs from a Splitgraph engine."};
+
+```sgr engine log [OPTIONS] [NAME]```
+
+Get logs from a Splitgraph engine.
+
+### Options
+
+  * **`-f, --follow`**: Stream logs
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0007_engine-configure.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0007_engine-configure.mdx
new file mode 100644
index 00000000..1be8adcd
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0007_engine-configure.mdx
@@ -0,0 +1,10 @@
+export const meta = {id: "engine-configure", title: "sgr engine configure", sidebarTitle: "engine configure", description: "Inject a configuration file into an engine."};
+
+```sgr engine configure [OPTIONS] [NAME]```
+
+Inject a configuration file into an engine.
+
+This copies the current .sgconfig file (pointed to by SG_CONFIG_FILE) into
+the engine container, making it use that configuration for
+when it's queried through an application other than the sgr client
+(layered querying).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0008_engine-version.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0008_engine-version.mdx
new file mode 100644
index 00000000..d47bfe05
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/0008_engine-version.mdx
@@ -0,0 +1,5 @@
+export const meta = {id: "engine-version", title: "sgr engine version", sidebarTitle: "engine version", description: "Get version of Splitgraph engine."};
+
+```sgr engine version [OPTIONS] [NAME]```
+
+Get version of Splitgraph engine.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/metadata.json
new file mode 100644
index 00000000..3f70a9d2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0002_engine-management/metadata.json
@@ -0,0 +1 @@
+{"title": "Engine management"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/0000_csv-export.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/0000_csv-export.mdx
new file mode 100644
index 00000000..8408f9f2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/0000_csv-export.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "csv-export", title: "sgr csv export", sidebarTitle: "csv export", description: "Export the result of a query as CSV."};
+
+```sgr csv export [OPTIONS] IMAGE_SPEC QUERY```
+
+Export the result of a query as CSV.
+
+### Examples
+
+`sgr csv export noaa/climate "SELECT * FROM rainfall"`
+
+Output everything in the currently checked-out `"rainfall"` table as CSV.
+
+`sgr csv export noaa/climate:dec_2018 "SELECT * FROM rainfall WHERE state = 'AZ' -f dec_2018_az.csv`
+
+Check out the `dec_2018` tag of `noaa/climate` and output values from `"rainfall"` for Arizona to `dec_2018_az.csv`
+
+`sgr csv export --layered noaa/climate:abcdef1234567890 "SELECT * FROM rainfall JOIN other_table ON..."`
+
+Uses layered querying instead to execute a join on tables in a certain image (satisfying the query without
+having to check the image out).
+
+### Options
+
+  * **`-f, --file FILENAME`**: File name to export to, default stdout.
+  * **`-l, --layered`**: Don't materialize the tables, use layered querying instead.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/0001_csv-import.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/0001_csv-import.mdx
new file mode 100644
index 00000000..5f3eb655
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/0001_csv-import.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "csv-import", title: "sgr csv import", sidebarTitle: "csv import", description: "Import a CSV file into a checked-out Splitgraph repository."};
+
+```sgr csv import [OPTIONS] REPOSITORY TABLE```
+
+Import a CSV file into a checked-out Splitgraph repository. This doesn't create a new image, use `sgr commit`
+after the import and any adjustments (e.g. adding primary keys or converting column types) to do so.
+
+If the target table doesn't exist, this will create a new table.
+
+If the target table does exist, this will try and patch the new values in by updating rows that exist in the
+current table (as per its primary key constraints) and inserting new ones. Rows existing in the current table
+but missing in the CSV won't be deleted.
+
+If `-r` is passed, the table will instead be deleted and recreated from the CSV file if it exists.
+
+### Options
+
+  * **`-f, --file FILENAME`**: File name to import data from, default stdin.
+  * **`-r, --replace`**: Replace the table if it already exists.
+  * **`-k, --primary-key TEXT`**: Use the specified column(s) as primary key(s)
+  * **`-t, --override-type <TEXT TEXT>...`**: Explicitly set types of these columns to PG types
+  * **`--encoding TEXT`**: Encoding to use for the CSV file
+  * **`--separator TEXT`**: CSV separator to use
+  * **`--no-header`**: Treats the first line of the CSV as data rather than a header.
+  * **`--skip-schema-check`**: Skips checking that the dataframe is compatible with the target schema.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/0002_mount.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/0002_mount.mdx
new file mode 100644
index 00000000..85bcb7f5
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/0002_mount.mdx
@@ -0,0 +1,10 @@
+export const meta = {id: "mount", title: "sgr mount", sidebarTitle: "mount", description: "Mount foreign databases as Postgres schemas."};
+
+```sgr mount [OPTIONS] ```
+
+Mount foreign databases as Postgres schemas.
+
+Uses the Postgres FDW interface to create a local Postgres schema with foreign tables that map
+to tables in other databases.
+
+See a given mount handler's documentation for handler-specific parameters.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/metadata.json
new file mode 100644
index 00000000..d82f5068
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0003_data-import-export/metadata.json
@@ -0,0 +1 @@
+{"title": "Data import/export"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0000_rm.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0000_rm.mdx
new file mode 100644
index 00000000..47baf9a3
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0000_rm.mdx
@@ -0,0 +1,40 @@
+export const meta = {id: "rm", title: "sgr rm", sidebarTitle: "rm", description: "Delete schemas, repositories or images."};
+
+```sgr rm [OPTIONS] IMAGE_SPEC```
+
+Delete schemas, repositories or images.
+
+If the target of this command is a Postgres schema, this performs DROP SCHEMA CASCADE.
+
+If the target of this command is a Splitgraph repository, this deletes the repository and all of its history.
+
+If the target of this command is an image, this deletes the image and all of its children.
+
+In any case, this command will ask for confirmation of the deletion, unless ``-y`` is passed. If ``-r``
+(``--remote``), is passed, this will perform deletion on a remote Splitgraph engine (registered in the config)
+instead, assuming the user has write access to the remote repository.
+
+This does not delete any physical objects that the deleted repository/images depend on:
+use ``sgr cleanup`` to do that.
+
+### Examples
+
+``sgr rm temporary_schema``
+
+Deletes ``temporary_schema`` from the local engine.
+
+``sgr rm --remote data.splitgraph.com username/repo``
+
+Deletes ``username/repo`` from the Splitgraph registry.
+
+``sgr rm -y username/repo:old_branch``
+
+Deletes the image pointed to by ``old_branch`` as well as all of its children (images created by a commit based
+on this image), as well as all of the tags that point to now deleted images, without asking for confirmation.
+Note this will not delete images that import tables from the deleted images via Splitfiles or indeed the
+physical objects containing the actual tables.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-y, --yes`**: Agree to deletion without confirmation
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0001_init.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0001_init.mdx
new file mode 100644
index 00000000..e4ab8d4d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0001_init.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "init", title: "sgr init", sidebarTitle: "init", description: "Initialize a new repository/engine."};
+
+```sgr init [OPTIONS] [REPOSITORY]```
+
+Initialize a new repository/engine.
+
+### Examples
+
+`sgr init`
+
+Initializes the current local Splitgraph engine by writing some bookkeeping information.
+This is required for the rest of sgr to work.
+
+`sgr init --skip-object-handling`
+
+Initializes a Splitgraph engine without installing audit triggers or object management routines:
+this is useful for engines that aren't intended to be used for image checkouts.
+
+``sgr init new/repo``
+
+Creates a single image with the hash ``00000...`` in ``new/repo``
+
+### Options
+
+  * **`--skip-object-handling`**: 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0002_cleanup.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0002_cleanup.mdx
new file mode 100644
index 00000000..c23688a4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0002_cleanup.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "cleanup", title: "sgr cleanup", sidebarTitle: "cleanup", description: "Prune unneeded objects from the engine."};
+
+```sgr cleanup [OPTIONS] ```
+
+Prune unneeded objects from the engine.
+
+This deletes all objects from the cache that aren't required by any local repository.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0003_prune.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0003_prune.mdx
new file mode 100644
index 00000000..64c2d49b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0003_prune.mdx
@@ -0,0 +1,20 @@
+export const meta = {id: "prune", title: "sgr prune", sidebarTitle: "prune", description: "Cleanup dangling images from a repository."};
+
+```sgr prune [OPTIONS] REPOSITORY```
+
+Cleanup dangling images from a repository.
+
+This includes images not pointed to by any tags (or checked out) and those that aren't required by any of
+such images.
+
+Will ask for confirmation of the deletion, unless ``-y ``is passed. If ``-r`` (``--remote``) is
+passed, this will perform deletion on a remote Splitgraph engine (registered in the config) instead, assuming
+the user has write access to the remote repository.
+
+This does not delete any physical objects that the deleted repository/images depend on:
+use ``sgr cleanup`` to do that.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-y, --yes`**: Agree to deletion without confirmation
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0004_config.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0004_config.mdx
new file mode 100644
index 00000000..7fcaa53c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0004_config.mdx
@@ -0,0 +1,33 @@
+export const meta = {id: "config", title: "sgr config", sidebarTitle: "config", description: "Print the current Splitgraph configuration."};
+
+```sgr config [OPTIONS] ```
+
+Print the current Splitgraph configuration.
+
+This takes into account the local config file, the default values
+and all overrides specified via environment variables.
+
+This command can be used to dump the current Splitgraph configuration into a file:
+
+```
+sgr config --no-shielding --config-format > .sgconfig
+```
+
+...or save a config file overriding an entry:
+
+```
+SG_REPO_LOOKUP=engine1,engine2 sgr config -sc > .sgconfig
+```
+
+If `--conn-string` is passed, this prints out a libpq connection string
+that can be used to connect to the default Splitgraph engine with other tools:
+
+```
+pgcli $(sgr config -n)
+```
+
+### Options
+
+  * **`-s, --no-shielding`**: If set, doesn't replace sensitive values (like passwords) with asterisks
+  * **`-c, --config-format`**: Output configuration in the Splitgraph config file format
+  * **`-n, --conn-string`**: Print a libpq connection string to the engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0005_dump.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0005_dump.mdx
new file mode 100644
index 00000000..111baceb
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0005_dump.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "dump", title: "sgr dump", sidebarTitle: "dump", description: "Dump a repository to SQL."};
+
+```sgr dump [OPTIONS] REPOSITORY```
+
+Dump a repository to SQL.
+
+### Options
+
+  * **`--exclude-object-contents`**: Don't dump the commands needed to recreate objects required by the repository.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0006_eval.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0006_eval.mdx
new file mode 100644
index 00000000..5b4b7f0a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0006_eval.mdx
@@ -0,0 +1,39 @@
+export const meta = {id: "eval", title: "sgr eval", sidebarTitle: "eval", description: "Evaluate a Python snippet using the Splitgraph API."};
+
+```sgr eval [OPTIONS] COMMAND```
+
+Evaluate a Python snippet using the Splitgraph API.
+
+This is for advanced users only and should be only used
+if you know what you are doing.
+
+Normal Python statements are supported and the command is evaluated
+in a namespace where the following is already imported and available:
+
+  * Repository: class that instantiates a Splitgraph repository and makes
+    API functions like .commit(), .checkout() etc available.
+
+  * engine: Current local engine
+
+  * object_manager: an instance of ObjectManager that allows
+    to get information about objects and manage the object cache.
+
+
+Example:
+```
+sgr eval 'import json; print(json.dumps(Repository\
+    .from_schema(repo_name)\
+    .images["latest"]\
+    .get_table(table_name)\
+    .table_schema))' \
+-a repo_name my_repo -a table_name my_table
+```
+
+Will dump the schema of table my_table in the most recent image in my_repo in JSON format.
+
+For more information, see the Splitgraph API reference.
+
+### Options
+
+  * **`--i-know-what-im-doing`**: Pass this if you're sure that the code you're running is safe and don't want to be prompted.
+  * **`-a, --arg <TEXT TEXT>...`**: Make extra variables available in the command's namespace
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0007_upgrade.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0007_upgrade.mdx
new file mode 100644
index 00000000..188e798b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/0007_upgrade.mdx
@@ -0,0 +1,17 @@
+export const meta = {id: "upgrade", title: "sgr upgrade", sidebarTitle: "upgrade", description: "Upgrade sgr client and engine."};
+
+```sgr upgrade [OPTIONS] [VERSION]```
+
+Upgrade sgr client and engine.
+
+This will try to download the most recent stable binary for the current platform
+into the location this binary is running from and then upgrade the default engine.
+
+This method is only supported for single-binary installs and engines managed
+by `sgr engine`.
+
+### Options
+
+  * **`--skip-engine-upgrade`**: Only upgrade the client
+  * **`--path TEXT`**: Override the path to download the new binary to.
+  * **`--force`**: Reinstall older/same versions.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/metadata.json
new file mode 100644
index 00000000..26f7a103
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0004_miscellaneous/metadata.json
@@ -0,0 +1 @@
+{"title": "Miscellaneous"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0000_clone.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0000_clone.mdx
new file mode 100644
index 00000000..7c2929bd
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0000_clone.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "clone", title: "sgr clone", sidebarTitle: "clone", description: "Clone a remote Splitgraph repository/image into a local one."};
+
+```sgr clone [OPTIONS] REMOTE_REPOSITORY_OR_IMAGE [LOCAL_REPOSITORY]```
+
+Clone a remote Splitgraph repository/image into a local one.
+
+The lookup path for the repository is governed by the ``SG_REPO_LOOKUP`` and ``SG_REPO_LOOKUP_OVERRIDE``
+config parameters and can be overridden by the command line ``--remote`` option.
+
+### Options
+
+  * **`-r, --remote TEXT`**: Name of the remote engine
+  * **`-d, --download-all`**: Download all objects immediately instead of on checkout.
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing objects
+  * **`-t, --tags`**: Overwrite tags for pulled image/repo
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0001_push.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0001_push.mdx
new file mode 100644
index 00000000..60ba1e17
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0001_push.mdx
@@ -0,0 +1,30 @@
+export const meta = {id: "push", title: "sgr push", sidebarTitle: "push", description: "Push images the Splitgraph registry or another engine."};
+
+```sgr push [OPTIONS] REPOSITORY_OR_IMAGE [REMOTE_REPOSITORY]```
+
+Push images the Splitgraph registry or another engine.
+
+If an image is not specified (e.g. `sgr push noaa/climate`, this will push all new images.
+
+By default, the repository will be pushed to a repository with the same name in the user's namespace
+(SG_NAMESPACE configuration value which defaults to the username).
+
+If there's a single engine registered in the config (e.g. data.splitgraph.com), it shall be the default
+destination.
+
+If an upstream repository/engine has been configured for this engine with `sgr upstream`,
+it will be used instead.
+
+Finally, if `remote_repository` or `--remote` are passed, they will take precedence.
+
+The actual objects will be uploaded to S3 using Minio. When pushing to another engine,
+you can choose to upload them directly by passing `--handler DB`.
+
+### Options
+
+  * **`-r, --remote []`**: Name of the remote engine
+  * **`-h, --upload-handler TEXT`**: Upload handler
+  * **`-o, --upload-handler-options JSON`**: Upload handler parameters
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing remote objects
+  * **`-t, --tags`**: Overwrite tags for pushed image/repo
+  * **`-u, --reupload-objects`**: Reupload objects that metadata is pushed out for
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0002_pull.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0002_pull.mdx
new file mode 100644
index 00000000..d1b631d1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0002_pull.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "pull", title: "sgr pull", sidebarTitle: "pull", description: "Pull changes / download a single image."};
+
+```sgr pull [OPTIONS] REPOSITORY_OR_IMAGE```
+
+Pull changes / download a single image.
+
+### Options
+
+  * **`-d, --download-all`**: Download all objects immediately instead of on checkout.
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing objects
+  * **`-t, --tags`**: Overwrite tags for pulled image/repo
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0003_upstream.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0003_upstream.mdx
new file mode 100644
index 00000000..32f1d6ec
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/0003_upstream.mdx
@@ -0,0 +1,29 @@
+export const meta = {id: "upstream", title: "sgr upstream", sidebarTitle: "upstream", description: "Get or set the upstream for a repository."};
+
+```sgr upstream [OPTIONS] REPOSITORY```
+
+Get or set the upstream for a repository.
+
+This shows the default repository used for pushes and pulls as well as allows to change it to a different
+remote engine and repository.
+
+The remote engine alias must exist in the config file.
+
+### Examples
+
+``sgr upstream my/repo --set splitgraph.com username/repo``
+
+Sets the upstream for ``my/repo`` to ``username/repo`` existing on the ``splitgraph.com`` engine
+
+``sgr upstream my/repo --reset``
+
+Removes the upstream for ``my/repo``.
+
+``sgr upstream my/repo``
+
+Shows the current upstream for ``my/repo``.
+
+### Options
+
+  * **`-s, --set <TEXT REPOSITORY>...`**: Set the upstream to a engine alias + repository
+  * **`-r, --reset`**: Delete the upstream
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/metadata.json
new file mode 100644
index 00000000..b2c1ab8d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0005_sharing-images/metadata.json
@@ -0,0 +1 @@
+{"title": "Sharing images"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0000_build.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0000_build.mdx
new file mode 100644
index 00000000..2204aae2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0000_build.mdx
@@ -0,0 +1,29 @@
+export const meta = {id: "build", title: "sgr build", sidebarTitle: "build", description: "Build Splitgraph images."};
+
+```sgr build [OPTIONS] SPLITFILE```
+
+Build Splitgraph images.
+
+This executes a Splitfile, building a new image or checking it out from cache if the same
+image had already been built.
+
+### Examples
+
+``sgr build my.splitfile``
+
+Executes ``my.splitfile`` and writes its output into a new repository with the same name
+as the Splitfile (my) unless the name is specified in the Splitfile.
+
+``sgr build my.splitfile -o mynew/repo``
+
+Executes ``my.splitfile`` and writes its output into ``mynew/repo``.
+
+``sgr build my_other.splitfile -o mynew/otherrepo --args PARAM1 VAL1 --args PARAM2 VAL2``
+
+Executes ``my_other.splitfile`` with parameters ``PARAM1`` and ``PARAM2`` set to
+``VAL1`` and  ``VAL2``, respectively.
+
+### Options
+
+  * **`-a, --args <TEXT TEXT>...`**: Parameters to be substituted into the Splitfile. All parameters mentioned in the file must be specified in order for the Splitfile to be executed.
+  * **`-o, --output-repository REPOSITORY`**: Repository to store the result in.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0001_rebuild.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0001_rebuild.mdx
new file mode 100644
index 00000000..8194b0f1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0001_rebuild.mdx
@@ -0,0 +1,27 @@
+export const meta = {id: "rebuild", title: "sgr rebuild", sidebarTitle: "rebuild", description: "Rebuild images against different dependencies."};
+
+```sgr rebuild [OPTIONS] IMAGE_SPEC```
+
+Rebuild images against different dependencies.
+
+Examines the provenance of a Splitgraph image created by a Splitfile and reruns it against different images than
+the ones that were imported by the original run.
+
+### Examples
+
+``sgr rebuild my/repo --against noaa/climate:old_data``
+
+Reconstructs the Splitfile used to create ``my/repo:latest``, replaces all imports from ``noaa/climate`` with
+imports from ``noaa/climate:old_data`` and reruns the Splitfile.
+
+``sgr rebuild my/repo:other_tag -u``
+
+Rebuilds ``my_repo:other_tag`` against the latest versions of all of its dependencies.
+
+Image caching still works in this case: if the result of the rebuild already exists, the image will be checked
+out.
+
+### Options
+
+  * **`-u, --update`**: Rederive the image against the latest version of all dependencies.
+  * **`-a, --against IMAGE`**: Images to substitute into the reconstructed Splitfile, of the form [NAMESPACE/]REPOSITORY[:HASH_OR_TAG]. Default tag is 'latest'.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0002_provenance.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0002_provenance.mdx
new file mode 100644
index 00000000..45d3a5a8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0002_provenance.mdx
@@ -0,0 +1,62 @@
+export const meta = {id: "provenance", title: "sgr provenance", sidebarTitle: "provenance", description: "Reconstruct the provenance of an image."};
+
+```sgr provenance [OPTIONS] IMAGE_SPEC```
+
+Reconstruct the provenance of an image.
+
+This inspects the image to produce a list of images that were used by the Splitfile
+that created it, or a Splitfile with the same effect.
+
+`IMAGE_SPEC` must be of the form `[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]`.
+If no tag is specified, `latest` is used.
+
+### Examples
+
+Assume `my/repo` is produced by the following Splitfile:
+
+```
+FROM MOUNT [...] IMPORT external_table
+FROM noaa/climate IMPORT {SELECT * FROM rainfall_data WHERE state = 'AZ'} AS rainfall_data
+```
+
+`my/repo` will have 2 images: one having `hash_1` (with the `external_table` imported from a mounted database)
+and one having `hash_2` (with both `external_table` and the `rainfall_data` containing the result
+of the query run against the then-latest image in the `noaa/climate` repository).
+
+In this case:
+
+```
+sgr provenance my/repo
+```
+
+Returns a list of repositories and images that were imported by the Splitfile that constructed this image::
+
+```
+my/repo:[hash_2] depends on:
+noaa/climate:[hash_3]
+```
+
+Where `hash_3` is the hash of the latest image in the `noaa/climate` repository at the time the original
+Splitfile was run. However:
+
+```
+sgr provenance -f my/repo
+```
+
+Will try to reconstruct the Splitfile that can be used to build this image. Since the FROM MOUNT command isn't
+reproducible (requires access to the original external database, which is a moving target), this will fail.
+
+If `-e` is passed, this will emit information about irreproducible commands instead of failing.
+
+```
+sgr provenance -ef my/repo
+
+# Splitfile commands used to reconstruct my/repo:[image_hash]
+# Irreproducible Splitfile command of type MOUNT
+FROM noaa/climate:[hash_3] IMPORT {SELECT * FROM rainfall_data WHERE state = 'AZ'}
+```
+
+### Options
+
+  * **`-f, --full`**: Recreate the Splitfile used to create this image
+  * **`-e, --ignore-errors`**: If set, ignore commands that aren't reproducible (like MOUNT or custom commands)
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0003_dependents.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0003_dependents.mdx
new file mode 100644
index 00000000..fc8bc234
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/0003_dependents.mdx
@@ -0,0 +1,21 @@
+export const meta = {id: "dependents", title: "sgr dependents", sidebarTitle: "dependents", description: "List images that were created from an image."};
+
+```sgr dependents [OPTIONS] IMAGE_SPEC```
+
+List images that were created from an image.
+
+This is the inverse of the sgr provenance command. It will list all images that were
+created using a Splitfile that imported data from this image.
+
+By default, this will look at images on the local engine. The engine can be overridden
+with --source-on and --dependents-on. For example:
+
+    sgr dependents --source-on data.splitgraph.com --dependents-on LOCAL noaa/climate:latest
+
+will show all images on the local engine that derived data from `noaa/climate:latest`
+on the Splitgraph registry.
+
+### Options
+
+  * **`-O, --source-on TEXT`**: Override the engine to look the source up on
+  * **`-o, --dependents-on TEXT`**: Override the engine to list dependents from
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/metadata.json
new file mode 100644
index 00000000..50afd08a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0006_splitfile-execution/metadata.json
@@ -0,0 +1 @@
+{"title": "Splitfile execution"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0000_cloud-register.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0000_cloud-register.mdx
new file mode 100644
index 00000000..089ce0c6
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0000_cloud-register.mdx
@@ -0,0 +1,18 @@
+export const meta = {id: "cloud-register", title: "sgr cloud register", sidebarTitle: "cloud register", description: "Register the user on a Splitgraph registry."};
+
+```sgr cloud register [OPTIONS] ```
+
+Register the user on a Splitgraph registry.
+
+By default, this registers the user on data.splitgraph.com,
+obtains a set of machine (API) credentials for the client to communicate
+with the registry and configures the data.splitgraph.com engine.
+
+### Options
+
+  * **`--username TEXT`**: 
+  * **`--password TEXT`**: 
+  * **`--email TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to register on.
+  * **`--accept-tos`**: Accept the registry's Terms of Service
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0001_cloud-login.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0001_cloud-login.mdx
new file mode 100644
index 00000000..cb99d6c1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0001_cloud-login.mdx
@@ -0,0 +1,23 @@
+export const meta = {id: "cloud-login", title: "sgr cloud login", sidebarTitle: "cloud login", description: "Log into a Splitgraph registry with username/password."};
+
+```sgr cloud login [OPTIONS] ```
+
+Log into a Splitgraph registry with username/password.
+
+This will generate a new refresh token (to use the Splitgraph query API)
+and API keys to let sgr access the registry (if they don't already exist
+in the configuration file or if the actual username has changed).
+
+Note that if you already have generated an API key pair but it's not
+in the configuration file, this will generate a new pair instead of
+restoring the existing one, as the API secret is only stored in the configuration file.
+
+If you want to log in using an existing API key pair, use `sgr cloud login-api` instead.
+
+### Options
+
+  * **`--username TEXT`**: 
+  * **`--password TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`--overwrite`**: Overwrite old API keys in the config if they exist
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0002_cloud-login-api.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0002_cloud-login-api.mdx
new file mode 100644
index 00000000..4007fe22
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0002_cloud-login-api.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "cloud-login-api", title: "sgr cloud login-api", sidebarTitle: "cloud login-api", description: "Log into a Splitgraph registry using existing API keys."};
+
+```sgr cloud login-api [OPTIONS] ```
+
+Log into a Splitgraph registry using existing API keys.
+
+This will inject the API keys for the registry into the configuration file
+and generate a new access token.
+
+### Options
+
+  * **`--api-key TEXT`**: 
+  * **`--api-secret TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0003_cloud-sql.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0003_cloud-sql.mdx
new file mode 100644
index 00000000..56c4be0a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0003_cloud-sql.mdx
@@ -0,0 +1,20 @@
+export const meta = {id: "cloud-sql", title: "sgr cloud sql", sidebarTitle: "cloud sql", description: "Run SQL on or connect to the Splitgraph Data Delivery Network."};
+
+```sgr cloud sql [OPTIONS] [QUERY]```
+
+Run SQL on or connect to the Splitgraph Data Delivery Network.
+
+If a query isn't passed, this will return a libpq-compatible connection string to
+the registry's SQL endpoint. It can be used to connect to the endpoint with other SQL clients:
+
+```
+pgcli $(sgr cloud sql)
+```
+
+If a query is passed, this will run an SQL query against the SQL endpoint.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`-a, --show-all`**: Return all results of the query.
+  * **`-j, --json`**: Return results as JSON
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0004_cloud-curl.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0004_cloud-curl.mdx
new file mode 100644
index 00000000..e902965b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0004_cloud-curl.mdx
@@ -0,0 +1,32 @@
+export const meta = {id: "cloud-curl", title: "sgr cloud curl", sidebarTitle: "cloud curl", description: "Query a Splitgraph REST API."};
+
+```sgr cloud curl [OPTIONS] IMAGE [REQUEST_PARAMS]```
+
+Query a Splitgraph REST API.
+
+This is a thin wrapper around curl that performs an HTTP request to Splitgraph Cloud to
+interact with a dataset using PostgREST (http://postgrest.org) or the Splitfile execution service.
+
+The actual invocation is:
+
+```
+curl [API endpoint][request] -H [access_token] [extra curl args].
+```
+
+The image must be of the form `namespace/repository:[hash_or_tag (default latest)]`.
+
+The actual request parameters depend on the request type:
+
+  * For PostgREST: `/table?[postgrest request]` or empty to get the OpenAPI spec for this image.
+    For a reference on how to perform Postgrest requests, see http://postgrest.org/en/latest/api.html.
+  * For the Splitfile executor: a JSON array to be POSTed to the executor, e.g.
+    `'{"command": "FROM some/repo IMPORT some_table AS alias", "tag": "new_tag"}'`.
+
+`--curl-args` allows to pass extra arguments to curl. Note that every argument must be prefixed
+with `--curl-args`, e.g. `--curl-args --cacert --curl-args /path/to/ca.pem`.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`-t, --request-type [postgrest|splitfile]`**: 
+  * **`-c, --curl-args TEXT`**: Extra arguments to be passed to curl
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0005_cloud-readme.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0005_cloud-readme.mdx
new file mode 100644
index 00000000..4d800dc6
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0005_cloud-readme.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "cloud-readme", title: "sgr cloud readme", sidebarTitle: "cloud readme", description: "Upload or a README to a Splitgraph repository."};
+
+```sgr cloud readme [OPTIONS] REPOSITORY README```
+
+Upload or a README to a Splitgraph repository.
+
+The repository must have already been pushed. The README must be a file in Markdown format.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0006_cloud-description.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0006_cloud-description.mdx
new file mode 100644
index 00000000..003c953f
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0006_cloud-description.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "cloud-description", title: "sgr cloud description", sidebarTitle: "cloud description", description: "Upload a description to a Splitgraph repository."};
+
+```sgr cloud description [OPTIONS] REPOSITORY DESCRIPTION```
+
+Upload a description to a Splitgraph repository.
+
+The repository must have already been pushed. The description should be plain text, 160 characters or shorter.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0007_cloud-metadata.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0007_cloud-metadata.mdx
new file mode 100644
index 00000000..c9691e3b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0007_cloud-metadata.mdx
@@ -0,0 +1,19 @@
+export const meta = {id: "cloud-metadata", title: "sgr cloud metadata", sidebarTitle: "cloud metadata", description: "Upload a metadata file to a Splitgraph repository."};
+
+```sgr cloud metadata [OPTIONS] REPOSITORY [METADATA_FILE]```
+
+Upload a metadata file to a Splitgraph repository.
+
+    The metadata file should be in YAML format and have two keys: `readme` and `description`.
+
+    For example:
+
+```
+readme: dataset-readme.md
+description: Dataset description (160 characters max).
+```
+    
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0008_cloud-search.mdx b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0008_cloud-search.mdx
new file mode 100644
index 00000000..c23c31f4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/0008_cloud-search.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "cloud-search", title: "sgr cloud search", sidebarTitle: "cloud search", description: "Search for a repository on the Splitgraph registry."};
+
+```sgr cloud search [OPTIONS] QUERY```
+
+Search for a repository on the Splitgraph registry.
+
+For more advanced search, including filtering by topics, go to the registry's website itself.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`--limit INTEGER RANGE`**: Number of results to return
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/metadata.json
new file mode 100644
index 00000000..25ba655e
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/0007_splitgraph-cloud/metadata.json
@@ -0,0 +1 @@
+{"title": "Splitgraph Cloud"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.2/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.2/metadata.json
new file mode 100644
index 00000000..83cdb8ee
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.2/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.2",
+  "updated_at": "2021-01-26T14:47:57.262Z",
+  "release": {
+    "id": 31385261,
+    "tag_name": "v0.2.2",
+    "target_commitish": "a1628dabe4d84b03494a3450ba275ab4f7e67b17",
+    "created_at": "2020-09-16T08:26:31Z",
+    "published_at": "2020-09-16T09:01:32Z",
+    "assets": [
+      {
+        "id": 25742983,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/25742983",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-09-16T08:51:37Z",
+        "updated_at": "2020-09-16T08:51:38Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.2/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0000_checkout.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0000_checkout.mdx
new file mode 100644
index 00000000..cc805a26
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0000_checkout.mdx
@@ -0,0 +1,30 @@
+export const meta = {id: "checkout", title: "sgr checkout", sidebarTitle: "checkout", description: "Check out a Splitgraph image into a Postgres schema."};
+
+```sgr checkout [OPTIONS] IMAGE_SPEC```
+
+Check out a Splitgraph image into a Postgres schema.
+
+This downloads the required physical objects and materializes all tables, unless ``-l`` or ``--layered`` is passed,
+in which case the objects are downloaded and a foreign data wrapper is set up on the engine to satisfy read-only
+queries by combining results from each table's fragments.
+
+Tables checked out in this way are still presented as normal Postgres tables and can queried in the same way.
+Since the tables aren't materialized, layered querying is faster to set up, but since each query now results in a
+subquery to each object comprising the table, actual query execution is slower than to materialized Postgres tables.
+
+Layered querying is only supported for read-only queries.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. Note that currently, the schema that the
+image is checked out into has to have the same name as the repository. If no image hash or tag is passed,
+"HEAD" is assumed.
+
+If ``-u`` or ``--uncheckout`` is passed, this instead deletes the checked out schema (assuming there are no pending
+changes) and removes the HEAD pointer.
+
+If ``--force`` isn't passed and the schema has pending changes, this will fail.
+
+### Options
+
+  * **`-f, --force`**: Discard all pending changes to the schema
+  * **`-u, --uncheckout`**: Delete the checked out copy instead
+  * **`-l, --layered`**: Don't materialize the tables, use layered querying instead.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0001_commit.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0001_commit.mdx
new file mode 100644
index 00000000..9a2ec1f1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0001_commit.mdx
@@ -0,0 +1,59 @@
+export const meta = {id: "commit", title: "sgr commit", sidebarTitle: "commit", description: "Commit changes to a checked-out Splitgraph repository."};
+
+```sgr commit [OPTIONS] REPOSITORY```
+
+Commit changes to a checked-out Splitgraph repository.
+
+This packages up all changes into a new image. Where a table hasn't been created or had its schema changed,
+this will delta compress the changes. For all other tables (or if ``-s`` has been passed), this will
+store them as full table snapshots.
+
+When a table is stored as a full snapshot, `--chunk-size` sets the maximum size, in rows, of the fragments
+that the table will be split into (default is no splitting). The splitting is done by the
+table's primary key.
+
+If `--split-changesets` is passed, delta-compressed changes will also be split up according to the original
+table chunk boundaries. For example, if there's a change to the first and the 20000th row of a table that was
+originally committed with `--chunk-size=10000`, this will create 2 fragments: one based on the first chunk
+and one on the second chunk of the table.
+
+If `--chunk-sort-keys` is passed, data inside the chunk is sorted by this key (or multiple keys).
+This helps speed up queries on those keys for storage layers than can leverage that (e.g. CStore). The expected format is JSON, e.g. `{table_1: [col_1, col_2]}`
+
+`--index-options` expects a JSON-serialized dictionary of `{table: index_type: column: index_specific_kwargs}`.
+Indexes are used to narrow down the amount of chunks to scan through when running a query. By default, each column
+has a range index (minimum and maximum values) and it's possible to add bloom filtering to speed up queries that
+involve equalities.
+
+Bloom filtering allows to trade off between the space overhead of the index and the probability of a false
+positive (claiming that an object contains a record when it actually doesn't, leading to extra scans).
+
+An example `index-options` dictionary:
+
+
+```
+{
+    "table": {
+        "bloom": {
+            "column_1": {
+                "probability": 0.01,   # Only one of probability
+                "size": 10000          # or size can be specified.
+            }
+        },
+        # Only compute the range index on these columns. By default,
+        # it's computed on all columns and is always computed on the
+        # primary key no matter what.
+        "range": ["column_2", "column_3"]
+    }
+}
+```
+
+### Options
+
+  * **`-s, --snap`**: Do not delta compress the changes and instead store the whole table again. This consumes more space, but makes checkouts faster.
+  * **`-c, --chunk-size INTEGER`**: Split new tables into chunks of this many rows (by primary key). The default value is governed by the SG_COMMIT_CHUNK_SIZE configuration parameter.
+  * **`-k, --chunk-sort-keys JSON`**: Sort the data inside each chunk by this/these key(s)
+  * **`-t, --split-changesets`**: Split changesets for existing tables across original chunk boundaries.
+  * **`-i, --index-options JSON`**: JSON dictionary of extra indexes to calculate on the new objects.
+  * **`-m, --message TEXT`**: Optional commit message
+  * **`-o, --overwrite`**: Overwrite physical objects that already exist
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0002_tag.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0002_tag.mdx
new file mode 100644
index 00000000..89f01837
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0002_tag.mdx
@@ -0,0 +1,36 @@
+export const meta = {id: "tag", title: "sgr tag", sidebarTitle: "tag", description: "Manage tags on images."};
+
+```sgr tag [OPTIONS] IMAGE_SPEC [TAG]```
+
+Manage tags on images.
+
+Depending on the exact invocation, this command can tag a Splitgraph image,
+list all tags in a repository or delete a tag.
+
+### Examples
+
+``sgr tag noaa/climate``
+
+List all tagged images in the ``noaa/climate`` repository and their tags.
+
+``sgr tag noaa/climate:abcdef1234567890``
+
+List all tags assigned to the image ``noaa/climate:abcdef1234567890...``
+
+``sgr tag noaa/climate:abcdef1234567890 my_new_tag``
+
+Tag the image ``noaa/climate:abcdef1234567890...`` with ``my_new_tag``. If the tag already exists, this will
+overwrite the tag.
+
+``sgr tag noaa/climate my_new_tag``
+
+Tag the current ``HEAD`` of ``noaa/climate`` with ``my_new_tag``.
+
+``sgr tag --delete noaa/climate:my_new_tag``
+
+Delete the tag ``my_new_tag`` from ``noaa/climate``.
+
+### Options
+
+  * **`-d, --delete`**: Delete the tag instead.
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0003_import.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0003_import.mdx
new file mode 100644
index 00000000..b69bbfb4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0003_import.mdx
@@ -0,0 +1,32 @@
+export const meta = {id: "import", title: "sgr import", sidebarTitle: "import", description: "Import tables into a Splitgraph repository."};
+
+```sgr import [OPTIONS] IMAGE_SPEC TABLE_OR_QUERY TARGET_REPOSITORY [TARGET_TABLE]```
+
+Import tables into a Splitgraph repository.
+
+Imports a table or a result of a query from a local Splitgraph repository or a Postgres schema into another
+Splitgraph repository.
+
+### Examples
+
+``sgr import noaa/climate:my_tag climate_data my/repository``
+
+Create a new image in ``my/repository`` with the ``climate_data`` table included. This links the new image to
+the physical object, meaning that the history of the ``climate_data`` table is preserved.
+
+If no tag is specified, the 'latest' (not the HEAD image or current state of the checked out image)
+image is used.
+
+``sgr import noaa/climate:my_tag "SELECT * FROM climate_data" my/repository climate_data``
+
+Create a new image in ``my/repository`` with the result of the query stored in the ``climate_data`` table. This
+creates a new physical object without any linkage to the original data, so the history of the ``climate_data``
+table isn't preserved. The SQL query can interact with multiple tables in the source image.
+
+``sgr import other_schema other_table my/repository``
+
+Since other_schema isn't a Splitgraph repository, this will copy ``other_schema.other_table``
+into a new Splitgraph object and add the ``other_table`` table to a new image in ``my/repository``.
+
+Note that importing doesn't discard or commit pending changes in the target Splitgraph repository: a new image
+is created with the new table added, the new table is materialized in the repository and the HEAD pointer is moved.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0004_reindex.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0004_reindex.mdx
new file mode 100644
index 00000000..b640ffe3
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/0004_reindex.mdx
@@ -0,0 +1,19 @@
+export const meta = {id: "reindex", title: "sgr reindex", sidebarTitle: "reindex", description: "Run extra indexes on a table."};
+
+```sgr reindex [OPTIONS] IMAGE_SPEC TABLE_NAME```
+
+Run extra indexes on a table. This will merge the indexing results for all objects
+that a table is formed from with the current object indexes. For explanation of
+what indexes do, see the documentation for `sgr commit`.
+
+If the objects haven't been downloaded yet, this will download them.
+
+Currently reindexing objects that change other objects is unsupported and will raise
+an error. Pass `-o` to ignore these objects and only reindex supported objects.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-i, --index-options JSON`**: JSON dictionary of extra indexes to calculate, e.g. '{"bloom": {"column_1": {"probability": 0.01}}}'  [required]
+  * **`-o, --ignore-patch-objects`**: Ignore objects that change other objects' rows instead of raising an error
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/metadata.json
new file mode 100644
index 00000000..9ef75b16
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0000_image-management-creation/metadata.json
@@ -0,0 +1 @@
+{"title": "Image management/creation"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0000_log.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0000_log.mdx
new file mode 100644
index 00000000..db5078b4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0000_log.mdx
@@ -0,0 +1,18 @@
+export const meta = {id: "log", title: "sgr log", sidebarTitle: "log", description: "Show the history of a Splitgraph repository/image."};
+
+```sgr log [OPTIONS] IMAGE_SPEC```
+
+Show the history of a Splitgraph repository/image.
+
+By default, this shows the history of the current branch, starting from the HEAD pointer and following its
+parent chain.
+
+Alternatively, it can follow the parent chain of any other image.
+
+If ``-t`` or ``--tree`` is passed, this instead renders the full image tree. The repository doesn't need to have
+been checked out in this case.
+
+### Options
+
+  * **`-t, --tree`**: 
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0001_diff.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0001_diff.mdx
new file mode 100644
index 00000000..8ef569e8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0001_diff.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "diff", title: "sgr diff", sidebarTitle: "diff", description: "Show differences between two Splitgraph images."};
+
+```sgr diff [OPTIONS] REPOSITORY [TAG_OR_HASH_1] [TAG_OR_HASH_2]```
+
+Show differences between two Splitgraph images.
+
+The two images must be in the same repository. The actual targets of this command depend
+on the number of arguments passed:
+
+``sgr diff REPOSITORY``
+
+Return the differences between the current HEAD image and the checked out schema.
+
+``sgr diff REPOSITORY TAG_OR_HASH``
+
+Return the differences between the image and its parent.
+
+``sgr diff REPOSITORY TAG_OR_HASH_1 TAG_OR_HASH_2``
+
+Return the differences from the first (earlier) image to the second image.
+
+### Options
+
+  * **`-v, --verbose`**: Include the actual differences rather than just the total number of updated rows.
+  * **`-t, --table-name TEXT`**: Show the differences for a single table.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0002_object.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0002_object.mdx
new file mode 100644
index 00000000..ff8c38a9
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0002_object.mdx
@@ -0,0 +1,14 @@
+export const meta = {id: "object", title: "sgr object", sidebarTitle: "object", description: "Show information about a Splitgraph object."};
+
+```sgr object [OPTIONS] OBJECT_ID```
+
+Show information about a Splitgraph object.
+
+Objects, or fragments, are building blocks of Splitgraph tables: each table consists of multiple immutable fragments
+that can partially overwrite each other. Each fragment might have a parent that it depends on. In addition,
+the smallest and largest values for every column are stored in the fragment's metadata. This information is used
+to choose which objects to download in order to execute a query against a table.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0003_objects.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0003_objects.mdx
new file mode 100644
index 00000000..c56fa727
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0003_objects.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "objects", title: "sgr objects", sidebarTitle: "objects", description: "List objects known to this engine."};
+
+```sgr objects [OPTIONS] ```
+
+List objects known to this engine.
+
+### Options
+
+  * **`--local`**: Show only objects that are physically present on this engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0004_show.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0004_show.mdx
new file mode 100644
index 00000000..4ddcc55d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0004_show.mdx
@@ -0,0 +1,14 @@
+export const meta = {id: "show", title: "sgr show", sidebarTitle: "show", description: "Show information about a Splitgraph image."};
+
+```sgr show [OPTIONS] IMAGE_SPEC```
+
+Show information about a Splitgraph image. This includes its parent, comment, size and creation time.
+
+Note that the size isn't the on-disk footprint, as the image might share some objects with other images
+or if some of the image's objects have not been downloaded.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0005_table.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0005_table.mdx
new file mode 100644
index 00000000..cc681c85
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0005_table.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "table", title: "sgr table", sidebarTitle: "table", description: "Show information about a table in a Splitgraph image."};
+
+```sgr table [OPTIONS] IMAGE_SPEC TABLE_NAME```
+
+Show information about a table in a Splitgraph image.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-v, --verbose`**: Show all of table's objects.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0006_sql.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0006_sql.mdx
new file mode 100644
index 00000000..ea8a304b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0006_sql.mdx
@@ -0,0 +1,34 @@
+export const meta = {id: "sql", title: "sgr sql", sidebarTitle: "sql", description: "Run an SQL statement against the Splitgraph engine."};
+
+```sgr sql [OPTIONS] SQL```
+
+Run an SQL statement against the Splitgraph engine.
+
+There are no restrictions on the contents of the statement: this is the same as running it
+from any other PostgreSQL client.
+
+If ``--schema`` is specified, the statement is run with the ``search_path`` set to that schema. This means
+that these statements are equivalent:
+
+
+```
+sgr sql "SELECT * FROM "noaa/climate".table"
+sgr sql -s noaa/climate "SELECT * FROM table"
+```
+
+If `--image` is specified, this will run the statement against that image using layered querying.
+Only read-only statements are supported. For example:
+
+
+```
+sgr sql -i noaa/climate:latest "SELECT * FROM table"
+```
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-s, --schema TEXT`**: Run SQL against this schema.
+  * **`-i, --image IMAGE`**: Run SQL against this image.
+  * **`-a, --show-all`**: Return all results of the query.
+  * **`-j, --json`**: Return results as JSON
+  * **`-n, --no-transaction`**: Don't wrap the SQL in a transaction.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0007_status.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0007_status.mdx
new file mode 100644
index 00000000..5e312f11
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/0007_status.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "status", title: "sgr status", sidebarTitle: "status", description: "Show the status of the Splitgraph engine."};
+
+```sgr status [OPTIONS] [REPOSITORY]```
+
+Show the status of the Splitgraph engine.
+
+If a repository is passed, show in-depth information about a repository.
+
+If not, show information about all repositories local to the engine. This will show a list
+of all repositories, number of local images and tags, total repository size (theoretical
+maximum size and current on-disk footprint of cached objects) and the current checked
+out image (with LQ if the image is checked out using read-only layered querying).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/metadata.json
new file mode 100644
index 00000000..a2c3f0f8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0001_image-information/metadata.json
@@ -0,0 +1 @@
+{"title": "Image information"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0000_engine-add.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0000_engine-add.mdx
new file mode 100644
index 00000000..c0b69417
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0000_engine-add.mdx
@@ -0,0 +1,26 @@
+export const meta = {id: "engine-add", title: "sgr engine add", sidebarTitle: "engine add", description: "Create and start a Splitgraph engine."};
+
+```sgr engine add [OPTIONS] [NAME]```
+
+Create and start a Splitgraph engine.
+
+This will pull the Splitgraph engine image, start it, create a Postgres user and initialize
+the engine.
+
+This also creates Docker volumes required to persist data/metadata.
+
+The engine Docker container by default will be named `splitgraph_engine_default` and
+its data and metadata volumes will have names `splitgraph_engine_default_data` and
+`splitgraph_engine_default_metadata`.
+
+### Options
+
+  * **`-i, --image TEXT`**: Docker image with the Splitgraph engine
+  * **`-p, --port INTEGER`**: Port to start the engine on
+  * **`-u, --username TEXT`**: 
+  * **`--no-init`**: Don't run `sgr init` on the engine
+  * **`--no-sgconfig`**: Don't add the engine to .sgconfig
+  * **`--inject-source`**: Inject the current Splitgraph source code into the engine using Docker bind mounts
+  * **`--no-pull`**: Don't pull the Docker image
+  * **`--set-default`**: Set the engine as the default engine in the config regardless of its name
+  * **`--password TEXT`**: 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0001_engine-delete.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0001_engine-delete.mdx
new file mode 100644
index 00000000..6229e082
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0001_engine-delete.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "engine-delete", title: "sgr engine delete", sidebarTitle: "engine delete", description: "Delete the Splitgraph engine container."};
+
+```sgr engine delete [OPTIONS] [NAME]```
+
+Delete the Splitgraph engine container.
+
+### Options
+
+  * **`-y, --yes`**: Do not prompt for confirmation.
+  * **`-f, --force`**: Delete the engine anyway if it's running.
+  * **`-v, --with-volumes`**: Include the engine's volumes (if not specified, volumes will be reattached when an engine with the same name is created).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0002_engine-list.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0002_engine-list.mdx
new file mode 100644
index 00000000..a2530db2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0002_engine-list.mdx
@@ -0,0 +1,13 @@
+export const meta = {id: "engine-list", title: "sgr engine list", sidebarTitle: "engine list", description: "List Splitgraph engines."};
+
+```sgr engine list [OPTIONS] ```
+
+List Splitgraph engines.
+
+This only lists Docker containers that were created by sgr engine
+(whose names start with `splitgraph_engine_`. To manage other engines,
+use Docker CLI directly.
+
+### Options
+
+  * **`-a, --include-all`**: Include stopped engine containers.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0003_engine-start.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0003_engine-start.mdx
new file mode 100644
index 00000000..4c9cdf6c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0003_engine-start.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "engine-start", title: "sgr engine start", sidebarTitle: "engine start", description: "Start a Splitgraph engine."};
+
+```sgr engine start [OPTIONS] [NAME]```
+
+Start a Splitgraph engine.
+
+This is a wrapper around the corresponding Docker command.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0004_engine-stop.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0004_engine-stop.mdx
new file mode 100644
index 00000000..7ea64786
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0004_engine-stop.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "engine-stop", title: "sgr engine stop", sidebarTitle: "engine stop", description: "Stop a Splitgraph engine."};
+
+```sgr engine stop [OPTIONS] [NAME]```
+
+Stop a Splitgraph engine.
+
+This is a wrapper around the corresponding Docker command.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0005_engine-upgrade.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0005_engine-upgrade.mdx
new file mode 100644
index 00000000..751cd998
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0005_engine-upgrade.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "engine-upgrade", title: "sgr engine upgrade", sidebarTitle: "engine upgrade", description: "Upgrade a Splitgraph engine."};
+
+```sgr engine upgrade [OPTIONS] [NAME]```
+
+Upgrade a Splitgraph engine.
+
+This consists of shutting down the current Splitgraph engine,
+deleting its Docker container (keeping the actual data and
+metadata volumes intact), creating a container based on a newer
+image and finally reinitializing the engine to perform needed migrations.
+
+### Options
+
+  * **`-i, --image TEXT`**: Docker image with the Splitgraph engine
+  * **`--no-pull`**: Don't pull the new engine image
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0006_engine-log.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0006_engine-log.mdx
new file mode 100644
index 00000000..58859523
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0006_engine-log.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "engine-log", title: "sgr engine log", sidebarTitle: "engine log", description: "Get logs from a Splitgraph engine."};
+
+```sgr engine log [OPTIONS] [NAME]```
+
+Get logs from a Splitgraph engine.
+
+### Options
+
+  * **`-f, --follow`**: Stream logs
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0007_engine-configure.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0007_engine-configure.mdx
new file mode 100644
index 00000000..1be8adcd
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0007_engine-configure.mdx
@@ -0,0 +1,10 @@
+export const meta = {id: "engine-configure", title: "sgr engine configure", sidebarTitle: "engine configure", description: "Inject a configuration file into an engine."};
+
+```sgr engine configure [OPTIONS] [NAME]```
+
+Inject a configuration file into an engine.
+
+This copies the current .sgconfig file (pointed to by SG_CONFIG_FILE) into
+the engine container, making it use that configuration for
+when it's queried through an application other than the sgr client
+(layered querying).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0008_engine-version.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0008_engine-version.mdx
new file mode 100644
index 00000000..d47bfe05
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/0008_engine-version.mdx
@@ -0,0 +1,5 @@
+export const meta = {id: "engine-version", title: "sgr engine version", sidebarTitle: "engine version", description: "Get version of Splitgraph engine."};
+
+```sgr engine version [OPTIONS] [NAME]```
+
+Get version of Splitgraph engine.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/metadata.json
new file mode 100644
index 00000000..3f70a9d2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0002_engine-management/metadata.json
@@ -0,0 +1 @@
+{"title": "Engine management"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/0000_csv-export.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/0000_csv-export.mdx
new file mode 100644
index 00000000..8408f9f2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/0000_csv-export.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "csv-export", title: "sgr csv export", sidebarTitle: "csv export", description: "Export the result of a query as CSV."};
+
+```sgr csv export [OPTIONS] IMAGE_SPEC QUERY```
+
+Export the result of a query as CSV.
+
+### Examples
+
+`sgr csv export noaa/climate "SELECT * FROM rainfall"`
+
+Output everything in the currently checked-out `"rainfall"` table as CSV.
+
+`sgr csv export noaa/climate:dec_2018 "SELECT * FROM rainfall WHERE state = 'AZ' -f dec_2018_az.csv`
+
+Check out the `dec_2018` tag of `noaa/climate` and output values from `"rainfall"` for Arizona to `dec_2018_az.csv`
+
+`sgr csv export --layered noaa/climate:abcdef1234567890 "SELECT * FROM rainfall JOIN other_table ON..."`
+
+Uses layered querying instead to execute a join on tables in a certain image (satisfying the query without
+having to check the image out).
+
+### Options
+
+  * **`-f, --file FILENAME`**: File name to export to, default stdout.
+  * **`-l, --layered`**: Don't materialize the tables, use layered querying instead.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/0001_csv-import.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/0001_csv-import.mdx
new file mode 100644
index 00000000..5f3eb655
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/0001_csv-import.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "csv-import", title: "sgr csv import", sidebarTitle: "csv import", description: "Import a CSV file into a checked-out Splitgraph repository."};
+
+```sgr csv import [OPTIONS] REPOSITORY TABLE```
+
+Import a CSV file into a checked-out Splitgraph repository. This doesn't create a new image, use `sgr commit`
+after the import and any adjustments (e.g. adding primary keys or converting column types) to do so.
+
+If the target table doesn't exist, this will create a new table.
+
+If the target table does exist, this will try and patch the new values in by updating rows that exist in the
+current table (as per its primary key constraints) and inserting new ones. Rows existing in the current table
+but missing in the CSV won't be deleted.
+
+If `-r` is passed, the table will instead be deleted and recreated from the CSV file if it exists.
+
+### Options
+
+  * **`-f, --file FILENAME`**: File name to import data from, default stdin.
+  * **`-r, --replace`**: Replace the table if it already exists.
+  * **`-k, --primary-key TEXT`**: Use the specified column(s) as primary key(s)
+  * **`-t, --override-type <TEXT TEXT>...`**: Explicitly set types of these columns to PG types
+  * **`--encoding TEXT`**: Encoding to use for the CSV file
+  * **`--separator TEXT`**: CSV separator to use
+  * **`--no-header`**: Treats the first line of the CSV as data rather than a header.
+  * **`--skip-schema-check`**: Skips checking that the dataframe is compatible with the target schema.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/0002_mount.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/0002_mount.mdx
new file mode 100644
index 00000000..85bcb7f5
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/0002_mount.mdx
@@ -0,0 +1,10 @@
+export const meta = {id: "mount", title: "sgr mount", sidebarTitle: "mount", description: "Mount foreign databases as Postgres schemas."};
+
+```sgr mount [OPTIONS] ```
+
+Mount foreign databases as Postgres schemas.
+
+Uses the Postgres FDW interface to create a local Postgres schema with foreign tables that map
+to tables in other databases.
+
+See a given mount handler's documentation for handler-specific parameters.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/metadata.json
new file mode 100644
index 00000000..d82f5068
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0003_data-import-export/metadata.json
@@ -0,0 +1 @@
+{"title": "Data import/export"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0000_rm.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0000_rm.mdx
new file mode 100644
index 00000000..47baf9a3
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0000_rm.mdx
@@ -0,0 +1,40 @@
+export const meta = {id: "rm", title: "sgr rm", sidebarTitle: "rm", description: "Delete schemas, repositories or images."};
+
+```sgr rm [OPTIONS] IMAGE_SPEC```
+
+Delete schemas, repositories or images.
+
+If the target of this command is a Postgres schema, this performs DROP SCHEMA CASCADE.
+
+If the target of this command is a Splitgraph repository, this deletes the repository and all of its history.
+
+If the target of this command is an image, this deletes the image and all of its children.
+
+In any case, this command will ask for confirmation of the deletion, unless ``-y`` is passed. If ``-r``
+(``--remote``), is passed, this will perform deletion on a remote Splitgraph engine (registered in the config)
+instead, assuming the user has write access to the remote repository.
+
+This does not delete any physical objects that the deleted repository/images depend on:
+use ``sgr cleanup`` to do that.
+
+### Examples
+
+``sgr rm temporary_schema``
+
+Deletes ``temporary_schema`` from the local engine.
+
+``sgr rm --remote data.splitgraph.com username/repo``
+
+Deletes ``username/repo`` from the Splitgraph registry.
+
+``sgr rm -y username/repo:old_branch``
+
+Deletes the image pointed to by ``old_branch`` as well as all of its children (images created by a commit based
+on this image), as well as all of the tags that point to now deleted images, without asking for confirmation.
+Note this will not delete images that import tables from the deleted images via Splitfiles or indeed the
+physical objects containing the actual tables.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-y, --yes`**: Agree to deletion without confirmation
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0001_init.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0001_init.mdx
new file mode 100644
index 00000000..e4ab8d4d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0001_init.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "init", title: "sgr init", sidebarTitle: "init", description: "Initialize a new repository/engine."};
+
+```sgr init [OPTIONS] [REPOSITORY]```
+
+Initialize a new repository/engine.
+
+### Examples
+
+`sgr init`
+
+Initializes the current local Splitgraph engine by writing some bookkeeping information.
+This is required for the rest of sgr to work.
+
+`sgr init --skip-object-handling`
+
+Initializes a Splitgraph engine without installing audit triggers or object management routines:
+this is useful for engines that aren't intended to be used for image checkouts.
+
+``sgr init new/repo``
+
+Creates a single image with the hash ``00000...`` in ``new/repo``
+
+### Options
+
+  * **`--skip-object-handling`**: 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0002_cleanup.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0002_cleanup.mdx
new file mode 100644
index 00000000..c23688a4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0002_cleanup.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "cleanup", title: "sgr cleanup", sidebarTitle: "cleanup", description: "Prune unneeded objects from the engine."};
+
+```sgr cleanup [OPTIONS] ```
+
+Prune unneeded objects from the engine.
+
+This deletes all objects from the cache that aren't required by any local repository.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0003_prune.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0003_prune.mdx
new file mode 100644
index 00000000..64c2d49b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0003_prune.mdx
@@ -0,0 +1,20 @@
+export const meta = {id: "prune", title: "sgr prune", sidebarTitle: "prune", description: "Cleanup dangling images from a repository."};
+
+```sgr prune [OPTIONS] REPOSITORY```
+
+Cleanup dangling images from a repository.
+
+This includes images not pointed to by any tags (or checked out) and those that aren't required by any of
+such images.
+
+Will ask for confirmation of the deletion, unless ``-y ``is passed. If ``-r`` (``--remote``) is
+passed, this will perform deletion on a remote Splitgraph engine (registered in the config) instead, assuming
+the user has write access to the remote repository.
+
+This does not delete any physical objects that the deleted repository/images depend on:
+use ``sgr cleanup`` to do that.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-y, --yes`**: Agree to deletion without confirmation
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0004_config.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0004_config.mdx
new file mode 100644
index 00000000..7fcaa53c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0004_config.mdx
@@ -0,0 +1,33 @@
+export const meta = {id: "config", title: "sgr config", sidebarTitle: "config", description: "Print the current Splitgraph configuration."};
+
+```sgr config [OPTIONS] ```
+
+Print the current Splitgraph configuration.
+
+This takes into account the local config file, the default values
+and all overrides specified via environment variables.
+
+This command can be used to dump the current Splitgraph configuration into a file:
+
+```
+sgr config --no-shielding --config-format > .sgconfig
+```
+
+...or save a config file overriding an entry:
+
+```
+SG_REPO_LOOKUP=engine1,engine2 sgr config -sc > .sgconfig
+```
+
+If `--conn-string` is passed, this prints out a libpq connection string
+that can be used to connect to the default Splitgraph engine with other tools:
+
+```
+pgcli $(sgr config -n)
+```
+
+### Options
+
+  * **`-s, --no-shielding`**: If set, doesn't replace sensitive values (like passwords) with asterisks
+  * **`-c, --config-format`**: Output configuration in the Splitgraph config file format
+  * **`-n, --conn-string`**: Print a libpq connection string to the engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0005_dump.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0005_dump.mdx
new file mode 100644
index 00000000..111baceb
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0005_dump.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "dump", title: "sgr dump", sidebarTitle: "dump", description: "Dump a repository to SQL."};
+
+```sgr dump [OPTIONS] REPOSITORY```
+
+Dump a repository to SQL.
+
+### Options
+
+  * **`--exclude-object-contents`**: Don't dump the commands needed to recreate objects required by the repository.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0006_eval.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0006_eval.mdx
new file mode 100644
index 00000000..5b4b7f0a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0006_eval.mdx
@@ -0,0 +1,39 @@
+export const meta = {id: "eval", title: "sgr eval", sidebarTitle: "eval", description: "Evaluate a Python snippet using the Splitgraph API."};
+
+```sgr eval [OPTIONS] COMMAND```
+
+Evaluate a Python snippet using the Splitgraph API.
+
+This is for advanced users only and should be only used
+if you know what you are doing.
+
+Normal Python statements are supported and the command is evaluated
+in a namespace where the following is already imported and available:
+
+  * Repository: class that instantiates a Splitgraph repository and makes
+    API functions like .commit(), .checkout() etc available.
+
+  * engine: Current local engine
+
+  * object_manager: an instance of ObjectManager that allows
+    to get information about objects and manage the object cache.
+
+
+Example:
+```
+sgr eval 'import json; print(json.dumps(Repository\
+    .from_schema(repo_name)\
+    .images["latest"]\
+    .get_table(table_name)\
+    .table_schema))' \
+-a repo_name my_repo -a table_name my_table
+```
+
+Will dump the schema of table my_table in the most recent image in my_repo in JSON format.
+
+For more information, see the Splitgraph API reference.
+
+### Options
+
+  * **`--i-know-what-im-doing`**: Pass this if you're sure that the code you're running is safe and don't want to be prompted.
+  * **`-a, --arg <TEXT TEXT>...`**: Make extra variables available in the command's namespace
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0007_upgrade.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0007_upgrade.mdx
new file mode 100644
index 00000000..188e798b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/0007_upgrade.mdx
@@ -0,0 +1,17 @@
+export const meta = {id: "upgrade", title: "sgr upgrade", sidebarTitle: "upgrade", description: "Upgrade sgr client and engine."};
+
+```sgr upgrade [OPTIONS] [VERSION]```
+
+Upgrade sgr client and engine.
+
+This will try to download the most recent stable binary for the current platform
+into the location this binary is running from and then upgrade the default engine.
+
+This method is only supported for single-binary installs and engines managed
+by `sgr engine`.
+
+### Options
+
+  * **`--skip-engine-upgrade`**: Only upgrade the client
+  * **`--path TEXT`**: Override the path to download the new binary to.
+  * **`--force`**: Reinstall older/same versions.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/metadata.json
new file mode 100644
index 00000000..26f7a103
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0004_miscellaneous/metadata.json
@@ -0,0 +1 @@
+{"title": "Miscellaneous"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0000_clone.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0000_clone.mdx
new file mode 100644
index 00000000..7c2929bd
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0000_clone.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "clone", title: "sgr clone", sidebarTitle: "clone", description: "Clone a remote Splitgraph repository/image into a local one."};
+
+```sgr clone [OPTIONS] REMOTE_REPOSITORY_OR_IMAGE [LOCAL_REPOSITORY]```
+
+Clone a remote Splitgraph repository/image into a local one.
+
+The lookup path for the repository is governed by the ``SG_REPO_LOOKUP`` and ``SG_REPO_LOOKUP_OVERRIDE``
+config parameters and can be overridden by the command line ``--remote`` option.
+
+### Options
+
+  * **`-r, --remote TEXT`**: Name of the remote engine
+  * **`-d, --download-all`**: Download all objects immediately instead of on checkout.
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing objects
+  * **`-t, --tags`**: Overwrite tags for pulled image/repo
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0001_push.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0001_push.mdx
new file mode 100644
index 00000000..60ba1e17
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0001_push.mdx
@@ -0,0 +1,30 @@
+export const meta = {id: "push", title: "sgr push", sidebarTitle: "push", description: "Push images the Splitgraph registry or another engine."};
+
+```sgr push [OPTIONS] REPOSITORY_OR_IMAGE [REMOTE_REPOSITORY]```
+
+Push images the Splitgraph registry or another engine.
+
+If an image is not specified (e.g. `sgr push noaa/climate`, this will push all new images.
+
+By default, the repository will be pushed to a repository with the same name in the user's namespace
+(SG_NAMESPACE configuration value which defaults to the username).
+
+If there's a single engine registered in the config (e.g. data.splitgraph.com), it shall be the default
+destination.
+
+If an upstream repository/engine has been configured for this engine with `sgr upstream`,
+it will be used instead.
+
+Finally, if `remote_repository` or `--remote` are passed, they will take precedence.
+
+The actual objects will be uploaded to S3 using Minio. When pushing to another engine,
+you can choose to upload them directly by passing `--handler DB`.
+
+### Options
+
+  * **`-r, --remote []`**: Name of the remote engine
+  * **`-h, --upload-handler TEXT`**: Upload handler
+  * **`-o, --upload-handler-options JSON`**: Upload handler parameters
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing remote objects
+  * **`-t, --tags`**: Overwrite tags for pushed image/repo
+  * **`-u, --reupload-objects`**: Reupload objects that metadata is pushed out for
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0002_pull.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0002_pull.mdx
new file mode 100644
index 00000000..d1b631d1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0002_pull.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "pull", title: "sgr pull", sidebarTitle: "pull", description: "Pull changes / download a single image."};
+
+```sgr pull [OPTIONS] REPOSITORY_OR_IMAGE```
+
+Pull changes / download a single image.
+
+### Options
+
+  * **`-d, --download-all`**: Download all objects immediately instead of on checkout.
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing objects
+  * **`-t, --tags`**: Overwrite tags for pulled image/repo
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0003_upstream.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0003_upstream.mdx
new file mode 100644
index 00000000..32f1d6ec
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/0003_upstream.mdx
@@ -0,0 +1,29 @@
+export const meta = {id: "upstream", title: "sgr upstream", sidebarTitle: "upstream", description: "Get or set the upstream for a repository."};
+
+```sgr upstream [OPTIONS] REPOSITORY```
+
+Get or set the upstream for a repository.
+
+This shows the default repository used for pushes and pulls as well as allows to change it to a different
+remote engine and repository.
+
+The remote engine alias must exist in the config file.
+
+### Examples
+
+``sgr upstream my/repo --set splitgraph.com username/repo``
+
+Sets the upstream for ``my/repo`` to ``username/repo`` existing on the ``splitgraph.com`` engine
+
+``sgr upstream my/repo --reset``
+
+Removes the upstream for ``my/repo``.
+
+``sgr upstream my/repo``
+
+Shows the current upstream for ``my/repo``.
+
+### Options
+
+  * **`-s, --set <TEXT REPOSITORY>...`**: Set the upstream to a engine alias + repository
+  * **`-r, --reset`**: Delete the upstream
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/metadata.json
new file mode 100644
index 00000000..b2c1ab8d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0005_sharing-images/metadata.json
@@ -0,0 +1 @@
+{"title": "Sharing images"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0000_build.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0000_build.mdx
new file mode 100644
index 00000000..2204aae2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0000_build.mdx
@@ -0,0 +1,29 @@
+export const meta = {id: "build", title: "sgr build", sidebarTitle: "build", description: "Build Splitgraph images."};
+
+```sgr build [OPTIONS] SPLITFILE```
+
+Build Splitgraph images.
+
+This executes a Splitfile, building a new image or checking it out from cache if the same
+image had already been built.
+
+### Examples
+
+``sgr build my.splitfile``
+
+Executes ``my.splitfile`` and writes its output into a new repository with the same name
+as the Splitfile (my) unless the name is specified in the Splitfile.
+
+``sgr build my.splitfile -o mynew/repo``
+
+Executes ``my.splitfile`` and writes its output into ``mynew/repo``.
+
+``sgr build my_other.splitfile -o mynew/otherrepo --args PARAM1 VAL1 --args PARAM2 VAL2``
+
+Executes ``my_other.splitfile`` with parameters ``PARAM1`` and ``PARAM2`` set to
+``VAL1`` and  ``VAL2``, respectively.
+
+### Options
+
+  * **`-a, --args <TEXT TEXT>...`**: Parameters to be substituted into the Splitfile. All parameters mentioned in the file must be specified in order for the Splitfile to be executed.
+  * **`-o, --output-repository REPOSITORY`**: Repository to store the result in.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0001_rebuild.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0001_rebuild.mdx
new file mode 100644
index 00000000..8194b0f1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0001_rebuild.mdx
@@ -0,0 +1,27 @@
+export const meta = {id: "rebuild", title: "sgr rebuild", sidebarTitle: "rebuild", description: "Rebuild images against different dependencies."};
+
+```sgr rebuild [OPTIONS] IMAGE_SPEC```
+
+Rebuild images against different dependencies.
+
+Examines the provenance of a Splitgraph image created by a Splitfile and reruns it against different images than
+the ones that were imported by the original run.
+
+### Examples
+
+``sgr rebuild my/repo --against noaa/climate:old_data``
+
+Reconstructs the Splitfile used to create ``my/repo:latest``, replaces all imports from ``noaa/climate`` with
+imports from ``noaa/climate:old_data`` and reruns the Splitfile.
+
+``sgr rebuild my/repo:other_tag -u``
+
+Rebuilds ``my_repo:other_tag`` against the latest versions of all of its dependencies.
+
+Image caching still works in this case: if the result of the rebuild already exists, the image will be checked
+out.
+
+### Options
+
+  * **`-u, --update`**: Rederive the image against the latest version of all dependencies.
+  * **`-a, --against IMAGE`**: Images to substitute into the reconstructed Splitfile, of the form [NAMESPACE/]REPOSITORY[:HASH_OR_TAG]. Default tag is 'latest'.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0002_provenance.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0002_provenance.mdx
new file mode 100644
index 00000000..45d3a5a8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0002_provenance.mdx
@@ -0,0 +1,62 @@
+export const meta = {id: "provenance", title: "sgr provenance", sidebarTitle: "provenance", description: "Reconstruct the provenance of an image."};
+
+```sgr provenance [OPTIONS] IMAGE_SPEC```
+
+Reconstruct the provenance of an image.
+
+This inspects the image to produce a list of images that were used by the Splitfile
+that created it, or a Splitfile with the same effect.
+
+`IMAGE_SPEC` must be of the form `[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]`.
+If no tag is specified, `latest` is used.
+
+### Examples
+
+Assume `my/repo` is produced by the following Splitfile:
+
+```
+FROM MOUNT [...] IMPORT external_table
+FROM noaa/climate IMPORT {SELECT * FROM rainfall_data WHERE state = 'AZ'} AS rainfall_data
+```
+
+`my/repo` will have 2 images: one having `hash_1` (with the `external_table` imported from a mounted database)
+and one having `hash_2` (with both `external_table` and the `rainfall_data` containing the result
+of the query run against the then-latest image in the `noaa/climate` repository).
+
+In this case:
+
+```
+sgr provenance my/repo
+```
+
+Returns a list of repositories and images that were imported by the Splitfile that constructed this image::
+
+```
+my/repo:[hash_2] depends on:
+noaa/climate:[hash_3]
+```
+
+Where `hash_3` is the hash of the latest image in the `noaa/climate` repository at the time the original
+Splitfile was run. However:
+
+```
+sgr provenance -f my/repo
+```
+
+Will try to reconstruct the Splitfile that can be used to build this image. Since the FROM MOUNT command isn't
+reproducible (requires access to the original external database, which is a moving target), this will fail.
+
+If `-e` is passed, this will emit information about irreproducible commands instead of failing.
+
+```
+sgr provenance -ef my/repo
+
+# Splitfile commands used to reconstruct my/repo:[image_hash]
+# Irreproducible Splitfile command of type MOUNT
+FROM noaa/climate:[hash_3] IMPORT {SELECT * FROM rainfall_data WHERE state = 'AZ'}
+```
+
+### Options
+
+  * **`-f, --full`**: Recreate the Splitfile used to create this image
+  * **`-e, --ignore-errors`**: If set, ignore commands that aren't reproducible (like MOUNT or custom commands)
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0003_dependents.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0003_dependents.mdx
new file mode 100644
index 00000000..fc8bc234
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/0003_dependents.mdx
@@ -0,0 +1,21 @@
+export const meta = {id: "dependents", title: "sgr dependents", sidebarTitle: "dependents", description: "List images that were created from an image."};
+
+```sgr dependents [OPTIONS] IMAGE_SPEC```
+
+List images that were created from an image.
+
+This is the inverse of the sgr provenance command. It will list all images that were
+created using a Splitfile that imported data from this image.
+
+By default, this will look at images on the local engine. The engine can be overridden
+with --source-on and --dependents-on. For example:
+
+    sgr dependents --source-on data.splitgraph.com --dependents-on LOCAL noaa/climate:latest
+
+will show all images on the local engine that derived data from `noaa/climate:latest`
+on the Splitgraph registry.
+
+### Options
+
+  * **`-O, --source-on TEXT`**: Override the engine to look the source up on
+  * **`-o, --dependents-on TEXT`**: Override the engine to list dependents from
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/metadata.json
new file mode 100644
index 00000000..50afd08a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0006_splitfile-execution/metadata.json
@@ -0,0 +1 @@
+{"title": "Splitfile execution"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0000_cloud-register.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0000_cloud-register.mdx
new file mode 100644
index 00000000..089ce0c6
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0000_cloud-register.mdx
@@ -0,0 +1,18 @@
+export const meta = {id: "cloud-register", title: "sgr cloud register", sidebarTitle: "cloud register", description: "Register the user on a Splitgraph registry."};
+
+```sgr cloud register [OPTIONS] ```
+
+Register the user on a Splitgraph registry.
+
+By default, this registers the user on data.splitgraph.com,
+obtains a set of machine (API) credentials for the client to communicate
+with the registry and configures the data.splitgraph.com engine.
+
+### Options
+
+  * **`--username TEXT`**: 
+  * **`--password TEXT`**: 
+  * **`--email TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to register on.
+  * **`--accept-tos`**: Accept the registry's Terms of Service
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0001_cloud-login.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0001_cloud-login.mdx
new file mode 100644
index 00000000..cb99d6c1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0001_cloud-login.mdx
@@ -0,0 +1,23 @@
+export const meta = {id: "cloud-login", title: "sgr cloud login", sidebarTitle: "cloud login", description: "Log into a Splitgraph registry with username/password."};
+
+```sgr cloud login [OPTIONS] ```
+
+Log into a Splitgraph registry with username/password.
+
+This will generate a new refresh token (to use the Splitgraph query API)
+and API keys to let sgr access the registry (if they don't already exist
+in the configuration file or if the actual username has changed).
+
+Note that if you already have generated an API key pair but it's not
+in the configuration file, this will generate a new pair instead of
+restoring the existing one, as the API secret is only stored in the configuration file.
+
+If you want to log in using an existing API key pair, use `sgr cloud login-api` instead.
+
+### Options
+
+  * **`--username TEXT`**: 
+  * **`--password TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`--overwrite`**: Overwrite old API keys in the config if they exist
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0002_cloud-login-api.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0002_cloud-login-api.mdx
new file mode 100644
index 00000000..4007fe22
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0002_cloud-login-api.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "cloud-login-api", title: "sgr cloud login-api", sidebarTitle: "cloud login-api", description: "Log into a Splitgraph registry using existing API keys."};
+
+```sgr cloud login-api [OPTIONS] ```
+
+Log into a Splitgraph registry using existing API keys.
+
+This will inject the API keys for the registry into the configuration file
+and generate a new access token.
+
+### Options
+
+  * **`--api-key TEXT`**: 
+  * **`--api-secret TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0003_cloud-sql.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0003_cloud-sql.mdx
new file mode 100644
index 00000000..56c4be0a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0003_cloud-sql.mdx
@@ -0,0 +1,20 @@
+export const meta = {id: "cloud-sql", title: "sgr cloud sql", sidebarTitle: "cloud sql", description: "Run SQL on or connect to the Splitgraph Data Delivery Network."};
+
+```sgr cloud sql [OPTIONS] [QUERY]```
+
+Run SQL on or connect to the Splitgraph Data Delivery Network.
+
+If a query isn't passed, this will return a libpq-compatible connection string to
+the registry's SQL endpoint. It can be used to connect to the endpoint with other SQL clients:
+
+```
+pgcli $(sgr cloud sql)
+```
+
+If a query is passed, this will run an SQL query against the SQL endpoint.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`-a, --show-all`**: Return all results of the query.
+  * **`-j, --json`**: Return results as JSON
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0004_cloud-curl.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0004_cloud-curl.mdx
new file mode 100644
index 00000000..e902965b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0004_cloud-curl.mdx
@@ -0,0 +1,32 @@
+export const meta = {id: "cloud-curl", title: "sgr cloud curl", sidebarTitle: "cloud curl", description: "Query a Splitgraph REST API."};
+
+```sgr cloud curl [OPTIONS] IMAGE [REQUEST_PARAMS]```
+
+Query a Splitgraph REST API.
+
+This is a thin wrapper around curl that performs an HTTP request to Splitgraph Cloud to
+interact with a dataset using PostgREST (http://postgrest.org) or the Splitfile execution service.
+
+The actual invocation is:
+
+```
+curl [API endpoint][request] -H [access_token] [extra curl args].
+```
+
+The image must be of the form `namespace/repository:[hash_or_tag (default latest)]`.
+
+The actual request parameters depend on the request type:
+
+  * For PostgREST: `/table?[postgrest request]` or empty to get the OpenAPI spec for this image.
+    For a reference on how to perform Postgrest requests, see http://postgrest.org/en/latest/api.html.
+  * For the Splitfile executor: a JSON array to be POSTed to the executor, e.g.
+    `'{"command": "FROM some/repo IMPORT some_table AS alias", "tag": "new_tag"}'`.
+
+`--curl-args` allows to pass extra arguments to curl. Note that every argument must be prefixed
+with `--curl-args`, e.g. `--curl-args --cacert --curl-args /path/to/ca.pem`.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`-t, --request-type [postgrest|splitfile]`**: 
+  * **`-c, --curl-args TEXT`**: Extra arguments to be passed to curl
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0005_cloud-readme.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0005_cloud-readme.mdx
new file mode 100644
index 00000000..4d800dc6
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0005_cloud-readme.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "cloud-readme", title: "sgr cloud readme", sidebarTitle: "cloud readme", description: "Upload or a README to a Splitgraph repository."};
+
+```sgr cloud readme [OPTIONS] REPOSITORY README```
+
+Upload or a README to a Splitgraph repository.
+
+The repository must have already been pushed. The README must be a file in Markdown format.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0006_cloud-description.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0006_cloud-description.mdx
new file mode 100644
index 00000000..003c953f
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0006_cloud-description.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "cloud-description", title: "sgr cloud description", sidebarTitle: "cloud description", description: "Upload a description to a Splitgraph repository."};
+
+```sgr cloud description [OPTIONS] REPOSITORY DESCRIPTION```
+
+Upload a description to a Splitgraph repository.
+
+The repository must have already been pushed. The description should be plain text, 160 characters or shorter.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0007_cloud-metadata.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0007_cloud-metadata.mdx
new file mode 100644
index 00000000..c9691e3b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0007_cloud-metadata.mdx
@@ -0,0 +1,19 @@
+export const meta = {id: "cloud-metadata", title: "sgr cloud metadata", sidebarTitle: "cloud metadata", description: "Upload a metadata file to a Splitgraph repository."};
+
+```sgr cloud metadata [OPTIONS] REPOSITORY [METADATA_FILE]```
+
+Upload a metadata file to a Splitgraph repository.
+
+    The metadata file should be in YAML format and have two keys: `readme` and `description`.
+
+    For example:
+
+```
+readme: dataset-readme.md
+description: Dataset description (160 characters max).
+```
+    
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0008_cloud-search.mdx b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0008_cloud-search.mdx
new file mode 100644
index 00000000..c23c31f4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/0008_cloud-search.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "cloud-search", title: "sgr cloud search", sidebarTitle: "cloud search", description: "Search for a repository on the Splitgraph registry."};
+
+```sgr cloud search [OPTIONS] QUERY```
+
+Search for a repository on the Splitgraph registry.
+
+For more advanced search, including filtering by topics, go to the registry's website itself.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`--limit INTEGER RANGE`**: Number of results to return
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/metadata.json
new file mode 100644
index 00000000..25ba655e
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/0007_splitgraph-cloud/metadata.json
@@ -0,0 +1 @@
+{"title": "Splitgraph Cloud"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.3/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.3/metadata.json
new file mode 100644
index 00000000..5d3495dc
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.3/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.3",
+  "updated_at": "2021-01-26T14:47:55.101Z",
+  "release": {
+    "id": 31397249,
+    "tag_name": "v0.2.3",
+    "target_commitish": "62311d4a66e546182ea988bc0b7a7fcf19e77a56",
+    "created_at": "2020-09-16T12:06:56Z",
+    "published_at": "2020-12-08T10:48:44Z",
+    "assets": [
+      {
+        "id": 25757519,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/25757519",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-09-16T12:29:49Z",
+        "updated_at": "2020-09-16T12:29:50Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.3/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0000_checkout.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0000_checkout.mdx
new file mode 100644
index 00000000..cc805a26
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0000_checkout.mdx
@@ -0,0 +1,30 @@
+export const meta = {id: "checkout", title: "sgr checkout", sidebarTitle: "checkout", description: "Check out a Splitgraph image into a Postgres schema."};
+
+```sgr checkout [OPTIONS] IMAGE_SPEC```
+
+Check out a Splitgraph image into a Postgres schema.
+
+This downloads the required physical objects and materializes all tables, unless ``-l`` or ``--layered`` is passed,
+in which case the objects are downloaded and a foreign data wrapper is set up on the engine to satisfy read-only
+queries by combining results from each table's fragments.
+
+Tables checked out in this way are still presented as normal Postgres tables and can queried in the same way.
+Since the tables aren't materialized, layered querying is faster to set up, but since each query now results in a
+subquery to each object comprising the table, actual query execution is slower than to materialized Postgres tables.
+
+Layered querying is only supported for read-only queries.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. Note that currently, the schema that the
+image is checked out into has to have the same name as the repository. If no image hash or tag is passed,
+"HEAD" is assumed.
+
+If ``-u`` or ``--uncheckout`` is passed, this instead deletes the checked out schema (assuming there are no pending
+changes) and removes the HEAD pointer.
+
+If ``--force`` isn't passed and the schema has pending changes, this will fail.
+
+### Options
+
+  * **`-f, --force`**: Discard all pending changes to the schema
+  * **`-u, --uncheckout`**: Delete the checked out copy instead
+  * **`-l, --layered`**: Don't materialize the tables, use layered querying instead.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0001_commit.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0001_commit.mdx
new file mode 100644
index 00000000..9a2ec1f1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0001_commit.mdx
@@ -0,0 +1,59 @@
+export const meta = {id: "commit", title: "sgr commit", sidebarTitle: "commit", description: "Commit changes to a checked-out Splitgraph repository."};
+
+```sgr commit [OPTIONS] REPOSITORY```
+
+Commit changes to a checked-out Splitgraph repository.
+
+This packages up all changes into a new image. Where a table hasn't been created or had its schema changed,
+this will delta compress the changes. For all other tables (or if ``-s`` has been passed), this will
+store them as full table snapshots.
+
+When a table is stored as a full snapshot, `--chunk-size` sets the maximum size, in rows, of the fragments
+that the table will be split into (default is no splitting). The splitting is done by the
+table's primary key.
+
+If `--split-changesets` is passed, delta-compressed changes will also be split up according to the original
+table chunk boundaries. For example, if there's a change to the first and the 20000th row of a table that was
+originally committed with `--chunk-size=10000`, this will create 2 fragments: one based on the first chunk
+and one on the second chunk of the table.
+
+If `--chunk-sort-keys` is passed, data inside the chunk is sorted by this key (or multiple keys).
+This helps speed up queries on those keys for storage layers than can leverage that (e.g. CStore). The expected format is JSON, e.g. `{table_1: [col_1, col_2]}`
+
+`--index-options` expects a JSON-serialized dictionary of `{table: index_type: column: index_specific_kwargs}`.
+Indexes are used to narrow down the amount of chunks to scan through when running a query. By default, each column
+has a range index (minimum and maximum values) and it's possible to add bloom filtering to speed up queries that
+involve equalities.
+
+Bloom filtering allows to trade off between the space overhead of the index and the probability of a false
+positive (claiming that an object contains a record when it actually doesn't, leading to extra scans).
+
+An example `index-options` dictionary:
+
+
+```
+{
+    "table": {
+        "bloom": {
+            "column_1": {
+                "probability": 0.01,   # Only one of probability
+                "size": 10000          # or size can be specified.
+            }
+        },
+        # Only compute the range index on these columns. By default,
+        # it's computed on all columns and is always computed on the
+        # primary key no matter what.
+        "range": ["column_2", "column_3"]
+    }
+}
+```
+
+### Options
+
+  * **`-s, --snap`**: Do not delta compress the changes and instead store the whole table again. This consumes more space, but makes checkouts faster.
+  * **`-c, --chunk-size INTEGER`**: Split new tables into chunks of this many rows (by primary key). The default value is governed by the SG_COMMIT_CHUNK_SIZE configuration parameter.
+  * **`-k, --chunk-sort-keys JSON`**: Sort the data inside each chunk by this/these key(s)
+  * **`-t, --split-changesets`**: Split changesets for existing tables across original chunk boundaries.
+  * **`-i, --index-options JSON`**: JSON dictionary of extra indexes to calculate on the new objects.
+  * **`-m, --message TEXT`**: Optional commit message
+  * **`-o, --overwrite`**: Overwrite physical objects that already exist
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0002_tag.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0002_tag.mdx
new file mode 100644
index 00000000..89f01837
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0002_tag.mdx
@@ -0,0 +1,36 @@
+export const meta = {id: "tag", title: "sgr tag", sidebarTitle: "tag", description: "Manage tags on images."};
+
+```sgr tag [OPTIONS] IMAGE_SPEC [TAG]```
+
+Manage tags on images.
+
+Depending on the exact invocation, this command can tag a Splitgraph image,
+list all tags in a repository or delete a tag.
+
+### Examples
+
+``sgr tag noaa/climate``
+
+List all tagged images in the ``noaa/climate`` repository and their tags.
+
+``sgr tag noaa/climate:abcdef1234567890``
+
+List all tags assigned to the image ``noaa/climate:abcdef1234567890...``
+
+``sgr tag noaa/climate:abcdef1234567890 my_new_tag``
+
+Tag the image ``noaa/climate:abcdef1234567890...`` with ``my_new_tag``. If the tag already exists, this will
+overwrite the tag.
+
+``sgr tag noaa/climate my_new_tag``
+
+Tag the current ``HEAD`` of ``noaa/climate`` with ``my_new_tag``.
+
+``sgr tag --delete noaa/climate:my_new_tag``
+
+Delete the tag ``my_new_tag`` from ``noaa/climate``.
+
+### Options
+
+  * **`-d, --delete`**: Delete the tag instead.
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0003_import.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0003_import.mdx
new file mode 100644
index 00000000..b69bbfb4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0003_import.mdx
@@ -0,0 +1,32 @@
+export const meta = {id: "import", title: "sgr import", sidebarTitle: "import", description: "Import tables into a Splitgraph repository."};
+
+```sgr import [OPTIONS] IMAGE_SPEC TABLE_OR_QUERY TARGET_REPOSITORY [TARGET_TABLE]```
+
+Import tables into a Splitgraph repository.
+
+Imports a table or a result of a query from a local Splitgraph repository or a Postgres schema into another
+Splitgraph repository.
+
+### Examples
+
+``sgr import noaa/climate:my_tag climate_data my/repository``
+
+Create a new image in ``my/repository`` with the ``climate_data`` table included. This links the new image to
+the physical object, meaning that the history of the ``climate_data`` table is preserved.
+
+If no tag is specified, the 'latest' (not the HEAD image or current state of the checked out image)
+image is used.
+
+``sgr import noaa/climate:my_tag "SELECT * FROM climate_data" my/repository climate_data``
+
+Create a new image in ``my/repository`` with the result of the query stored in the ``climate_data`` table. This
+creates a new physical object without any linkage to the original data, so the history of the ``climate_data``
+table isn't preserved. The SQL query can interact with multiple tables in the source image.
+
+``sgr import other_schema other_table my/repository``
+
+Since other_schema isn't a Splitgraph repository, this will copy ``other_schema.other_table``
+into a new Splitgraph object and add the ``other_table`` table to a new image in ``my/repository``.
+
+Note that importing doesn't discard or commit pending changes in the target Splitgraph repository: a new image
+is created with the new table added, the new table is materialized in the repository and the HEAD pointer is moved.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0004_reindex.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0004_reindex.mdx
new file mode 100644
index 00000000..b640ffe3
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/0004_reindex.mdx
@@ -0,0 +1,19 @@
+export const meta = {id: "reindex", title: "sgr reindex", sidebarTitle: "reindex", description: "Run extra indexes on a table."};
+
+```sgr reindex [OPTIONS] IMAGE_SPEC TABLE_NAME```
+
+Run extra indexes on a table. This will merge the indexing results for all objects
+that a table is formed from with the current object indexes. For explanation of
+what indexes do, see the documentation for `sgr commit`.
+
+If the objects haven't been downloaded yet, this will download them.
+
+Currently reindexing objects that change other objects is unsupported and will raise
+an error. Pass `-o` to ignore these objects and only reindex supported objects.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-i, --index-options JSON`**: JSON dictionary of extra indexes to calculate, e.g. '{"bloom": {"column_1": {"probability": 0.01}}}'  [required]
+  * **`-o, --ignore-patch-objects`**: Ignore objects that change other objects' rows instead of raising an error
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/metadata.json
new file mode 100644
index 00000000..9ef75b16
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0000_image-management-creation/metadata.json
@@ -0,0 +1 @@
+{"title": "Image management/creation"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0000_log.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0000_log.mdx
new file mode 100644
index 00000000..db5078b4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0000_log.mdx
@@ -0,0 +1,18 @@
+export const meta = {id: "log", title: "sgr log", sidebarTitle: "log", description: "Show the history of a Splitgraph repository/image."};
+
+```sgr log [OPTIONS] IMAGE_SPEC```
+
+Show the history of a Splitgraph repository/image.
+
+By default, this shows the history of the current branch, starting from the HEAD pointer and following its
+parent chain.
+
+Alternatively, it can follow the parent chain of any other image.
+
+If ``-t`` or ``--tree`` is passed, this instead renders the full image tree. The repository doesn't need to have
+been checked out in this case.
+
+### Options
+
+  * **`-t, --tree`**: 
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0001_diff.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0001_diff.mdx
new file mode 100644
index 00000000..8ef569e8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0001_diff.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "diff", title: "sgr diff", sidebarTitle: "diff", description: "Show differences between two Splitgraph images."};
+
+```sgr diff [OPTIONS] REPOSITORY [TAG_OR_HASH_1] [TAG_OR_HASH_2]```
+
+Show differences between two Splitgraph images.
+
+The two images must be in the same repository. The actual targets of this command depend
+on the number of arguments passed:
+
+``sgr diff REPOSITORY``
+
+Return the differences between the current HEAD image and the checked out schema.
+
+``sgr diff REPOSITORY TAG_OR_HASH``
+
+Return the differences between the image and its parent.
+
+``sgr diff REPOSITORY TAG_OR_HASH_1 TAG_OR_HASH_2``
+
+Return the differences from the first (earlier) image to the second image.
+
+### Options
+
+  * **`-v, --verbose`**: Include the actual differences rather than just the total number of updated rows.
+  * **`-t, --table-name TEXT`**: Show the differences for a single table.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0002_object.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0002_object.mdx
new file mode 100644
index 00000000..ff8c38a9
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0002_object.mdx
@@ -0,0 +1,14 @@
+export const meta = {id: "object", title: "sgr object", sidebarTitle: "object", description: "Show information about a Splitgraph object."};
+
+```sgr object [OPTIONS] OBJECT_ID```
+
+Show information about a Splitgraph object.
+
+Objects, or fragments, are building blocks of Splitgraph tables: each table consists of multiple immutable fragments
+that can partially overwrite each other. Each fragment might have a parent that it depends on. In addition,
+the smallest and largest values for every column are stored in the fragment's metadata. This information is used
+to choose which objects to download in order to execute a query against a table.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0003_objects.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0003_objects.mdx
new file mode 100644
index 00000000..c56fa727
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0003_objects.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "objects", title: "sgr objects", sidebarTitle: "objects", description: "List objects known to this engine."};
+
+```sgr objects [OPTIONS] ```
+
+List objects known to this engine.
+
+### Options
+
+  * **`--local`**: Show only objects that are physically present on this engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0004_show.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0004_show.mdx
new file mode 100644
index 00000000..4ddcc55d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0004_show.mdx
@@ -0,0 +1,14 @@
+export const meta = {id: "show", title: "sgr show", sidebarTitle: "show", description: "Show information about a Splitgraph image."};
+
+```sgr show [OPTIONS] IMAGE_SPEC```
+
+Show information about a Splitgraph image. This includes its parent, comment, size and creation time.
+
+Note that the size isn't the on-disk footprint, as the image might share some objects with other images
+or if some of the image's objects have not been downloaded.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0005_table.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0005_table.mdx
new file mode 100644
index 00000000..cc681c85
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0005_table.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "table", title: "sgr table", sidebarTitle: "table", description: "Show information about a table in a Splitgraph image."};
+
+```sgr table [OPTIONS] IMAGE_SPEC TABLE_NAME```
+
+Show information about a table in a Splitgraph image.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-v, --verbose`**: Show all of table's objects.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0006_sql.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0006_sql.mdx
new file mode 100644
index 00000000..ea8a304b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0006_sql.mdx
@@ -0,0 +1,34 @@
+export const meta = {id: "sql", title: "sgr sql", sidebarTitle: "sql", description: "Run an SQL statement against the Splitgraph engine."};
+
+```sgr sql [OPTIONS] SQL```
+
+Run an SQL statement against the Splitgraph engine.
+
+There are no restrictions on the contents of the statement: this is the same as running it
+from any other PostgreSQL client.
+
+If ``--schema`` is specified, the statement is run with the ``search_path`` set to that schema. This means
+that these statements are equivalent:
+
+
+```
+sgr sql "SELECT * FROM "noaa/climate".table"
+sgr sql -s noaa/climate "SELECT * FROM table"
+```
+
+If `--image` is specified, this will run the statement against that image using layered querying.
+Only read-only statements are supported. For example:
+
+
+```
+sgr sql -i noaa/climate:latest "SELECT * FROM table"
+```
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-s, --schema TEXT`**: Run SQL against this schema.
+  * **`-i, --image IMAGE`**: Run SQL against this image.
+  * **`-a, --show-all`**: Return all results of the query.
+  * **`-j, --json`**: Return results as JSON
+  * **`-n, --no-transaction`**: Don't wrap the SQL in a transaction.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0007_status.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0007_status.mdx
new file mode 100644
index 00000000..5e312f11
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/0007_status.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "status", title: "sgr status", sidebarTitle: "status", description: "Show the status of the Splitgraph engine."};
+
+```sgr status [OPTIONS] [REPOSITORY]```
+
+Show the status of the Splitgraph engine.
+
+If a repository is passed, show in-depth information about a repository.
+
+If not, show information about all repositories local to the engine. This will show a list
+of all repositories, number of local images and tags, total repository size (theoretical
+maximum size and current on-disk footprint of cached objects) and the current checked
+out image (with LQ if the image is checked out using read-only layered querying).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/metadata.json
new file mode 100644
index 00000000..a2c3f0f8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0001_image-information/metadata.json
@@ -0,0 +1 @@
+{"title": "Image information"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0000_engine-add.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0000_engine-add.mdx
new file mode 100644
index 00000000..c0b69417
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0000_engine-add.mdx
@@ -0,0 +1,26 @@
+export const meta = {id: "engine-add", title: "sgr engine add", sidebarTitle: "engine add", description: "Create and start a Splitgraph engine."};
+
+```sgr engine add [OPTIONS] [NAME]```
+
+Create and start a Splitgraph engine.
+
+This will pull the Splitgraph engine image, start it, create a Postgres user and initialize
+the engine.
+
+This also creates Docker volumes required to persist data/metadata.
+
+The engine Docker container by default will be named `splitgraph_engine_default` and
+its data and metadata volumes will have names `splitgraph_engine_default_data` and
+`splitgraph_engine_default_metadata`.
+
+### Options
+
+  * **`-i, --image TEXT`**: Docker image with the Splitgraph engine
+  * **`-p, --port INTEGER`**: Port to start the engine on
+  * **`-u, --username TEXT`**: 
+  * **`--no-init`**: Don't run `sgr init` on the engine
+  * **`--no-sgconfig`**: Don't add the engine to .sgconfig
+  * **`--inject-source`**: Inject the current Splitgraph source code into the engine using Docker bind mounts
+  * **`--no-pull`**: Don't pull the Docker image
+  * **`--set-default`**: Set the engine as the default engine in the config regardless of its name
+  * **`--password TEXT`**: 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0001_engine-delete.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0001_engine-delete.mdx
new file mode 100644
index 00000000..6229e082
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0001_engine-delete.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "engine-delete", title: "sgr engine delete", sidebarTitle: "engine delete", description: "Delete the Splitgraph engine container."};
+
+```sgr engine delete [OPTIONS] [NAME]```
+
+Delete the Splitgraph engine container.
+
+### Options
+
+  * **`-y, --yes`**: Do not prompt for confirmation.
+  * **`-f, --force`**: Delete the engine anyway if it's running.
+  * **`-v, --with-volumes`**: Include the engine's volumes (if not specified, volumes will be reattached when an engine with the same name is created).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0002_engine-list.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0002_engine-list.mdx
new file mode 100644
index 00000000..a2530db2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0002_engine-list.mdx
@@ -0,0 +1,13 @@
+export const meta = {id: "engine-list", title: "sgr engine list", sidebarTitle: "engine list", description: "List Splitgraph engines."};
+
+```sgr engine list [OPTIONS] ```
+
+List Splitgraph engines.
+
+This only lists Docker containers that were created by sgr engine
+(whose names start with `splitgraph_engine_`. To manage other engines,
+use Docker CLI directly.
+
+### Options
+
+  * **`-a, --include-all`**: Include stopped engine containers.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0003_engine-start.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0003_engine-start.mdx
new file mode 100644
index 00000000..4c9cdf6c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0003_engine-start.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "engine-start", title: "sgr engine start", sidebarTitle: "engine start", description: "Start a Splitgraph engine."};
+
+```sgr engine start [OPTIONS] [NAME]```
+
+Start a Splitgraph engine.
+
+This is a wrapper around the corresponding Docker command.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0004_engine-stop.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0004_engine-stop.mdx
new file mode 100644
index 00000000..7ea64786
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0004_engine-stop.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "engine-stop", title: "sgr engine stop", sidebarTitle: "engine stop", description: "Stop a Splitgraph engine."};
+
+```sgr engine stop [OPTIONS] [NAME]```
+
+Stop a Splitgraph engine.
+
+This is a wrapper around the corresponding Docker command.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0005_engine-upgrade.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0005_engine-upgrade.mdx
new file mode 100644
index 00000000..751cd998
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0005_engine-upgrade.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "engine-upgrade", title: "sgr engine upgrade", sidebarTitle: "engine upgrade", description: "Upgrade a Splitgraph engine."};
+
+```sgr engine upgrade [OPTIONS] [NAME]```
+
+Upgrade a Splitgraph engine.
+
+This consists of shutting down the current Splitgraph engine,
+deleting its Docker container (keeping the actual data and
+metadata volumes intact), creating a container based on a newer
+image and finally reinitializing the engine to perform needed migrations.
+
+### Options
+
+  * **`-i, --image TEXT`**: Docker image with the Splitgraph engine
+  * **`--no-pull`**: Don't pull the new engine image
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0006_engine-log.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0006_engine-log.mdx
new file mode 100644
index 00000000..58859523
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0006_engine-log.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "engine-log", title: "sgr engine log", sidebarTitle: "engine log", description: "Get logs from a Splitgraph engine."};
+
+```sgr engine log [OPTIONS] [NAME]```
+
+Get logs from a Splitgraph engine.
+
+### Options
+
+  * **`-f, --follow`**: Stream logs
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0007_engine-configure.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0007_engine-configure.mdx
new file mode 100644
index 00000000..1be8adcd
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0007_engine-configure.mdx
@@ -0,0 +1,10 @@
+export const meta = {id: "engine-configure", title: "sgr engine configure", sidebarTitle: "engine configure", description: "Inject a configuration file into an engine."};
+
+```sgr engine configure [OPTIONS] [NAME]```
+
+Inject a configuration file into an engine.
+
+This copies the current .sgconfig file (pointed to by SG_CONFIG_FILE) into
+the engine container, making it use that configuration for
+when it's queried through an application other than the sgr client
+(layered querying).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0008_engine-version.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0008_engine-version.mdx
new file mode 100644
index 00000000..d47bfe05
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/0008_engine-version.mdx
@@ -0,0 +1,5 @@
+export const meta = {id: "engine-version", title: "sgr engine version", sidebarTitle: "engine version", description: "Get version of Splitgraph engine."};
+
+```sgr engine version [OPTIONS] [NAME]```
+
+Get version of Splitgraph engine.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/metadata.json
new file mode 100644
index 00000000..3f70a9d2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0002_engine-management/metadata.json
@@ -0,0 +1 @@
+{"title": "Engine management"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0000_csv-export.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0000_csv-export.mdx
new file mode 100644
index 00000000..8408f9f2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0000_csv-export.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "csv-export", title: "sgr csv export", sidebarTitle: "csv export", description: "Export the result of a query as CSV."};
+
+```sgr csv export [OPTIONS] IMAGE_SPEC QUERY```
+
+Export the result of a query as CSV.
+
+### Examples
+
+`sgr csv export noaa/climate "SELECT * FROM rainfall"`
+
+Output everything in the currently checked-out `"rainfall"` table as CSV.
+
+`sgr csv export noaa/climate:dec_2018 "SELECT * FROM rainfall WHERE state = 'AZ' -f dec_2018_az.csv`
+
+Check out the `dec_2018` tag of `noaa/climate` and output values from `"rainfall"` for Arizona to `dec_2018_az.csv`
+
+`sgr csv export --layered noaa/climate:abcdef1234567890 "SELECT * FROM rainfall JOIN other_table ON..."`
+
+Uses layered querying instead to execute a join on tables in a certain image (satisfying the query without
+having to check the image out).
+
+### Options
+
+  * **`-f, --file FILENAME`**: File name to export to, default stdout.
+  * **`-l, --layered`**: Don't materialize the tables, use layered querying instead.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0001_csv-import.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0001_csv-import.mdx
new file mode 100644
index 00000000..5f3eb655
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0001_csv-import.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "csv-import", title: "sgr csv import", sidebarTitle: "csv import", description: "Import a CSV file into a checked-out Splitgraph repository."};
+
+```sgr csv import [OPTIONS] REPOSITORY TABLE```
+
+Import a CSV file into a checked-out Splitgraph repository. This doesn't create a new image, use `sgr commit`
+after the import and any adjustments (e.g. adding primary keys or converting column types) to do so.
+
+If the target table doesn't exist, this will create a new table.
+
+If the target table does exist, this will try and patch the new values in by updating rows that exist in the
+current table (as per its primary key constraints) and inserting new ones. Rows existing in the current table
+but missing in the CSV won't be deleted.
+
+If `-r` is passed, the table will instead be deleted and recreated from the CSV file if it exists.
+
+### Options
+
+  * **`-f, --file FILENAME`**: File name to import data from, default stdin.
+  * **`-r, --replace`**: Replace the table if it already exists.
+  * **`-k, --primary-key TEXT`**: Use the specified column(s) as primary key(s)
+  * **`-t, --override-type <TEXT TEXT>...`**: Explicitly set types of these columns to PG types
+  * **`--encoding TEXT`**: Encoding to use for the CSV file
+  * **`--separator TEXT`**: CSV separator to use
+  * **`--no-header`**: Treats the first line of the CSV as data rather than a header.
+  * **`--skip-schema-check`**: Skips checking that the dataframe is compatible with the target schema.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0002_mount.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0002_mount.mdx
new file mode 100644
index 00000000..85bcb7f5
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0002_mount.mdx
@@ -0,0 +1,10 @@
+export const meta = {id: "mount", title: "sgr mount", sidebarTitle: "mount", description: "Mount foreign databases as Postgres schemas."};
+
+```sgr mount [OPTIONS] ```
+
+Mount foreign databases as Postgres schemas.
+
+Uses the Postgres FDW interface to create a local Postgres schema with foreign tables that map
+to tables in other databases.
+
+See a given mount handler's documentation for handler-specific parameters.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0003_singer-target.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0003_singer-target.mdx
new file mode 100644
index 00000000..c353a781
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/0003_singer-target.mdx
@@ -0,0 +1,23 @@
+export const meta = {id: "singer-target", title: "sgr singer target", sidebarTitle: "singer target", description: "Singer target that loads data into Splitgraph images."};
+
+```sgr singer target [OPTIONS] IMAGE```
+
+Singer target that loads data into Splitgraph images.
+
+This will read data from the stdin from a Singer-compatible tap and load it into
+a Splitgraph image, merging data if the image already exists.
+
+Image must be of the format `[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]` where `HASH_OR_TAG`
+is a tag of an existing image to base the image on. If the repository doesn't exist,
+it will be created.
+
+As this target consumes data from stdin, it will flush the records into a Splitgraph image. By
+default, it will only keep the image if the whole stream has been successfully consumed. To
+make this target completely follow the Singer spec (if it emits state, the records have been
+flushed), pass --failure=keep-both or --failure=delete-old. To delete the old image on success,
+pass --delete-old.
+
+### Options
+
+  * **`-d, --delete-old`**: Delete the old image at the end of ingestion
+  * **`-f, --failure [keep-both|delete-old|delete-new]`**: What to do in case of a failure.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/metadata.json
new file mode 100644
index 00000000..d82f5068
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0003_data-import-export/metadata.json
@@ -0,0 +1 @@
+{"title": "Data import/export"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0000_rm.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0000_rm.mdx
new file mode 100644
index 00000000..47baf9a3
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0000_rm.mdx
@@ -0,0 +1,40 @@
+export const meta = {id: "rm", title: "sgr rm", sidebarTitle: "rm", description: "Delete schemas, repositories or images."};
+
+```sgr rm [OPTIONS] IMAGE_SPEC```
+
+Delete schemas, repositories or images.
+
+If the target of this command is a Postgres schema, this performs DROP SCHEMA CASCADE.
+
+If the target of this command is a Splitgraph repository, this deletes the repository and all of its history.
+
+If the target of this command is an image, this deletes the image and all of its children.
+
+In any case, this command will ask for confirmation of the deletion, unless ``-y`` is passed. If ``-r``
+(``--remote``), is passed, this will perform deletion on a remote Splitgraph engine (registered in the config)
+instead, assuming the user has write access to the remote repository.
+
+This does not delete any physical objects that the deleted repository/images depend on:
+use ``sgr cleanup`` to do that.
+
+### Examples
+
+``sgr rm temporary_schema``
+
+Deletes ``temporary_schema`` from the local engine.
+
+``sgr rm --remote data.splitgraph.com username/repo``
+
+Deletes ``username/repo`` from the Splitgraph registry.
+
+``sgr rm -y username/repo:old_branch``
+
+Deletes the image pointed to by ``old_branch`` as well as all of its children (images created by a commit based
+on this image), as well as all of the tags that point to now deleted images, without asking for confirmation.
+Note this will not delete images that import tables from the deleted images via Splitfiles or indeed the
+physical objects containing the actual tables.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-y, --yes`**: Agree to deletion without confirmation
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0001_init.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0001_init.mdx
new file mode 100644
index 00000000..e4ab8d4d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0001_init.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "init", title: "sgr init", sidebarTitle: "init", description: "Initialize a new repository/engine."};
+
+```sgr init [OPTIONS] [REPOSITORY]```
+
+Initialize a new repository/engine.
+
+### Examples
+
+`sgr init`
+
+Initializes the current local Splitgraph engine by writing some bookkeeping information.
+This is required for the rest of sgr to work.
+
+`sgr init --skip-object-handling`
+
+Initializes a Splitgraph engine without installing audit triggers or object management routines:
+this is useful for engines that aren't intended to be used for image checkouts.
+
+``sgr init new/repo``
+
+Creates a single image with the hash ``00000...`` in ``new/repo``
+
+### Options
+
+  * **`--skip-object-handling`**: 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0002_cleanup.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0002_cleanup.mdx
new file mode 100644
index 00000000..c23688a4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0002_cleanup.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "cleanup", title: "sgr cleanup", sidebarTitle: "cleanup", description: "Prune unneeded objects from the engine."};
+
+```sgr cleanup [OPTIONS] ```
+
+Prune unneeded objects from the engine.
+
+This deletes all objects from the cache that aren't required by any local repository.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0003_prune.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0003_prune.mdx
new file mode 100644
index 00000000..64c2d49b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0003_prune.mdx
@@ -0,0 +1,20 @@
+export const meta = {id: "prune", title: "sgr prune", sidebarTitle: "prune", description: "Cleanup dangling images from a repository."};
+
+```sgr prune [OPTIONS] REPOSITORY```
+
+Cleanup dangling images from a repository.
+
+This includes images not pointed to by any tags (or checked out) and those that aren't required by any of
+such images.
+
+Will ask for confirmation of the deletion, unless ``-y ``is passed. If ``-r`` (``--remote``) is
+passed, this will perform deletion on a remote Splitgraph engine (registered in the config) instead, assuming
+the user has write access to the remote repository.
+
+This does not delete any physical objects that the deleted repository/images depend on:
+use ``sgr cleanup`` to do that.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-y, --yes`**: Agree to deletion without confirmation
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0004_config.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0004_config.mdx
new file mode 100644
index 00000000..7fcaa53c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0004_config.mdx
@@ -0,0 +1,33 @@
+export const meta = {id: "config", title: "sgr config", sidebarTitle: "config", description: "Print the current Splitgraph configuration."};
+
+```sgr config [OPTIONS] ```
+
+Print the current Splitgraph configuration.
+
+This takes into account the local config file, the default values
+and all overrides specified via environment variables.
+
+This command can be used to dump the current Splitgraph configuration into a file:
+
+```
+sgr config --no-shielding --config-format > .sgconfig
+```
+
+...or save a config file overriding an entry:
+
+```
+SG_REPO_LOOKUP=engine1,engine2 sgr config -sc > .sgconfig
+```
+
+If `--conn-string` is passed, this prints out a libpq connection string
+that can be used to connect to the default Splitgraph engine with other tools:
+
+```
+pgcli $(sgr config -n)
+```
+
+### Options
+
+  * **`-s, --no-shielding`**: If set, doesn't replace sensitive values (like passwords) with asterisks
+  * **`-c, --config-format`**: Output configuration in the Splitgraph config file format
+  * **`-n, --conn-string`**: Print a libpq connection string to the engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0005_dump.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0005_dump.mdx
new file mode 100644
index 00000000..111baceb
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0005_dump.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "dump", title: "sgr dump", sidebarTitle: "dump", description: "Dump a repository to SQL."};
+
+```sgr dump [OPTIONS] REPOSITORY```
+
+Dump a repository to SQL.
+
+### Options
+
+  * **`--exclude-object-contents`**: Don't dump the commands needed to recreate objects required by the repository.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0006_eval.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0006_eval.mdx
new file mode 100644
index 00000000..5b4b7f0a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0006_eval.mdx
@@ -0,0 +1,39 @@
+export const meta = {id: "eval", title: "sgr eval", sidebarTitle: "eval", description: "Evaluate a Python snippet using the Splitgraph API."};
+
+```sgr eval [OPTIONS] COMMAND```
+
+Evaluate a Python snippet using the Splitgraph API.
+
+This is for advanced users only and should be only used
+if you know what you are doing.
+
+Normal Python statements are supported and the command is evaluated
+in a namespace where the following is already imported and available:
+
+  * Repository: class that instantiates a Splitgraph repository and makes
+    API functions like .commit(), .checkout() etc available.
+
+  * engine: Current local engine
+
+  * object_manager: an instance of ObjectManager that allows
+    to get information about objects and manage the object cache.
+
+
+Example:
+```
+sgr eval 'import json; print(json.dumps(Repository\
+    .from_schema(repo_name)\
+    .images["latest"]\
+    .get_table(table_name)\
+    .table_schema))' \
+-a repo_name my_repo -a table_name my_table
+```
+
+Will dump the schema of table my_table in the most recent image in my_repo in JSON format.
+
+For more information, see the Splitgraph API reference.
+
+### Options
+
+  * **`--i-know-what-im-doing`**: Pass this if you're sure that the code you're running is safe and don't want to be prompted.
+  * **`-a, --arg <TEXT TEXT>...`**: Make extra variables available in the command's namespace
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0007_upgrade.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0007_upgrade.mdx
new file mode 100644
index 00000000..188e798b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/0007_upgrade.mdx
@@ -0,0 +1,17 @@
+export const meta = {id: "upgrade", title: "sgr upgrade", sidebarTitle: "upgrade", description: "Upgrade sgr client and engine."};
+
+```sgr upgrade [OPTIONS] [VERSION]```
+
+Upgrade sgr client and engine.
+
+This will try to download the most recent stable binary for the current platform
+into the location this binary is running from and then upgrade the default engine.
+
+This method is only supported for single-binary installs and engines managed
+by `sgr engine`.
+
+### Options
+
+  * **`--skip-engine-upgrade`**: Only upgrade the client
+  * **`--path TEXT`**: Override the path to download the new binary to.
+  * **`--force`**: Reinstall older/same versions.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/metadata.json
new file mode 100644
index 00000000..26f7a103
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0004_miscellaneous/metadata.json
@@ -0,0 +1 @@
+{"title": "Miscellaneous"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0000_clone.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0000_clone.mdx
new file mode 100644
index 00000000..7c2929bd
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0000_clone.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "clone", title: "sgr clone", sidebarTitle: "clone", description: "Clone a remote Splitgraph repository/image into a local one."};
+
+```sgr clone [OPTIONS] REMOTE_REPOSITORY_OR_IMAGE [LOCAL_REPOSITORY]```
+
+Clone a remote Splitgraph repository/image into a local one.
+
+The lookup path for the repository is governed by the ``SG_REPO_LOOKUP`` and ``SG_REPO_LOOKUP_OVERRIDE``
+config parameters and can be overridden by the command line ``--remote`` option.
+
+### Options
+
+  * **`-r, --remote TEXT`**: Name of the remote engine
+  * **`-d, --download-all`**: Download all objects immediately instead of on checkout.
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing objects
+  * **`-t, --tags`**: Overwrite tags for pulled image/repo
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0001_push.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0001_push.mdx
new file mode 100644
index 00000000..60ba1e17
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0001_push.mdx
@@ -0,0 +1,30 @@
+export const meta = {id: "push", title: "sgr push", sidebarTitle: "push", description: "Push images the Splitgraph registry or another engine."};
+
+```sgr push [OPTIONS] REPOSITORY_OR_IMAGE [REMOTE_REPOSITORY]```
+
+Push images the Splitgraph registry or another engine.
+
+If an image is not specified (e.g. `sgr push noaa/climate`, this will push all new images.
+
+By default, the repository will be pushed to a repository with the same name in the user's namespace
+(SG_NAMESPACE configuration value which defaults to the username).
+
+If there's a single engine registered in the config (e.g. data.splitgraph.com), it shall be the default
+destination.
+
+If an upstream repository/engine has been configured for this engine with `sgr upstream`,
+it will be used instead.
+
+Finally, if `remote_repository` or `--remote` are passed, they will take precedence.
+
+The actual objects will be uploaded to S3 using Minio. When pushing to another engine,
+you can choose to upload them directly by passing `--handler DB`.
+
+### Options
+
+  * **`-r, --remote []`**: Name of the remote engine
+  * **`-h, --upload-handler TEXT`**: Upload handler
+  * **`-o, --upload-handler-options JSON`**: Upload handler parameters
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing remote objects
+  * **`-t, --tags`**: Overwrite tags for pushed image/repo
+  * **`-u, --reupload-objects`**: Reupload objects that metadata is pushed out for
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0002_pull.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0002_pull.mdx
new file mode 100644
index 00000000..d1b631d1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0002_pull.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "pull", title: "sgr pull", sidebarTitle: "pull", description: "Pull changes / download a single image."};
+
+```sgr pull [OPTIONS] REPOSITORY_OR_IMAGE```
+
+Pull changes / download a single image.
+
+### Options
+
+  * **`-d, --download-all`**: Download all objects immediately instead of on checkout.
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing objects
+  * **`-t, --tags`**: Overwrite tags for pulled image/repo
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0003_upstream.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0003_upstream.mdx
new file mode 100644
index 00000000..32f1d6ec
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/0003_upstream.mdx
@@ -0,0 +1,29 @@
+export const meta = {id: "upstream", title: "sgr upstream", sidebarTitle: "upstream", description: "Get or set the upstream for a repository."};
+
+```sgr upstream [OPTIONS] REPOSITORY```
+
+Get or set the upstream for a repository.
+
+This shows the default repository used for pushes and pulls as well as allows to change it to a different
+remote engine and repository.
+
+The remote engine alias must exist in the config file.
+
+### Examples
+
+``sgr upstream my/repo --set splitgraph.com username/repo``
+
+Sets the upstream for ``my/repo`` to ``username/repo`` existing on the ``splitgraph.com`` engine
+
+``sgr upstream my/repo --reset``
+
+Removes the upstream for ``my/repo``.
+
+``sgr upstream my/repo``
+
+Shows the current upstream for ``my/repo``.
+
+### Options
+
+  * **`-s, --set <TEXT REPOSITORY>...`**: Set the upstream to a engine alias + repository
+  * **`-r, --reset`**: Delete the upstream
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/metadata.json
new file mode 100644
index 00000000..b2c1ab8d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0005_sharing-images/metadata.json
@@ -0,0 +1 @@
+{"title": "Sharing images"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0000_build.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0000_build.mdx
new file mode 100644
index 00000000..2204aae2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0000_build.mdx
@@ -0,0 +1,29 @@
+export const meta = {id: "build", title: "sgr build", sidebarTitle: "build", description: "Build Splitgraph images."};
+
+```sgr build [OPTIONS] SPLITFILE```
+
+Build Splitgraph images.
+
+This executes a Splitfile, building a new image or checking it out from cache if the same
+image had already been built.
+
+### Examples
+
+``sgr build my.splitfile``
+
+Executes ``my.splitfile`` and writes its output into a new repository with the same name
+as the Splitfile (my) unless the name is specified in the Splitfile.
+
+``sgr build my.splitfile -o mynew/repo``
+
+Executes ``my.splitfile`` and writes its output into ``mynew/repo``.
+
+``sgr build my_other.splitfile -o mynew/otherrepo --args PARAM1 VAL1 --args PARAM2 VAL2``
+
+Executes ``my_other.splitfile`` with parameters ``PARAM1`` and ``PARAM2`` set to
+``VAL1`` and  ``VAL2``, respectively.
+
+### Options
+
+  * **`-a, --args <TEXT TEXT>...`**: Parameters to be substituted into the Splitfile. All parameters mentioned in the file must be specified in order for the Splitfile to be executed.
+  * **`-o, --output-repository REPOSITORY`**: Repository to store the result in.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0001_rebuild.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0001_rebuild.mdx
new file mode 100644
index 00000000..8194b0f1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0001_rebuild.mdx
@@ -0,0 +1,27 @@
+export const meta = {id: "rebuild", title: "sgr rebuild", sidebarTitle: "rebuild", description: "Rebuild images against different dependencies."};
+
+```sgr rebuild [OPTIONS] IMAGE_SPEC```
+
+Rebuild images against different dependencies.
+
+Examines the provenance of a Splitgraph image created by a Splitfile and reruns it against different images than
+the ones that were imported by the original run.
+
+### Examples
+
+``sgr rebuild my/repo --against noaa/climate:old_data``
+
+Reconstructs the Splitfile used to create ``my/repo:latest``, replaces all imports from ``noaa/climate`` with
+imports from ``noaa/climate:old_data`` and reruns the Splitfile.
+
+``sgr rebuild my/repo:other_tag -u``
+
+Rebuilds ``my_repo:other_tag`` against the latest versions of all of its dependencies.
+
+Image caching still works in this case: if the result of the rebuild already exists, the image will be checked
+out.
+
+### Options
+
+  * **`-u, --update`**: Rederive the image against the latest version of all dependencies.
+  * **`-a, --against IMAGE`**: Images to substitute into the reconstructed Splitfile, of the form [NAMESPACE/]REPOSITORY[:HASH_OR_TAG]. Default tag is 'latest'.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0002_provenance.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0002_provenance.mdx
new file mode 100644
index 00000000..45d3a5a8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0002_provenance.mdx
@@ -0,0 +1,62 @@
+export const meta = {id: "provenance", title: "sgr provenance", sidebarTitle: "provenance", description: "Reconstruct the provenance of an image."};
+
+```sgr provenance [OPTIONS] IMAGE_SPEC```
+
+Reconstruct the provenance of an image.
+
+This inspects the image to produce a list of images that were used by the Splitfile
+that created it, or a Splitfile with the same effect.
+
+`IMAGE_SPEC` must be of the form `[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]`.
+If no tag is specified, `latest` is used.
+
+### Examples
+
+Assume `my/repo` is produced by the following Splitfile:
+
+```
+FROM MOUNT [...] IMPORT external_table
+FROM noaa/climate IMPORT {SELECT * FROM rainfall_data WHERE state = 'AZ'} AS rainfall_data
+```
+
+`my/repo` will have 2 images: one having `hash_1` (with the `external_table` imported from a mounted database)
+and one having `hash_2` (with both `external_table` and the `rainfall_data` containing the result
+of the query run against the then-latest image in the `noaa/climate` repository).
+
+In this case:
+
+```
+sgr provenance my/repo
+```
+
+Returns a list of repositories and images that were imported by the Splitfile that constructed this image::
+
+```
+my/repo:[hash_2] depends on:
+noaa/climate:[hash_3]
+```
+
+Where `hash_3` is the hash of the latest image in the `noaa/climate` repository at the time the original
+Splitfile was run. However:
+
+```
+sgr provenance -f my/repo
+```
+
+Will try to reconstruct the Splitfile that can be used to build this image. Since the FROM MOUNT command isn't
+reproducible (requires access to the original external database, which is a moving target), this will fail.
+
+If `-e` is passed, this will emit information about irreproducible commands instead of failing.
+
+```
+sgr provenance -ef my/repo
+
+# Splitfile commands used to reconstruct my/repo:[image_hash]
+# Irreproducible Splitfile command of type MOUNT
+FROM noaa/climate:[hash_3] IMPORT {SELECT * FROM rainfall_data WHERE state = 'AZ'}
+```
+
+### Options
+
+  * **`-f, --full`**: Recreate the Splitfile used to create this image
+  * **`-e, --ignore-errors`**: If set, ignore commands that aren't reproducible (like MOUNT or custom commands)
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0003_dependents.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0003_dependents.mdx
new file mode 100644
index 00000000..fc8bc234
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/0003_dependents.mdx
@@ -0,0 +1,21 @@
+export const meta = {id: "dependents", title: "sgr dependents", sidebarTitle: "dependents", description: "List images that were created from an image."};
+
+```sgr dependents [OPTIONS] IMAGE_SPEC```
+
+List images that were created from an image.
+
+This is the inverse of the sgr provenance command. It will list all images that were
+created using a Splitfile that imported data from this image.
+
+By default, this will look at images on the local engine. The engine can be overridden
+with --source-on and --dependents-on. For example:
+
+    sgr dependents --source-on data.splitgraph.com --dependents-on LOCAL noaa/climate:latest
+
+will show all images on the local engine that derived data from `noaa/climate:latest`
+on the Splitgraph registry.
+
+### Options
+
+  * **`-O, --source-on TEXT`**: Override the engine to look the source up on
+  * **`-o, --dependents-on TEXT`**: Override the engine to list dependents from
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/metadata.json
new file mode 100644
index 00000000..50afd08a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0006_splitfile-execution/metadata.json
@@ -0,0 +1 @@
+{"title": "Splitfile execution"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0000_cloud-register.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0000_cloud-register.mdx
new file mode 100644
index 00000000..089ce0c6
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0000_cloud-register.mdx
@@ -0,0 +1,18 @@
+export const meta = {id: "cloud-register", title: "sgr cloud register", sidebarTitle: "cloud register", description: "Register the user on a Splitgraph registry."};
+
+```sgr cloud register [OPTIONS] ```
+
+Register the user on a Splitgraph registry.
+
+By default, this registers the user on data.splitgraph.com,
+obtains a set of machine (API) credentials for the client to communicate
+with the registry and configures the data.splitgraph.com engine.
+
+### Options
+
+  * **`--username TEXT`**: 
+  * **`--password TEXT`**: 
+  * **`--email TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to register on.
+  * **`--accept-tos`**: Accept the registry's Terms of Service
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0001_cloud-login.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0001_cloud-login.mdx
new file mode 100644
index 00000000..cb99d6c1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0001_cloud-login.mdx
@@ -0,0 +1,23 @@
+export const meta = {id: "cloud-login", title: "sgr cloud login", sidebarTitle: "cloud login", description: "Log into a Splitgraph registry with username/password."};
+
+```sgr cloud login [OPTIONS] ```
+
+Log into a Splitgraph registry with username/password.
+
+This will generate a new refresh token (to use the Splitgraph query API)
+and API keys to let sgr access the registry (if they don't already exist
+in the configuration file or if the actual username has changed).
+
+Note that if you already have generated an API key pair but it's not
+in the configuration file, this will generate a new pair instead of
+restoring the existing one, as the API secret is only stored in the configuration file.
+
+If you want to log in using an existing API key pair, use `sgr cloud login-api` instead.
+
+### Options
+
+  * **`--username TEXT`**: 
+  * **`--password TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`--overwrite`**: Overwrite old API keys in the config if they exist
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0002_cloud-login-api.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0002_cloud-login-api.mdx
new file mode 100644
index 00000000..4007fe22
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0002_cloud-login-api.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "cloud-login-api", title: "sgr cloud login-api", sidebarTitle: "cloud login-api", description: "Log into a Splitgraph registry using existing API keys."};
+
+```sgr cloud login-api [OPTIONS] ```
+
+Log into a Splitgraph registry using existing API keys.
+
+This will inject the API keys for the registry into the configuration file
+and generate a new access token.
+
+### Options
+
+  * **`--api-key TEXT`**: 
+  * **`--api-secret TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0003_cloud-sql.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0003_cloud-sql.mdx
new file mode 100644
index 00000000..56c4be0a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0003_cloud-sql.mdx
@@ -0,0 +1,20 @@
+export const meta = {id: "cloud-sql", title: "sgr cloud sql", sidebarTitle: "cloud sql", description: "Run SQL on or connect to the Splitgraph Data Delivery Network."};
+
+```sgr cloud sql [OPTIONS] [QUERY]```
+
+Run SQL on or connect to the Splitgraph Data Delivery Network.
+
+If a query isn't passed, this will return a libpq-compatible connection string to
+the registry's SQL endpoint. It can be used to connect to the endpoint with other SQL clients:
+
+```
+pgcli $(sgr cloud sql)
+```
+
+If a query is passed, this will run an SQL query against the SQL endpoint.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`-a, --show-all`**: Return all results of the query.
+  * **`-j, --json`**: Return results as JSON
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0004_cloud-curl.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0004_cloud-curl.mdx
new file mode 100644
index 00000000..e902965b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0004_cloud-curl.mdx
@@ -0,0 +1,32 @@
+export const meta = {id: "cloud-curl", title: "sgr cloud curl", sidebarTitle: "cloud curl", description: "Query a Splitgraph REST API."};
+
+```sgr cloud curl [OPTIONS] IMAGE [REQUEST_PARAMS]```
+
+Query a Splitgraph REST API.
+
+This is a thin wrapper around curl that performs an HTTP request to Splitgraph Cloud to
+interact with a dataset using PostgREST (http://postgrest.org) or the Splitfile execution service.
+
+The actual invocation is:
+
+```
+curl [API endpoint][request] -H [access_token] [extra curl args].
+```
+
+The image must be of the form `namespace/repository:[hash_or_tag (default latest)]`.
+
+The actual request parameters depend on the request type:
+
+  * For PostgREST: `/table?[postgrest request]` or empty to get the OpenAPI spec for this image.
+    For a reference on how to perform Postgrest requests, see http://postgrest.org/en/latest/api.html.
+  * For the Splitfile executor: a JSON array to be POSTed to the executor, e.g.
+    `'{"command": "FROM some/repo IMPORT some_table AS alias", "tag": "new_tag"}'`.
+
+`--curl-args` allows to pass extra arguments to curl. Note that every argument must be prefixed
+with `--curl-args`, e.g. `--curl-args --cacert --curl-args /path/to/ca.pem`.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`-t, --request-type [postgrest|splitfile]`**: 
+  * **`-c, --curl-args TEXT`**: Extra arguments to be passed to curl
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0005_cloud-readme.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0005_cloud-readme.mdx
new file mode 100644
index 00000000..4d800dc6
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0005_cloud-readme.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "cloud-readme", title: "sgr cloud readme", sidebarTitle: "cloud readme", description: "Upload or a README to a Splitgraph repository."};
+
+```sgr cloud readme [OPTIONS] REPOSITORY README```
+
+Upload or a README to a Splitgraph repository.
+
+The repository must have already been pushed. The README must be a file in Markdown format.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0006_cloud-description.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0006_cloud-description.mdx
new file mode 100644
index 00000000..003c953f
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0006_cloud-description.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "cloud-description", title: "sgr cloud description", sidebarTitle: "cloud description", description: "Upload a description to a Splitgraph repository."};
+
+```sgr cloud description [OPTIONS] REPOSITORY DESCRIPTION```
+
+Upload a description to a Splitgraph repository.
+
+The repository must have already been pushed. The description should be plain text, 160 characters or shorter.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0007_cloud-metadata.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0007_cloud-metadata.mdx
new file mode 100644
index 00000000..c9691e3b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0007_cloud-metadata.mdx
@@ -0,0 +1,19 @@
+export const meta = {id: "cloud-metadata", title: "sgr cloud metadata", sidebarTitle: "cloud metadata", description: "Upload a metadata file to a Splitgraph repository."};
+
+```sgr cloud metadata [OPTIONS] REPOSITORY [METADATA_FILE]```
+
+Upload a metadata file to a Splitgraph repository.
+
+    The metadata file should be in YAML format and have two keys: `readme` and `description`.
+
+    For example:
+
+```
+readme: dataset-readme.md
+description: Dataset description (160 characters max).
+```
+    
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0008_cloud-search.mdx b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0008_cloud-search.mdx
new file mode 100644
index 00000000..c23c31f4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/0008_cloud-search.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "cloud-search", title: "sgr cloud search", sidebarTitle: "cloud search", description: "Search for a repository on the Splitgraph registry."};
+
+```sgr cloud search [OPTIONS] QUERY```
+
+Search for a repository on the Splitgraph registry.
+
+For more advanced search, including filtering by topics, go to the registry's website itself.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`--limit INTEGER RANGE`**: Number of results to return
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/metadata.json
new file mode 100644
index 00000000..25ba655e
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/0007_splitgraph-cloud/metadata.json
@@ -0,0 +1 @@
+{"title": "Splitgraph Cloud"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.4/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.4/metadata.json
new file mode 100644
index 00000000..5072a44c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.4/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.4",
+  "updated_at": "2021-01-26T14:47:52.531Z",
+  "release": {
+    "id": 34976262,
+    "tag_name": "v0.2.4",
+    "target_commitish": "87608746ae196f598a0601f838be338175041027",
+    "created_at": "2020-12-08T10:18:35Z",
+    "published_at": "2020-12-08T10:49:18Z",
+    "assets": [
+      {
+        "id": 29291204,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/29291204",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-12-08T10:46:03Z",
+        "updated_at": "2020-12-08T10:46:05Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.4/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0000_checkout.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0000_checkout.mdx
new file mode 100644
index 00000000..cc805a26
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0000_checkout.mdx
@@ -0,0 +1,30 @@
+export const meta = {id: "checkout", title: "sgr checkout", sidebarTitle: "checkout", description: "Check out a Splitgraph image into a Postgres schema."};
+
+```sgr checkout [OPTIONS] IMAGE_SPEC```
+
+Check out a Splitgraph image into a Postgres schema.
+
+This downloads the required physical objects and materializes all tables, unless ``-l`` or ``--layered`` is passed,
+in which case the objects are downloaded and a foreign data wrapper is set up on the engine to satisfy read-only
+queries by combining results from each table's fragments.
+
+Tables checked out in this way are still presented as normal Postgres tables and can queried in the same way.
+Since the tables aren't materialized, layered querying is faster to set up, but since each query now results in a
+subquery to each object comprising the table, actual query execution is slower than to materialized Postgres tables.
+
+Layered querying is only supported for read-only queries.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. Note that currently, the schema that the
+image is checked out into has to have the same name as the repository. If no image hash or tag is passed,
+"HEAD" is assumed.
+
+If ``-u`` or ``--uncheckout`` is passed, this instead deletes the checked out schema (assuming there are no pending
+changes) and removes the HEAD pointer.
+
+If ``--force`` isn't passed and the schema has pending changes, this will fail.
+
+### Options
+
+  * **`-f, --force`**: Discard all pending changes to the schema
+  * **`-u, --uncheckout`**: Delete the checked out copy instead
+  * **`-l, --layered`**: Don't materialize the tables, use layered querying instead.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0001_commit.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0001_commit.mdx
new file mode 100644
index 00000000..9a2ec1f1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0001_commit.mdx
@@ -0,0 +1,59 @@
+export const meta = {id: "commit", title: "sgr commit", sidebarTitle: "commit", description: "Commit changes to a checked-out Splitgraph repository."};
+
+```sgr commit [OPTIONS] REPOSITORY```
+
+Commit changes to a checked-out Splitgraph repository.
+
+This packages up all changes into a new image. Where a table hasn't been created or had its schema changed,
+this will delta compress the changes. For all other tables (or if ``-s`` has been passed), this will
+store them as full table snapshots.
+
+When a table is stored as a full snapshot, `--chunk-size` sets the maximum size, in rows, of the fragments
+that the table will be split into (default is no splitting). The splitting is done by the
+table's primary key.
+
+If `--split-changesets` is passed, delta-compressed changes will also be split up according to the original
+table chunk boundaries. For example, if there's a change to the first and the 20000th row of a table that was
+originally committed with `--chunk-size=10000`, this will create 2 fragments: one based on the first chunk
+and one on the second chunk of the table.
+
+If `--chunk-sort-keys` is passed, data inside the chunk is sorted by this key (or multiple keys).
+This helps speed up queries on those keys for storage layers than can leverage that (e.g. CStore). The expected format is JSON, e.g. `{table_1: [col_1, col_2]}`
+
+`--index-options` expects a JSON-serialized dictionary of `{table: index_type: column: index_specific_kwargs}`.
+Indexes are used to narrow down the amount of chunks to scan through when running a query. By default, each column
+has a range index (minimum and maximum values) and it's possible to add bloom filtering to speed up queries that
+involve equalities.
+
+Bloom filtering allows to trade off between the space overhead of the index and the probability of a false
+positive (claiming that an object contains a record when it actually doesn't, leading to extra scans).
+
+An example `index-options` dictionary:
+
+
+```
+{
+    "table": {
+        "bloom": {
+            "column_1": {
+                "probability": 0.01,   # Only one of probability
+                "size": 10000          # or size can be specified.
+            }
+        },
+        # Only compute the range index on these columns. By default,
+        # it's computed on all columns and is always computed on the
+        # primary key no matter what.
+        "range": ["column_2", "column_3"]
+    }
+}
+```
+
+### Options
+
+  * **`-s, --snap`**: Do not delta compress the changes and instead store the whole table again. This consumes more space, but makes checkouts faster.
+  * **`-c, --chunk-size INTEGER`**: Split new tables into chunks of this many rows (by primary key). The default value is governed by the SG_COMMIT_CHUNK_SIZE configuration parameter.
+  * **`-k, --chunk-sort-keys JSON`**: Sort the data inside each chunk by this/these key(s)
+  * **`-t, --split-changesets`**: Split changesets for existing tables across original chunk boundaries.
+  * **`-i, --index-options JSON`**: JSON dictionary of extra indexes to calculate on the new objects.
+  * **`-m, --message TEXT`**: Optional commit message
+  * **`-o, --overwrite`**: Overwrite physical objects that already exist
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0002_tag.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0002_tag.mdx
new file mode 100644
index 00000000..89f01837
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0002_tag.mdx
@@ -0,0 +1,36 @@
+export const meta = {id: "tag", title: "sgr tag", sidebarTitle: "tag", description: "Manage tags on images."};
+
+```sgr tag [OPTIONS] IMAGE_SPEC [TAG]```
+
+Manage tags on images.
+
+Depending on the exact invocation, this command can tag a Splitgraph image,
+list all tags in a repository or delete a tag.
+
+### Examples
+
+``sgr tag noaa/climate``
+
+List all tagged images in the ``noaa/climate`` repository and their tags.
+
+``sgr tag noaa/climate:abcdef1234567890``
+
+List all tags assigned to the image ``noaa/climate:abcdef1234567890...``
+
+``sgr tag noaa/climate:abcdef1234567890 my_new_tag``
+
+Tag the image ``noaa/climate:abcdef1234567890...`` with ``my_new_tag``. If the tag already exists, this will
+overwrite the tag.
+
+``sgr tag noaa/climate my_new_tag``
+
+Tag the current ``HEAD`` of ``noaa/climate`` with ``my_new_tag``.
+
+``sgr tag --delete noaa/climate:my_new_tag``
+
+Delete the tag ``my_new_tag`` from ``noaa/climate``.
+
+### Options
+
+  * **`-d, --delete`**: Delete the tag instead.
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0003_import.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0003_import.mdx
new file mode 100644
index 00000000..b69bbfb4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0003_import.mdx
@@ -0,0 +1,32 @@
+export const meta = {id: "import", title: "sgr import", sidebarTitle: "import", description: "Import tables into a Splitgraph repository."};
+
+```sgr import [OPTIONS] IMAGE_SPEC TABLE_OR_QUERY TARGET_REPOSITORY [TARGET_TABLE]```
+
+Import tables into a Splitgraph repository.
+
+Imports a table or a result of a query from a local Splitgraph repository or a Postgres schema into another
+Splitgraph repository.
+
+### Examples
+
+``sgr import noaa/climate:my_tag climate_data my/repository``
+
+Create a new image in ``my/repository`` with the ``climate_data`` table included. This links the new image to
+the physical object, meaning that the history of the ``climate_data`` table is preserved.
+
+If no tag is specified, the 'latest' (not the HEAD image or current state of the checked out image)
+image is used.
+
+``sgr import noaa/climate:my_tag "SELECT * FROM climate_data" my/repository climate_data``
+
+Create a new image in ``my/repository`` with the result of the query stored in the ``climate_data`` table. This
+creates a new physical object without any linkage to the original data, so the history of the ``climate_data``
+table isn't preserved. The SQL query can interact with multiple tables in the source image.
+
+``sgr import other_schema other_table my/repository``
+
+Since other_schema isn't a Splitgraph repository, this will copy ``other_schema.other_table``
+into a new Splitgraph object and add the ``other_table`` table to a new image in ``my/repository``.
+
+Note that importing doesn't discard or commit pending changes in the target Splitgraph repository: a new image
+is created with the new table added, the new table is materialized in the repository and the HEAD pointer is moved.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0004_reindex.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0004_reindex.mdx
new file mode 100644
index 00000000..b640ffe3
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/0004_reindex.mdx
@@ -0,0 +1,19 @@
+export const meta = {id: "reindex", title: "sgr reindex", sidebarTitle: "reindex", description: "Run extra indexes on a table."};
+
+```sgr reindex [OPTIONS] IMAGE_SPEC TABLE_NAME```
+
+Run extra indexes on a table. This will merge the indexing results for all objects
+that a table is formed from with the current object indexes. For explanation of
+what indexes do, see the documentation for `sgr commit`.
+
+If the objects haven't been downloaded yet, this will download them.
+
+Currently reindexing objects that change other objects is unsupported and will raise
+an error. Pass `-o` to ignore these objects and only reindex supported objects.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-i, --index-options JSON`**: JSON dictionary of extra indexes to calculate, e.g. '{"bloom": {"column_1": {"probability": 0.01}}}'  [required]
+  * **`-o, --ignore-patch-objects`**: Ignore objects that change other objects' rows instead of raising an error
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/metadata.json
new file mode 100644
index 00000000..9ef75b16
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0000_image-management-creation/metadata.json
@@ -0,0 +1 @@
+{"title": "Image management/creation"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0000_log.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0000_log.mdx
new file mode 100644
index 00000000..db5078b4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0000_log.mdx
@@ -0,0 +1,18 @@
+export const meta = {id: "log", title: "sgr log", sidebarTitle: "log", description: "Show the history of a Splitgraph repository/image."};
+
+```sgr log [OPTIONS] IMAGE_SPEC```
+
+Show the history of a Splitgraph repository/image.
+
+By default, this shows the history of the current branch, starting from the HEAD pointer and following its
+parent chain.
+
+Alternatively, it can follow the parent chain of any other image.
+
+If ``-t`` or ``--tree`` is passed, this instead renders the full image tree. The repository doesn't need to have
+been checked out in this case.
+
+### Options
+
+  * **`-t, --tree`**: 
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0001_diff.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0001_diff.mdx
new file mode 100644
index 00000000..8ef569e8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0001_diff.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "diff", title: "sgr diff", sidebarTitle: "diff", description: "Show differences between two Splitgraph images."};
+
+```sgr diff [OPTIONS] REPOSITORY [TAG_OR_HASH_1] [TAG_OR_HASH_2]```
+
+Show differences between two Splitgraph images.
+
+The two images must be in the same repository. The actual targets of this command depend
+on the number of arguments passed:
+
+``sgr diff REPOSITORY``
+
+Return the differences between the current HEAD image and the checked out schema.
+
+``sgr diff REPOSITORY TAG_OR_HASH``
+
+Return the differences between the image and its parent.
+
+``sgr diff REPOSITORY TAG_OR_HASH_1 TAG_OR_HASH_2``
+
+Return the differences from the first (earlier) image to the second image.
+
+### Options
+
+  * **`-v, --verbose`**: Include the actual differences rather than just the total number of updated rows.
+  * **`-t, --table-name TEXT`**: Show the differences for a single table.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0002_object.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0002_object.mdx
new file mode 100644
index 00000000..ff8c38a9
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0002_object.mdx
@@ -0,0 +1,14 @@
+export const meta = {id: "object", title: "sgr object", sidebarTitle: "object", description: "Show information about a Splitgraph object."};
+
+```sgr object [OPTIONS] OBJECT_ID```
+
+Show information about a Splitgraph object.
+
+Objects, or fragments, are building blocks of Splitgraph tables: each table consists of multiple immutable fragments
+that can partially overwrite each other. Each fragment might have a parent that it depends on. In addition,
+the smallest and largest values for every column are stored in the fragment's metadata. This information is used
+to choose which objects to download in order to execute a query against a table.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0003_objects.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0003_objects.mdx
new file mode 100644
index 00000000..c56fa727
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0003_objects.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "objects", title: "sgr objects", sidebarTitle: "objects", description: "List objects known to this engine."};
+
+```sgr objects [OPTIONS] ```
+
+List objects known to this engine.
+
+### Options
+
+  * **`--local`**: Show only objects that are physically present on this engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0004_show.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0004_show.mdx
new file mode 100644
index 00000000..4ddcc55d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0004_show.mdx
@@ -0,0 +1,14 @@
+export const meta = {id: "show", title: "sgr show", sidebarTitle: "show", description: "Show information about a Splitgraph image."};
+
+```sgr show [OPTIONS] IMAGE_SPEC```
+
+Show information about a Splitgraph image. This includes its parent, comment, size and creation time.
+
+Note that the size isn't the on-disk footprint, as the image might share some objects with other images
+or if some of the image's objects have not been downloaded.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0005_table.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0005_table.mdx
new file mode 100644
index 00000000..cc681c85
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0005_table.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "table", title: "sgr table", sidebarTitle: "table", description: "Show information about a table in a Splitgraph image."};
+
+```sgr table [OPTIONS] IMAGE_SPEC TABLE_NAME```
+
+Show information about a table in a Splitgraph image.
+
+Image spec must be of the format ``[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]``. If no tag is specified, ``HEAD`` is used.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-v, --verbose`**: Show all of table's objects.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0006_sql.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0006_sql.mdx
new file mode 100644
index 00000000..ea8a304b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0006_sql.mdx
@@ -0,0 +1,34 @@
+export const meta = {id: "sql", title: "sgr sql", sidebarTitle: "sql", description: "Run an SQL statement against the Splitgraph engine."};
+
+```sgr sql [OPTIONS] SQL```
+
+Run an SQL statement against the Splitgraph engine.
+
+There are no restrictions on the contents of the statement: this is the same as running it
+from any other PostgreSQL client.
+
+If ``--schema`` is specified, the statement is run with the ``search_path`` set to that schema. This means
+that these statements are equivalent:
+
+
+```
+sgr sql "SELECT * FROM "noaa/climate".table"
+sgr sql -s noaa/climate "SELECT * FROM table"
+```
+
+If `--image` is specified, this will run the statement against that image using layered querying.
+Only read-only statements are supported. For example:
+
+
+```
+sgr sql -i noaa/climate:latest "SELECT * FROM table"
+```
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-s, --schema TEXT`**: Run SQL against this schema.
+  * **`-i, --image IMAGE`**: Run SQL against this image.
+  * **`-a, --show-all`**: Return all results of the query.
+  * **`-j, --json`**: Return results as JSON
+  * **`-n, --no-transaction`**: Don't wrap the SQL in a transaction.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0007_status.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0007_status.mdx
new file mode 100644
index 00000000..5e312f11
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/0007_status.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "status", title: "sgr status", sidebarTitle: "status", description: "Show the status of the Splitgraph engine."};
+
+```sgr status [OPTIONS] [REPOSITORY]```
+
+Show the status of the Splitgraph engine.
+
+If a repository is passed, show in-depth information about a repository.
+
+If not, show information about all repositories local to the engine. This will show a list
+of all repositories, number of local images and tags, total repository size (theoretical
+maximum size and current on-disk footprint of cached objects) and the current checked
+out image (with LQ if the image is checked out using read-only layered querying).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/metadata.json
new file mode 100644
index 00000000..a2c3f0f8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0001_image-information/metadata.json
@@ -0,0 +1 @@
+{"title": "Image information"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0000_engine-add.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0000_engine-add.mdx
new file mode 100644
index 00000000..c0b69417
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0000_engine-add.mdx
@@ -0,0 +1,26 @@
+export const meta = {id: "engine-add", title: "sgr engine add", sidebarTitle: "engine add", description: "Create and start a Splitgraph engine."};
+
+```sgr engine add [OPTIONS] [NAME]```
+
+Create and start a Splitgraph engine.
+
+This will pull the Splitgraph engine image, start it, create a Postgres user and initialize
+the engine.
+
+This also creates Docker volumes required to persist data/metadata.
+
+The engine Docker container by default will be named `splitgraph_engine_default` and
+its data and metadata volumes will have names `splitgraph_engine_default_data` and
+`splitgraph_engine_default_metadata`.
+
+### Options
+
+  * **`-i, --image TEXT`**: Docker image with the Splitgraph engine
+  * **`-p, --port INTEGER`**: Port to start the engine on
+  * **`-u, --username TEXT`**: 
+  * **`--no-init`**: Don't run `sgr init` on the engine
+  * **`--no-sgconfig`**: Don't add the engine to .sgconfig
+  * **`--inject-source`**: Inject the current Splitgraph source code into the engine using Docker bind mounts
+  * **`--no-pull`**: Don't pull the Docker image
+  * **`--set-default`**: Set the engine as the default engine in the config regardless of its name
+  * **`--password TEXT`**: 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0001_engine-delete.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0001_engine-delete.mdx
new file mode 100644
index 00000000..6229e082
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0001_engine-delete.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "engine-delete", title: "sgr engine delete", sidebarTitle: "engine delete", description: "Delete the Splitgraph engine container."};
+
+```sgr engine delete [OPTIONS] [NAME]```
+
+Delete the Splitgraph engine container.
+
+### Options
+
+  * **`-y, --yes`**: Do not prompt for confirmation.
+  * **`-f, --force`**: Delete the engine anyway if it's running.
+  * **`-v, --with-volumes`**: Include the engine's volumes (if not specified, volumes will be reattached when an engine with the same name is created).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0002_engine-list.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0002_engine-list.mdx
new file mode 100644
index 00000000..a2530db2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0002_engine-list.mdx
@@ -0,0 +1,13 @@
+export const meta = {id: "engine-list", title: "sgr engine list", sidebarTitle: "engine list", description: "List Splitgraph engines."};
+
+```sgr engine list [OPTIONS] ```
+
+List Splitgraph engines.
+
+This only lists Docker containers that were created by sgr engine
+(whose names start with `splitgraph_engine_`. To manage other engines,
+use Docker CLI directly.
+
+### Options
+
+  * **`-a, --include-all`**: Include stopped engine containers.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0003_engine-start.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0003_engine-start.mdx
new file mode 100644
index 00000000..4c9cdf6c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0003_engine-start.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "engine-start", title: "sgr engine start", sidebarTitle: "engine start", description: "Start a Splitgraph engine."};
+
+```sgr engine start [OPTIONS] [NAME]```
+
+Start a Splitgraph engine.
+
+This is a wrapper around the corresponding Docker command.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0004_engine-stop.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0004_engine-stop.mdx
new file mode 100644
index 00000000..7ea64786
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0004_engine-stop.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "engine-stop", title: "sgr engine stop", sidebarTitle: "engine stop", description: "Stop a Splitgraph engine."};
+
+```sgr engine stop [OPTIONS] [NAME]```
+
+Stop a Splitgraph engine.
+
+This is a wrapper around the corresponding Docker command.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0005_engine-upgrade.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0005_engine-upgrade.mdx
new file mode 100644
index 00000000..751cd998
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0005_engine-upgrade.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "engine-upgrade", title: "sgr engine upgrade", sidebarTitle: "engine upgrade", description: "Upgrade a Splitgraph engine."};
+
+```sgr engine upgrade [OPTIONS] [NAME]```
+
+Upgrade a Splitgraph engine.
+
+This consists of shutting down the current Splitgraph engine,
+deleting its Docker container (keeping the actual data and
+metadata volumes intact), creating a container based on a newer
+image and finally reinitializing the engine to perform needed migrations.
+
+### Options
+
+  * **`-i, --image TEXT`**: Docker image with the Splitgraph engine
+  * **`--no-pull`**: Don't pull the new engine image
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0006_engine-log.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0006_engine-log.mdx
new file mode 100644
index 00000000..58859523
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0006_engine-log.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "engine-log", title: "sgr engine log", sidebarTitle: "engine log", description: "Get logs from a Splitgraph engine."};
+
+```sgr engine log [OPTIONS] [NAME]```
+
+Get logs from a Splitgraph engine.
+
+### Options
+
+  * **`-f, --follow`**: Stream logs
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0007_engine-configure.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0007_engine-configure.mdx
new file mode 100644
index 00000000..1be8adcd
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0007_engine-configure.mdx
@@ -0,0 +1,10 @@
+export const meta = {id: "engine-configure", title: "sgr engine configure", sidebarTitle: "engine configure", description: "Inject a configuration file into an engine."};
+
+```sgr engine configure [OPTIONS] [NAME]```
+
+Inject a configuration file into an engine.
+
+This copies the current .sgconfig file (pointed to by SG_CONFIG_FILE) into
+the engine container, making it use that configuration for
+when it's queried through an application other than the sgr client
+(layered querying).
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0008_engine-version.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0008_engine-version.mdx
new file mode 100644
index 00000000..d47bfe05
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/0008_engine-version.mdx
@@ -0,0 +1,5 @@
+export const meta = {id: "engine-version", title: "sgr engine version", sidebarTitle: "engine version", description: "Get version of Splitgraph engine."};
+
+```sgr engine version [OPTIONS] [NAME]```
+
+Get version of Splitgraph engine.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/metadata.json
new file mode 100644
index 00000000..3f70a9d2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0002_engine-management/metadata.json
@@ -0,0 +1 @@
+{"title": "Engine management"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0000_csv-export.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0000_csv-export.mdx
new file mode 100644
index 00000000..8408f9f2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0000_csv-export.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "csv-export", title: "sgr csv export", sidebarTitle: "csv export", description: "Export the result of a query as CSV."};
+
+```sgr csv export [OPTIONS] IMAGE_SPEC QUERY```
+
+Export the result of a query as CSV.
+
+### Examples
+
+`sgr csv export noaa/climate "SELECT * FROM rainfall"`
+
+Output everything in the currently checked-out `"rainfall"` table as CSV.
+
+`sgr csv export noaa/climate:dec_2018 "SELECT * FROM rainfall WHERE state = 'AZ' -f dec_2018_az.csv`
+
+Check out the `dec_2018` tag of `noaa/climate` and output values from `"rainfall"` for Arizona to `dec_2018_az.csv`
+
+`sgr csv export --layered noaa/climate:abcdef1234567890 "SELECT * FROM rainfall JOIN other_table ON..."`
+
+Uses layered querying instead to execute a join on tables in a certain image (satisfying the query without
+having to check the image out).
+
+### Options
+
+  * **`-f, --file FILENAME`**: File name to export to, default stdout.
+  * **`-l, --layered`**: Don't materialize the tables, use layered querying instead.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0001_csv-import.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0001_csv-import.mdx
new file mode 100644
index 00000000..5f3eb655
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0001_csv-import.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "csv-import", title: "sgr csv import", sidebarTitle: "csv import", description: "Import a CSV file into a checked-out Splitgraph repository."};
+
+```sgr csv import [OPTIONS] REPOSITORY TABLE```
+
+Import a CSV file into a checked-out Splitgraph repository. This doesn't create a new image, use `sgr commit`
+after the import and any adjustments (e.g. adding primary keys or converting column types) to do so.
+
+If the target table doesn't exist, this will create a new table.
+
+If the target table does exist, this will try and patch the new values in by updating rows that exist in the
+current table (as per its primary key constraints) and inserting new ones. Rows existing in the current table
+but missing in the CSV won't be deleted.
+
+If `-r` is passed, the table will instead be deleted and recreated from the CSV file if it exists.
+
+### Options
+
+  * **`-f, --file FILENAME`**: File name to import data from, default stdin.
+  * **`-r, --replace`**: Replace the table if it already exists.
+  * **`-k, --primary-key TEXT`**: Use the specified column(s) as primary key(s)
+  * **`-t, --override-type <TEXT TEXT>...`**: Explicitly set types of these columns to PG types
+  * **`--encoding TEXT`**: Encoding to use for the CSV file
+  * **`--separator TEXT`**: CSV separator to use
+  * **`--no-header`**: Treats the first line of the CSV as data rather than a header.
+  * **`--skip-schema-check`**: Skips checking that the dataframe is compatible with the target schema.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0002_mount.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0002_mount.mdx
new file mode 100644
index 00000000..85bcb7f5
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0002_mount.mdx
@@ -0,0 +1,10 @@
+export const meta = {id: "mount", title: "sgr mount", sidebarTitle: "mount", description: "Mount foreign databases as Postgres schemas."};
+
+```sgr mount [OPTIONS] ```
+
+Mount foreign databases as Postgres schemas.
+
+Uses the Postgres FDW interface to create a local Postgres schema with foreign tables that map
+to tables in other databases.
+
+See a given mount handler's documentation for handler-specific parameters.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0003_singer-target.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0003_singer-target.mdx
new file mode 100644
index 00000000..c353a781
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/0003_singer-target.mdx
@@ -0,0 +1,23 @@
+export const meta = {id: "singer-target", title: "sgr singer target", sidebarTitle: "singer target", description: "Singer target that loads data into Splitgraph images."};
+
+```sgr singer target [OPTIONS] IMAGE```
+
+Singer target that loads data into Splitgraph images.
+
+This will read data from the stdin from a Singer-compatible tap and load it into
+a Splitgraph image, merging data if the image already exists.
+
+Image must be of the format `[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]` where `HASH_OR_TAG`
+is a tag of an existing image to base the image on. If the repository doesn't exist,
+it will be created.
+
+As this target consumes data from stdin, it will flush the records into a Splitgraph image. By
+default, it will only keep the image if the whole stream has been successfully consumed. To
+make this target completely follow the Singer spec (if it emits state, the records have been
+flushed), pass --failure=keep-both or --failure=delete-old. To delete the old image on success,
+pass --delete-old.
+
+### Options
+
+  * **`-d, --delete-old`**: Delete the old image at the end of ingestion
+  * **`-f, --failure [keep-both|delete-old|delete-new]`**: What to do in case of a failure.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/metadata.json
new file mode 100644
index 00000000..d82f5068
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0003_data-import-export/metadata.json
@@ -0,0 +1 @@
+{"title": "Data import/export"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0000_rm.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0000_rm.mdx
new file mode 100644
index 00000000..47baf9a3
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0000_rm.mdx
@@ -0,0 +1,40 @@
+export const meta = {id: "rm", title: "sgr rm", sidebarTitle: "rm", description: "Delete schemas, repositories or images."};
+
+```sgr rm [OPTIONS] IMAGE_SPEC```
+
+Delete schemas, repositories or images.
+
+If the target of this command is a Postgres schema, this performs DROP SCHEMA CASCADE.
+
+If the target of this command is a Splitgraph repository, this deletes the repository and all of its history.
+
+If the target of this command is an image, this deletes the image and all of its children.
+
+In any case, this command will ask for confirmation of the deletion, unless ``-y`` is passed. If ``-r``
+(``--remote``), is passed, this will perform deletion on a remote Splitgraph engine (registered in the config)
+instead, assuming the user has write access to the remote repository.
+
+This does not delete any physical objects that the deleted repository/images depend on:
+use ``sgr cleanup`` to do that.
+
+### Examples
+
+``sgr rm temporary_schema``
+
+Deletes ``temporary_schema`` from the local engine.
+
+``sgr rm --remote data.splitgraph.com username/repo``
+
+Deletes ``username/repo`` from the Splitgraph registry.
+
+``sgr rm -y username/repo:old_branch``
+
+Deletes the image pointed to by ``old_branch`` as well as all of its children (images created by a commit based
+on this image), as well as all of the tags that point to now deleted images, without asking for confirmation.
+Note this will not delete images that import tables from the deleted images via Splitfiles or indeed the
+physical objects containing the actual tables.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-y, --yes`**: Agree to deletion without confirmation
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0001_init.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0001_init.mdx
new file mode 100644
index 00000000..e4ab8d4d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0001_init.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "init", title: "sgr init", sidebarTitle: "init", description: "Initialize a new repository/engine."};
+
+```sgr init [OPTIONS] [REPOSITORY]```
+
+Initialize a new repository/engine.
+
+### Examples
+
+`sgr init`
+
+Initializes the current local Splitgraph engine by writing some bookkeeping information.
+This is required for the rest of sgr to work.
+
+`sgr init --skip-object-handling`
+
+Initializes a Splitgraph engine without installing audit triggers or object management routines:
+this is useful for engines that aren't intended to be used for image checkouts.
+
+``sgr init new/repo``
+
+Creates a single image with the hash ``00000...`` in ``new/repo``
+
+### Options
+
+  * **`--skip-object-handling`**: 
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0002_cleanup.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0002_cleanup.mdx
new file mode 100644
index 00000000..c23688a4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0002_cleanup.mdx
@@ -0,0 +1,7 @@
+export const meta = {id: "cleanup", title: "sgr cleanup", sidebarTitle: "cleanup", description: "Prune unneeded objects from the engine."};
+
+```sgr cleanup [OPTIONS] ```
+
+Prune unneeded objects from the engine.
+
+This deletes all objects from the cache that aren't required by any local repository.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0003_prune.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0003_prune.mdx
new file mode 100644
index 00000000..64c2d49b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0003_prune.mdx
@@ -0,0 +1,20 @@
+export const meta = {id: "prune", title: "sgr prune", sidebarTitle: "prune", description: "Cleanup dangling images from a repository."};
+
+```sgr prune [OPTIONS] REPOSITORY```
+
+Cleanup dangling images from a repository.
+
+This includes images not pointed to by any tags (or checked out) and those that aren't required by any of
+such images.
+
+Will ask for confirmation of the deletion, unless ``-y ``is passed. If ``-r`` (``--remote``) is
+passed, this will perform deletion on a remote Splitgraph engine (registered in the config) instead, assuming
+the user has write access to the remote repository.
+
+This does not delete any physical objects that the deleted repository/images depend on:
+use ``sgr cleanup`` to do that.
+
+### Options
+
+  * **`-r, --remote []`**: Perform operation on a different remote engine
+  * **`-y, --yes`**: Agree to deletion without confirmation
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0004_config.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0004_config.mdx
new file mode 100644
index 00000000..7fcaa53c
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0004_config.mdx
@@ -0,0 +1,33 @@
+export const meta = {id: "config", title: "sgr config", sidebarTitle: "config", description: "Print the current Splitgraph configuration."};
+
+```sgr config [OPTIONS] ```
+
+Print the current Splitgraph configuration.
+
+This takes into account the local config file, the default values
+and all overrides specified via environment variables.
+
+This command can be used to dump the current Splitgraph configuration into a file:
+
+```
+sgr config --no-shielding --config-format > .sgconfig
+```
+
+...or save a config file overriding an entry:
+
+```
+SG_REPO_LOOKUP=engine1,engine2 sgr config -sc > .sgconfig
+```
+
+If `--conn-string` is passed, this prints out a libpq connection string
+that can be used to connect to the default Splitgraph engine with other tools:
+
+```
+pgcli $(sgr config -n)
+```
+
+### Options
+
+  * **`-s, --no-shielding`**: If set, doesn't replace sensitive values (like passwords) with asterisks
+  * **`-c, --config-format`**: Output configuration in the Splitgraph config file format
+  * **`-n, --conn-string`**: Print a libpq connection string to the engine
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0005_dump.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0005_dump.mdx
new file mode 100644
index 00000000..111baceb
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0005_dump.mdx
@@ -0,0 +1,9 @@
+export const meta = {id: "dump", title: "sgr dump", sidebarTitle: "dump", description: "Dump a repository to SQL."};
+
+```sgr dump [OPTIONS] REPOSITORY```
+
+Dump a repository to SQL.
+
+### Options
+
+  * **`--exclude-object-contents`**: Don't dump the commands needed to recreate objects required by the repository.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0006_eval.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0006_eval.mdx
new file mode 100644
index 00000000..5b4b7f0a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0006_eval.mdx
@@ -0,0 +1,39 @@
+export const meta = {id: "eval", title: "sgr eval", sidebarTitle: "eval", description: "Evaluate a Python snippet using the Splitgraph API."};
+
+```sgr eval [OPTIONS] COMMAND```
+
+Evaluate a Python snippet using the Splitgraph API.
+
+This is for advanced users only and should be only used
+if you know what you are doing.
+
+Normal Python statements are supported and the command is evaluated
+in a namespace where the following is already imported and available:
+
+  * Repository: class that instantiates a Splitgraph repository and makes
+    API functions like .commit(), .checkout() etc available.
+
+  * engine: Current local engine
+
+  * object_manager: an instance of ObjectManager that allows
+    to get information about objects and manage the object cache.
+
+
+Example:
+```
+sgr eval 'import json; print(json.dumps(Repository\
+    .from_schema(repo_name)\
+    .images["latest"]\
+    .get_table(table_name)\
+    .table_schema))' \
+-a repo_name my_repo -a table_name my_table
+```
+
+Will dump the schema of table my_table in the most recent image in my_repo in JSON format.
+
+For more information, see the Splitgraph API reference.
+
+### Options
+
+  * **`--i-know-what-im-doing`**: Pass this if you're sure that the code you're running is safe and don't want to be prompted.
+  * **`-a, --arg <TEXT TEXT>...`**: Make extra variables available in the command's namespace
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0007_upgrade.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0007_upgrade.mdx
new file mode 100644
index 00000000..188e798b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/0007_upgrade.mdx
@@ -0,0 +1,17 @@
+export const meta = {id: "upgrade", title: "sgr upgrade", sidebarTitle: "upgrade", description: "Upgrade sgr client and engine."};
+
+```sgr upgrade [OPTIONS] [VERSION]```
+
+Upgrade sgr client and engine.
+
+This will try to download the most recent stable binary for the current platform
+into the location this binary is running from and then upgrade the default engine.
+
+This method is only supported for single-binary installs and engines managed
+by `sgr engine`.
+
+### Options
+
+  * **`--skip-engine-upgrade`**: Only upgrade the client
+  * **`--path TEXT`**: Override the path to download the new binary to.
+  * **`--force`**: Reinstall older/same versions.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/metadata.json
new file mode 100644
index 00000000..26f7a103
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0004_miscellaneous/metadata.json
@@ -0,0 +1 @@
+{"title": "Miscellaneous"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0000_clone.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0000_clone.mdx
new file mode 100644
index 00000000..7c2929bd
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0000_clone.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "clone", title: "sgr clone", sidebarTitle: "clone", description: "Clone a remote Splitgraph repository/image into a local one."};
+
+```sgr clone [OPTIONS] REMOTE_REPOSITORY_OR_IMAGE [LOCAL_REPOSITORY]```
+
+Clone a remote Splitgraph repository/image into a local one.
+
+The lookup path for the repository is governed by the ``SG_REPO_LOOKUP`` and ``SG_REPO_LOOKUP_OVERRIDE``
+config parameters and can be overridden by the command line ``--remote`` option.
+
+### Options
+
+  * **`-r, --remote TEXT`**: Name of the remote engine
+  * **`-d, --download-all`**: Download all objects immediately instead of on checkout.
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing objects
+  * **`-t, --tags`**: Overwrite tags for pulled image/repo
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0001_push.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0001_push.mdx
new file mode 100644
index 00000000..60ba1e17
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0001_push.mdx
@@ -0,0 +1,30 @@
+export const meta = {id: "push", title: "sgr push", sidebarTitle: "push", description: "Push images the Splitgraph registry or another engine."};
+
+```sgr push [OPTIONS] REPOSITORY_OR_IMAGE [REMOTE_REPOSITORY]```
+
+Push images the Splitgraph registry or another engine.
+
+If an image is not specified (e.g. `sgr push noaa/climate`, this will push all new images.
+
+By default, the repository will be pushed to a repository with the same name in the user's namespace
+(SG_NAMESPACE configuration value which defaults to the username).
+
+If there's a single engine registered in the config (e.g. data.splitgraph.com), it shall be the default
+destination.
+
+If an upstream repository/engine has been configured for this engine with `sgr upstream`,
+it will be used instead.
+
+Finally, if `remote_repository` or `--remote` are passed, they will take precedence.
+
+The actual objects will be uploaded to S3 using Minio. When pushing to another engine,
+you can choose to upload them directly by passing `--handler DB`.
+
+### Options
+
+  * **`-r, --remote []`**: Name of the remote engine
+  * **`-h, --upload-handler TEXT`**: Upload handler
+  * **`-o, --upload-handler-options JSON`**: Upload handler parameters
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing remote objects
+  * **`-t, --tags`**: Overwrite tags for pushed image/repo
+  * **`-u, --reupload-objects`**: Reupload objects that metadata is pushed out for
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0002_pull.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0002_pull.mdx
new file mode 100644
index 00000000..d1b631d1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0002_pull.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "pull", title: "sgr pull", sidebarTitle: "pull", description: "Pull changes / download a single image."};
+
+```sgr pull [OPTIONS] REPOSITORY_OR_IMAGE```
+
+Pull changes / download a single image.
+
+### Options
+
+  * **`-d, --download-all`**: Download all objects immediately instead of on checkout.
+  * **`-f, --overwrite-object-meta`**: Overwrite metadata for existing objects
+  * **`-t, --tags`**: Overwrite tags for pulled image/repo
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0003_upstream.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0003_upstream.mdx
new file mode 100644
index 00000000..32f1d6ec
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/0003_upstream.mdx
@@ -0,0 +1,29 @@
+export const meta = {id: "upstream", title: "sgr upstream", sidebarTitle: "upstream", description: "Get or set the upstream for a repository."};
+
+```sgr upstream [OPTIONS] REPOSITORY```
+
+Get or set the upstream for a repository.
+
+This shows the default repository used for pushes and pulls as well as allows to change it to a different
+remote engine and repository.
+
+The remote engine alias must exist in the config file.
+
+### Examples
+
+``sgr upstream my/repo --set splitgraph.com username/repo``
+
+Sets the upstream for ``my/repo`` to ``username/repo`` existing on the ``splitgraph.com`` engine
+
+``sgr upstream my/repo --reset``
+
+Removes the upstream for ``my/repo``.
+
+``sgr upstream my/repo``
+
+Shows the current upstream for ``my/repo``.
+
+### Options
+
+  * **`-s, --set <TEXT REPOSITORY>...`**: Set the upstream to a engine alias + repository
+  * **`-r, --reset`**: Delete the upstream
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/metadata.json
new file mode 100644
index 00000000..b2c1ab8d
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0005_sharing-images/metadata.json
@@ -0,0 +1 @@
+{"title": "Sharing images"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0000_build.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0000_build.mdx
new file mode 100644
index 00000000..2204aae2
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0000_build.mdx
@@ -0,0 +1,29 @@
+export const meta = {id: "build", title: "sgr build", sidebarTitle: "build", description: "Build Splitgraph images."};
+
+```sgr build [OPTIONS] SPLITFILE```
+
+Build Splitgraph images.
+
+This executes a Splitfile, building a new image or checking it out from cache if the same
+image had already been built.
+
+### Examples
+
+``sgr build my.splitfile``
+
+Executes ``my.splitfile`` and writes its output into a new repository with the same name
+as the Splitfile (my) unless the name is specified in the Splitfile.
+
+``sgr build my.splitfile -o mynew/repo``
+
+Executes ``my.splitfile`` and writes its output into ``mynew/repo``.
+
+``sgr build my_other.splitfile -o mynew/otherrepo --args PARAM1 VAL1 --args PARAM2 VAL2``
+
+Executes ``my_other.splitfile`` with parameters ``PARAM1`` and ``PARAM2`` set to
+``VAL1`` and  ``VAL2``, respectively.
+
+### Options
+
+  * **`-a, --args <TEXT TEXT>...`**: Parameters to be substituted into the Splitfile. All parameters mentioned in the file must be specified in order for the Splitfile to be executed.
+  * **`-o, --output-repository REPOSITORY`**: Repository to store the result in.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0001_rebuild.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0001_rebuild.mdx
new file mode 100644
index 00000000..8194b0f1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0001_rebuild.mdx
@@ -0,0 +1,27 @@
+export const meta = {id: "rebuild", title: "sgr rebuild", sidebarTitle: "rebuild", description: "Rebuild images against different dependencies."};
+
+```sgr rebuild [OPTIONS] IMAGE_SPEC```
+
+Rebuild images against different dependencies.
+
+Examines the provenance of a Splitgraph image created by a Splitfile and reruns it against different images than
+the ones that were imported by the original run.
+
+### Examples
+
+``sgr rebuild my/repo --against noaa/climate:old_data``
+
+Reconstructs the Splitfile used to create ``my/repo:latest``, replaces all imports from ``noaa/climate`` with
+imports from ``noaa/climate:old_data`` and reruns the Splitfile.
+
+``sgr rebuild my/repo:other_tag -u``
+
+Rebuilds ``my_repo:other_tag`` against the latest versions of all of its dependencies.
+
+Image caching still works in this case: if the result of the rebuild already exists, the image will be checked
+out.
+
+### Options
+
+  * **`-u, --update`**: Rederive the image against the latest version of all dependencies.
+  * **`-a, --against IMAGE`**: Images to substitute into the reconstructed Splitfile, of the form [NAMESPACE/]REPOSITORY[:HASH_OR_TAG]. Default tag is 'latest'.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0002_provenance.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0002_provenance.mdx
new file mode 100644
index 00000000..45d3a5a8
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0002_provenance.mdx
@@ -0,0 +1,62 @@
+export const meta = {id: "provenance", title: "sgr provenance", sidebarTitle: "provenance", description: "Reconstruct the provenance of an image."};
+
+```sgr provenance [OPTIONS] IMAGE_SPEC```
+
+Reconstruct the provenance of an image.
+
+This inspects the image to produce a list of images that were used by the Splitfile
+that created it, or a Splitfile with the same effect.
+
+`IMAGE_SPEC` must be of the form `[NAMESPACE/]REPOSITORY[:HASH_OR_TAG]`.
+If no tag is specified, `latest` is used.
+
+### Examples
+
+Assume `my/repo` is produced by the following Splitfile:
+
+```
+FROM MOUNT [...] IMPORT external_table
+FROM noaa/climate IMPORT {SELECT * FROM rainfall_data WHERE state = 'AZ'} AS rainfall_data
+```
+
+`my/repo` will have 2 images: one having `hash_1` (with the `external_table` imported from a mounted database)
+and one having `hash_2` (with both `external_table` and the `rainfall_data` containing the result
+of the query run against the then-latest image in the `noaa/climate` repository).
+
+In this case:
+
+```
+sgr provenance my/repo
+```
+
+Returns a list of repositories and images that were imported by the Splitfile that constructed this image::
+
+```
+my/repo:[hash_2] depends on:
+noaa/climate:[hash_3]
+```
+
+Where `hash_3` is the hash of the latest image in the `noaa/climate` repository at the time the original
+Splitfile was run. However:
+
+```
+sgr provenance -f my/repo
+```
+
+Will try to reconstruct the Splitfile that can be used to build this image. Since the FROM MOUNT command isn't
+reproducible (requires access to the original external database, which is a moving target), this will fail.
+
+If `-e` is passed, this will emit information about irreproducible commands instead of failing.
+
+```
+sgr provenance -ef my/repo
+
+# Splitfile commands used to reconstruct my/repo:[image_hash]
+# Irreproducible Splitfile command of type MOUNT
+FROM noaa/climate:[hash_3] IMPORT {SELECT * FROM rainfall_data WHERE state = 'AZ'}
+```
+
+### Options
+
+  * **`-f, --full`**: Recreate the Splitfile used to create this image
+  * **`-e, --ignore-errors`**: If set, ignore commands that aren't reproducible (like MOUNT or custom commands)
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0003_dependents.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0003_dependents.mdx
new file mode 100644
index 00000000..fc8bc234
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/0003_dependents.mdx
@@ -0,0 +1,21 @@
+export const meta = {id: "dependents", title: "sgr dependents", sidebarTitle: "dependents", description: "List images that were created from an image."};
+
+```sgr dependents [OPTIONS] IMAGE_SPEC```
+
+List images that were created from an image.
+
+This is the inverse of the sgr provenance command. It will list all images that were
+created using a Splitfile that imported data from this image.
+
+By default, this will look at images on the local engine. The engine can be overridden
+with --source-on and --dependents-on. For example:
+
+    sgr dependents --source-on data.splitgraph.com --dependents-on LOCAL noaa/climate:latest
+
+will show all images on the local engine that derived data from `noaa/climate:latest`
+on the Splitgraph registry.
+
+### Options
+
+  * **`-O, --source-on TEXT`**: Override the engine to look the source up on
+  * **`-o, --dependents-on TEXT`**: Override the engine to list dependents from
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/metadata.json
new file mode 100644
index 00000000..50afd08a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0006_splitfile-execution/metadata.json
@@ -0,0 +1 @@
+{"title": "Splitfile execution"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0000_cloud-register.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0000_cloud-register.mdx
new file mode 100644
index 00000000..089ce0c6
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0000_cloud-register.mdx
@@ -0,0 +1,18 @@
+export const meta = {id: "cloud-register", title: "sgr cloud register", sidebarTitle: "cloud register", description: "Register the user on a Splitgraph registry."};
+
+```sgr cloud register [OPTIONS] ```
+
+Register the user on a Splitgraph registry.
+
+By default, this registers the user on data.splitgraph.com,
+obtains a set of machine (API) credentials for the client to communicate
+with the registry and configures the data.splitgraph.com engine.
+
+### Options
+
+  * **`--username TEXT`**: 
+  * **`--password TEXT`**: 
+  * **`--email TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to register on.
+  * **`--accept-tos`**: Accept the registry's Terms of Service
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0001_cloud-login.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0001_cloud-login.mdx
new file mode 100644
index 00000000..cb99d6c1
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0001_cloud-login.mdx
@@ -0,0 +1,23 @@
+export const meta = {id: "cloud-login", title: "sgr cloud login", sidebarTitle: "cloud login", description: "Log into a Splitgraph registry with username/password."};
+
+```sgr cloud login [OPTIONS] ```
+
+Log into a Splitgraph registry with username/password.
+
+This will generate a new refresh token (to use the Splitgraph query API)
+and API keys to let sgr access the registry (if they don't already exist
+in the configuration file or if the actual username has changed).
+
+Note that if you already have generated an API key pair but it's not
+in the configuration file, this will generate a new pair instead of
+restoring the existing one, as the API secret is only stored in the configuration file.
+
+If you want to log in using an existing API key pair, use `sgr cloud login-api` instead.
+
+### Options
+
+  * **`--username TEXT`**: 
+  * **`--password TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`--overwrite`**: Overwrite old API keys in the config if they exist
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0002_cloud-login-api.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0002_cloud-login-api.mdx
new file mode 100644
index 00000000..4007fe22
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0002_cloud-login-api.mdx
@@ -0,0 +1,15 @@
+export const meta = {id: "cloud-login-api", title: "sgr cloud login-api", sidebarTitle: "cloud login-api", description: "Log into a Splitgraph registry using existing API keys."};
+
+```sgr cloud login-api [OPTIONS] ```
+
+Log into a Splitgraph registry using existing API keys.
+
+This will inject the API keys for the registry into the configuration file
+and generate a new access token.
+
+### Options
+
+  * **`--api-key TEXT`**: 
+  * **`--api-secret TEXT`**: 
+  * **`--remote TEXT`**: Name of the remote registry to log into.
+  * **`-s, --skip-inject`**: Don't try to copy the config into all engines
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0003_cloud-sql.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0003_cloud-sql.mdx
new file mode 100644
index 00000000..56c4be0a
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0003_cloud-sql.mdx
@@ -0,0 +1,20 @@
+export const meta = {id: "cloud-sql", title: "sgr cloud sql", sidebarTitle: "cloud sql", description: "Run SQL on or connect to the Splitgraph Data Delivery Network."};
+
+```sgr cloud sql [OPTIONS] [QUERY]```
+
+Run SQL on or connect to the Splitgraph Data Delivery Network.
+
+If a query isn't passed, this will return a libpq-compatible connection string to
+the registry's SQL endpoint. It can be used to connect to the endpoint with other SQL clients:
+
+```
+pgcli $(sgr cloud sql)
+```
+
+If a query is passed, this will run an SQL query against the SQL endpoint.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`-a, --show-all`**: Return all results of the query.
+  * **`-j, --json`**: Return results as JSON
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0004_cloud-curl.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0004_cloud-curl.mdx
new file mode 100644
index 00000000..e902965b
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0004_cloud-curl.mdx
@@ -0,0 +1,32 @@
+export const meta = {id: "cloud-curl", title: "sgr cloud curl", sidebarTitle: "cloud curl", description: "Query a Splitgraph REST API."};
+
+```sgr cloud curl [OPTIONS] IMAGE [REQUEST_PARAMS]```
+
+Query a Splitgraph REST API.
+
+This is a thin wrapper around curl that performs an HTTP request to Splitgraph Cloud to
+interact with a dataset using PostgREST (http://postgrest.org) or the Splitfile execution service.
+
+The actual invocation is:
+
+```
+curl [API endpoint][request] -H [access_token] [extra curl args].
+```
+
+The image must be of the form `namespace/repository:[hash_or_tag (default latest)]`.
+
+The actual request parameters depend on the request type:
+
+  * For PostgREST: `/table?[postgrest request]` or empty to get the OpenAPI spec for this image.
+    For a reference on how to perform Postgrest requests, see http://postgrest.org/en/latest/api.html.
+  * For the Splitfile executor: a JSON array to be POSTed to the executor, e.g.
+    `'{"command": "FROM some/repo IMPORT some_table AS alias", "tag": "new_tag"}'`.
+
+`--curl-args` allows to pass extra arguments to curl. Note that every argument must be prefixed
+with `--curl-args`, e.g. `--curl-args --cacert --curl-args /path/to/ca.pem`.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`-t, --request-type [postgrest|splitfile]`**: 
+  * **`-c, --curl-args TEXT`**: Extra arguments to be passed to curl
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0005_cloud-readme.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0005_cloud-readme.mdx
new file mode 100644
index 00000000..4d800dc6
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0005_cloud-readme.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "cloud-readme", title: "sgr cloud readme", sidebarTitle: "cloud readme", description: "Upload or a README to a Splitgraph repository."};
+
+```sgr cloud readme [OPTIONS] REPOSITORY README```
+
+Upload or a README to a Splitgraph repository.
+
+The repository must have already been pushed. The README must be a file in Markdown format.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0006_cloud-description.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0006_cloud-description.mdx
new file mode 100644
index 00000000..003c953f
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0006_cloud-description.mdx
@@ -0,0 +1,11 @@
+export const meta = {id: "cloud-description", title: "sgr cloud description", sidebarTitle: "cloud description", description: "Upload a description to a Splitgraph repository."};
+
+```sgr cloud description [OPTIONS] REPOSITORY DESCRIPTION```
+
+Upload a description to a Splitgraph repository.
+
+The repository must have already been pushed. The description should be plain text, 160 characters or shorter.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0007_cloud-metadata.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0007_cloud-metadata.mdx
new file mode 100644
index 00000000..6f203833
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0007_cloud-metadata.mdx
@@ -0,0 +1,25 @@
+export const meta = {id: "cloud-metadata", title: "sgr cloud metadata", sidebarTitle: "cloud metadata", description: "Upload a metadata file to a Splitgraph repository."};
+
+```sgr cloud metadata [OPTIONS] REPOSITORY [METADATA_FILE]```
+
+Upload a metadata file to a Splitgraph repository.
+
+This can manipulate the repository's short description, README and topics.
+
+The metadata file must be a YAML file with the keys `readme`, `description` and `topics`. Omitting a key doesn't delete the value.
+
+For example:
+
+
+```
+readme: dataset-readme.md
+description: Dataset description (160 characters max).
+topics:
+  - topic_1
+  - topic_2
+```
+    
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0008_cloud-search.mdx b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0008_cloud-search.mdx
new file mode 100644
index 00000000..c23c31f4
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/0008_cloud-search.mdx
@@ -0,0 +1,12 @@
+export const meta = {id: "cloud-search", title: "sgr cloud search", sidebarTitle: "cloud search", description: "Search for a repository on the Splitgraph registry."};
+
+```sgr cloud search [OPTIONS] QUERY```
+
+Search for a repository on the Splitgraph registry.
+
+For more advanced search, including filtering by topics, go to the registry's website itself.
+
+### Options
+
+  * **`--remote TEXT`**: Name of the remote registry to use.
+  * **`--limit INTEGER RANGE`**: Number of results to return
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/metadata.json
new file mode 100644
index 00000000..25ba655e
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/0007_splitgraph-cloud/metadata.json
@@ -0,0 +1 @@
+{"title": "Splitgraph Cloud"}
diff --git a/content/docs/9000_sgr/9000_versions/v0.2.5/metadata.json b/content/docs/9000_sgr/9000_versions/v0.2.5/metadata.json
new file mode 100644
index 00000000..2daefc15
--- /dev/null
+++ b/content/docs/9000_sgr/9000_versions/v0.2.5/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.5",
+  "updated_at": "2021-01-26T14:47:50.013Z",
+  "release": {
+    "id": 36852954,
+    "tag_name": "v0.2.5",
+    "target_commitish": "503e1ef49355352e46a7407c2a75ef40fda887f7",
+    "created_at": "2021-01-25T11:24:56Z",
+    "published_at": "2021-01-25T11:57:52Z",
+    "assets": [
+      {
+        "id": 31148972,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/31148972",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2021-01-25T11:52:07Z",
+        "updated_at": "2021-01-25T11:52:07Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.5/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/docs/9000_sgr/metadata.json b/content/docs/9000_sgr/metadata.json
index 3c40be44..b94adfa3 100644
--- a/content/docs/9000_sgr/metadata.json
+++ b/content/docs/9000_sgr/metadata.json
@@ -1,21 +1,21 @@
 {
   "title": "sgr CLI",
-  "updated_at": "2020-08-19T12:21:53.461Z",
+  "updated_at": "2021-01-26T14:48:02.498Z",
   "release": {
-    "id": 29809771,
-    "tag_name": "v0.2.0",
-    "target_commitish": "fc2111a585b03d322ce4207e385470d6746e4292",
-    "created_at": "2020-08-18T10:20:14Z",
-    "published_at": "2020-08-18T11:16:01Z",
+    "id": 36852954,
+    "tag_name": "v0.2.5",
+    "target_commitish": "503e1ef49355352e46a7407c2a75ef40fda887f7",
+    "created_at": "2021-01-25T11:24:56Z",
+    "published_at": "2021-01-25T11:57:52Z",
     "assets": [
       {
-        "id": 24041264,
-        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/24041264",
+        "id": 31148972,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/31148972",
         "name": "sgr-docs-bin.tar.gz",
         "label": "",
-        "created_at": "2020-08-18T11:03:51Z",
-        "updated_at": "2020-08-18T11:03:52Z",
-        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.0/sgr-docs-bin.tar.gz"
+        "created_at": "2021-01-25T11:52:07Z",
+        "updated_at": "2021-01-25T11:52:07Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.5/sgr-docs-bin.tar.gz"
       }
     ]
   },
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.0/metadata.json b/content/docs/9500_python-api/9000_versions/v0.2.0/metadata.json
index c7542b1d..3701e1ce 100644
--- a/content/docs/9500_python-api/9000_versions/v0.2.0/metadata.json
+++ b/content/docs/9500_python-api/9000_versions/v0.2.0/metadata.json
@@ -1,11 +1,11 @@
 {
   "title": "v0.2.0",
-  "updated_at": "2020-08-19T12:21:48.935Z",
+  "updated_at": "2021-01-26T14:48:01.970Z",
   "release": {
     "id": 29809771,
     "tag_name": "v0.2.0",
     "target_commitish": "fc2111a585b03d322ce4207e385470d6746e4292",
-    "created_at": "2020-08-18T10:20:14Z",
+    "created_at": "2020-08-25T12:21:08Z",
     "published_at": "2020-08-18T11:16:01Z",
     "assets": [
       {
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.1/metadata.json b/content/docs/9500_python-api/9000_versions/v0.2.1/metadata.json
new file mode 100644
index 00000000..2e156443
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.1/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.1",
+  "updated_at": "2021-01-26T14:47:59.339Z",
+  "release": {
+    "id": 30568807,
+    "tag_name": "v0.2.1",
+    "target_commitish": "492b8412619eb54ab198ac597beef528a4c54f96",
+    "created_at": "2020-09-02T08:23:13Z",
+    "published_at": "2020-09-02T09:00:42Z",
+    "assets": [
+      {
+        "id": 24722695,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/24722695",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-09-02T08:47:33Z",
+        "updated_at": "2020-09-02T08:47:34Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.1/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.config.mdx b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.config.mdx
new file mode 100644
index 00000000..764a3f80
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.config.mdx
@@ -0,0 +1,337 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.config package",
+  id: "splitgraph.config package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigargument_config-module">splitgraph.config.argument_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigconfig-module">splitgraph.config.config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigconfig_file_config-module">splitgraph.config.config_file_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigdefault_config-module">splitgraph.config.default_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigenvironment_config-module">splitgraph.config.environment_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigkeys-module">splitgraph.config.keys module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigsystem_config-module">splitgraph.config.system_config module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.config">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.config" title="Permalink to this headline">¶</a></h2>
+<p>The CONFIG object is created and exported once __at import <a href="#id1"><span className="problematic" id="id2">time__</span></a>
+Calling CONFIG[“KEY”] directly should be sufficient in most cases,
+except when a config value has changed since importing CONFIG.
+In that case, create_config_dict() can provide an updated config dict</p>
+<p>Priority (highest to lowest):</p>
+<blockquote>
+<div><ol className="arabic simple">
+<li><p>Command line argument values</p></li>
+<li><p>Environment variable values</p></li>
+<li><p>Config file values in [defaults] section</p></li>
+<li><p>DEFAULTS (see keys.py)</p></li>
+</ol>
+</div></blockquote>
+</div><div className="section" id="splitgraph-config-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.config.argument_config">
+<span id="splitgraph-config-argument-config-module"></span><h2 id="splitgraphconfigargument_config-module">splitgraph.config.argument_config module<a className="headerlink" href="#module-splitgraph.config.argument_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.argument_config.get_arg_tuples">
+<code className="sig-prename descclassname">splitgraph.config.argument_config.</code><code className="sig-name descname">get_arg_tuples</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.argument_config.get_arg_tuples" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the raw (argN, argN+1) tuples from sys.argv</p>
+<p>We could also use click to parse the flags ahead of time, and then pass
+the parsed flag object into SystemConfigGetters. But this way, we avoid
+having to pass down variables from click just to get config values.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.argument_config.get_argument_config_value">
+<code className="sig-prename descclassname">splitgraph.config.argument_config.</code><code className="sig-name descname">get_argument_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.argument_config.get_argument_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get get the value of an argument, where value is the argument
+immediately following the argument matching a key in ARG_KEYS, e.g.:</p>
+<blockquote>
+<div><p>SYS_ARGS = [“–namespace”, “foo”]
+–> return “foo”</p>
+</div></blockquote>
+<p>Otherwise, return default_return</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.config">
+<span id="splitgraph-config-config-module"></span><h2 id="splitgraphconfigconfig-module">splitgraph.config.config module<a className="headerlink" href="#module-splitgraph.config.config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.config.chain_getters">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">chain_getters</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">getters</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Callable<span className="p">[</span><span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.chain_getters" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.create_config_dict">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">create_config_dict</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.create_config_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create and return a dict of all known config values</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_all_in_section">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_section" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get all subsections from a config (e.g. config[“mount_handlers”])</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_all_in_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_subsection" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_from_section">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_from_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_from_section" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_from_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_from_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_from_subsection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a singleton variable from a subsection of the config,
+e.g. config[“remotes”][“data.splitgraph.com”][“SG_ENGINE_HOST”]</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_singleton">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_singleton</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_singleton" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a singleton (not a section) variable from the config.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.lazy_get_config_value">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">lazy_get_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.lazy_get_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the config value for a key in the following precedence
+Otherwise return default_return</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.patch_config">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">patch_config</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">patch</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.patch_config" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recursively updates a nested configuration dictionary:</p>
+<dl className="simple">
+<dt>patch_config(</dt><dd><dl className="simple">
+<dt>&#38;lbrace;“key_1”: “value_1”,</dt><dd><p>“dict_1”: &#38;lbrace;“key_1”: “value_1”&#38;rbrace;&#38;rbrace;,</p>
+</dd>
+<dt>&#38;lbrace;“key_1”: “value_2”,</dt><dd><p>“dict_1”: &#38;lbrace;“key_2”: “value_2”&#38;rbrace;&#38;rbrace;) ==         &#38;lbrace;“key_1”: “value_2”,
+“dict_1”: &#38;lbrace;“key_1”: “value_1”, “key_2”: “value_2”&#38;rbrace;&#38;rbrace;</p>
+</dd>
+</dl>
+</dd>
+</dl>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>config</strong> – Config dictionary</p></li>
+<li><p><strong>patch</strong> – Dictionary with the path</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>New patched dictionary</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.set_in_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">set_in_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">value</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.config.config.set_in_subsection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set a singleton variable in a subsection of the config,
+e.g. config[“remotes”][“data.splitgraph.com”][“SG_ENGINE_HOST”]</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_arguments">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_arguments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_arguments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading sys.argv
+and overwriting any keys.</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_env_vars">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_env_vars</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_env_vars" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading os.environ
+and overwriting any keys.</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_file">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">sg_config_file</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading sg_config_file
+and overwriting any keys according to the rules in config_file_config</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.config_file_config">
+<span id="splitgraph-config-config-file-config-module"></span><h2 id="splitgraphconfigconfig_file_config-module">splitgraph.config.config_file_config module<a className="headerlink" href="#module-splitgraph.config.config_file_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.accumulate_lists">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">accumulate_lists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.accumulate_lists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Transform a <cite>config_dict</cite> to “accumulate” objects “nested” via key name</p>
+<p>Because  ConfigParser does not support nesting, we implement our own
+syntax via the key names of sections. The ‘:’ character can be used in
+section names to specify the left and right key. Example:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="o">.</span><span className="n">ini</span> <span className="n">config</span>             <span className="n">new</span> <span className="n">config_dict</span>
+
+                  <span className="o">-----></span>
+                    <span className="o">|</span>
+<span className="p">[</span><span className="n">remote</span><span className="p">:</span> <span className="n">remote1</span><span className="p">]</span>   <span className="o">|</span>   <span className="p">&#38;lbrace;</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">foo</span>      <span className="o">|</span>       <span className="o">**</span><span className="n">rest_of_config_dict</span><span className="p">,</span>
+                    <span className="o">|</span>       <span className="s2">"remotes"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+<span className="p">[</span><span className="n">origin</span><span className="p">:</span> <span className="n">origin1</span><span className="p">]</span>   <span className="o">|</span>           <span className="s2">"remote1"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">bar</span>      <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"foo"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;</span>
+<span className="p">[</span><span className="n">origin</span><span className="p">:</span> <span className="n">origin2</span><span className="p">]</span>   <span className="o">|</span>       <span className="p">&#38;rbrace;,</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">bax</span>      <span className="o">|</span>       <span className="s2">"origins"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>           <span className="s2">"origin1"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"bar"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;,</span>
+                    <span className="o">|</span>           <span className="s2">"origin2"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"bax"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>       <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>   <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>
+                  <span className="o">-----></span>
+</pre></div>
+</div>
+<p>:return a new, updated copy of <cite>config_dict</cite></p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.get_config_dict_from_config_file">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">get_config_dict_from_config_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sg_file</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.get_config_dict_from_config_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a dict from ConfigParser, apply transformations to it.</p>
+<p>Return parsed and transformed <cite>config_dict</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.get_config_dict_from_file">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">get_config_dict_from_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sg_file</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.get_config_dict_from_file" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.hoist_section">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">hoist_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'defaults'</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.hoist_section" title="Permalink to this definition">¶</a></dt>
+<dd><p>If a section exists called &lt;hoist_section>, hoist it to the top level
+This is useful for overriding default configs from within a config file</p>
+<p>Transform <cite>config_dict</cite> to “hoist” any config values from a section
+into the top level (thus, overriding environment variables),
+when the name of the section matches <cite>hoist_section</cite>.</p>
+<p>Return a new, updated copy of <cite>config_dict</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.transform_config_dict">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">transform_config_dict</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.transform_config_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply transformations to the raw ConfigParser.config object</p>
+<blockquote>
+<div><ol className="arabic simple">
+<li><p>hoist_section</p></li>
+<li><p>accumulate_lists</p></li>
+</ol>
+</div></blockquote>
+<p>Return the a new, updated copy of <cite>config_dict</cite>.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.default_config">
+<span id="splitgraph-config-default-config-module"></span><h2 id="splitgraphconfigdefault_config-module">splitgraph.config.default_config module<a className="headerlink" href="#module-splitgraph.config.default_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.default_config.get_default_config_value">
+<code className="sig-prename descclassname">splitgraph.config.default_config.</code><code className="sig-name descname">get_default_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.config.default_config.get_default_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the hard-coded default value of a config key.
+Otherwise return default_return.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.environment_config">
+<span id="splitgraph-config-environment-config-module"></span><h2 id="splitgraphconfigenvironment_config-module">splitgraph.config.environment_config module<a className="headerlink" href="#module-splitgraph.config.environment_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.environment_config.get_environment_config_value">
+<code className="sig-prename descclassname">splitgraph.config.environment_config.</code><code className="sig-name descname">get_environment_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.environment_config.get_environment_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the environment variable value of the environment variable matching key.
+Otherwise return default_return.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.keys">
+<span id="splitgraph-config-keys-module"></span><h2 id="splitgraphconfigkeys-module">splitgraph.config.keys module<a className="headerlink" href="#module-splitgraph.config.keys" title="Permalink to this headline">¶</a></h2>
+<dl className="py data">
+<dt id="splitgraph.config.keys.SENSITIVE_KEY_SUFFIXES">
+<code className="sig-prename descclassname">splitgraph.config.keys.</code><code className="sig-name descname">SENSITIVE_KEY_SUFFIXES</code><em className="property"> = ['_PWD', '_TOKEN']</em><a className="headerlink" href="#splitgraph.config.keys.SENSITIVE_KEY_SUFFIXES" title="Permalink to this definition">¶</a></dt>
+<dd><p>Warning: Every key in DEFAULTS must have a key in ARGUMENT_KEY_MAP
+If you add/remove keys from DEFAULTS, make sure to do so here too.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.system_config">
+<span id="splitgraph-config-system-config-module"></span><h2 id="splitgraphconfigsystem_config-module">splitgraph.config.system_config module<a className="headerlink" href="#module-splitgraph.config.system_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.system_config.file_exists">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">file_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">_dir</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">filename</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.config.system_config.file_exists" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_config_file">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_config_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_config_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the location of an existing SG_CONFIG_FILE on the system with
+a valid name. Do not attempt to parse the config file, just return
+its location.</p>
+<p>Otherwise, return default_return</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_explicit_config_file_dirs">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_explicit_config_file_dirs</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_explicit_config_file_dirs" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get any explicitly defined config file directories,
+which are directories where we should search for files from
+VALID_CONFIG_FILE_NAMES.</p>
+<p>This list is defined similar to $PATH, as a colon (:) delimited
+string, either in:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-dirs</p></li>
+<li><p>or environment key SG_CONFIG_DIRS</p></li>
+</ul>
+</div></blockquote>
+<p>Or a single directory defined in either</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-dir</p></li>
+<li><p>environment key SG_CONFIG_DIR</p></li>
+</ul>
+</div></blockquote>
+<p>If both plural and single are defined, join them together.</p>
+<p>Return a list of valid paths that are set, or an empty list.</p>
+<p>Print a warning if any paths to not exist.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_explicit_config_file_location">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_explicit_config_file_location</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_explicit_config_file_location" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the explicitly defined location of config file, if defined.</p>
+<p>The location will either be defined in:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-file</p></li>
+<li><p>or environment key SG_CONFIG_FILE</p></li>
+</ul>
+</div></blockquote>
+<p>In keeping with assumptions about priority, argument flag has
+higher priority than environment value.</p>
+<p>If the location is set, and points to an existing file, return location.</p>
+<p>Otherwise return None</p>
+<p>Print a warning if location is set but points to non-existing file.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_system_config_value">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_system_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_system_config_value" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.is_file">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">is_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">filename</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.config.system_config.is_file" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.core.mdx b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.core.mdx
new file mode 100644
index 00000000..faef8b81
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.core.mdx
@@ -0,0 +1,1066 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.core package",
+  id: "splitgraph.core package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreengine-module">splitgraph.core.engine module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreimage-module">splitgraph.core.image module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreobject_manager-module">splitgraph.core.object_manager module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreregistry-module">splitgraph.core.registry module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcorerepository-module">splitgraph.core.repository module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoretable-module">splitgraph.core.table module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.core">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.core" title="Permalink to this headline">¶</a></h2>
+<p>Core Splitgraph functionality: versioning and sharing tables.</p>
+<p>The main point of interaction with the Splitgraph API is a <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.repository.Repository</span></code></a> object
+representing a local or a remote Splitgraph repository. Repositories can be created using one of the
+following methods:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>Directly by invoking <cite>Repository(namespace, name, engine)</cite> where <cite>engine</cite> is the engine that the repository
+belongs to (that can be gotten with <cite>get_engine(engine_name)</cite>. If the created repository doesn’t actually exist
+on the engine, it must first be initialized with <cite>repository.init()</cite>.</p></li>
+<li><p>By using <a className="reference internal" href="#splitgraph.core.engine.lookup_repository" title="splitgraph.core.engine.lookup_repository"><code className="xref py py-func docutils literal notranslate"><span className="pre">splitgraph.core.engine.lookup_repository()</span></code></a> which will search for the repository on the current
+lookup path.</p></li>
+</ul>
+</div></blockquote>
+</div><div className="section" id="splitgraph-core-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.core.engine">
+<span id="splitgraph-core-engine-module"></span><h2 id="splitgraphcoreengine-module">splitgraph.core.engine module<a className="headerlink" href="#module-splitgraph.core.engine" title="Permalink to this headline">¶</a></h2>
+<p>Routines for managing Splitgraph engines, including looking up repositories and managing objects.</p>
+<dl className="py function">
+<dt id="splitgraph.core.engine.get_current_repositories">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">get_current_repositories</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Repository<span className="p">, </span>Optional<span className="p">[</span>Image<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.engine.get_current_repositories" title="Permalink to this definition">¶</a></dt>
+<dd><p>Lists all repositories currently in the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of (Repository object, current HEAD image)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.init_engine">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">init_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">skip_object_handling</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.engine.init_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes the engine by:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>performing any required engine-custom initialization</p></li>
+<li><p>creating the metadata tables</p></li>
+</ul>
+</div></blockquote>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>skip_object_handling</strong> – If True, skips installing routines related to
+object handling and checkouts (like audit triggers and CStore management).</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.lookup_repository">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">lookup_repository</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">include_local</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Repository<a className="headerlink" href="#splitgraph.core.engine.lookup_repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Queries the SG engines on the lookup path to locate one hosting the given repository.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>name</strong> – Repository name</p></li>
+<li><p><strong>include_local</strong> – If True, also queries the local engine</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Local or remote Repository object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.repository_exists">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">repository_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.engine.repository_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks if a repository exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>repository</strong> – Repository object</p>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.image">
+<span id="splitgraph-core-image-module"></span><h2 id="splitgraphcoreimage-module">splitgraph.core.image module<a className="headerlink" href="#module-splitgraph.core.image" title="Permalink to this headline">¶</a></h2>
+<p>Image representation and provenance</p>
+<dl className="py class">
+<dt id="splitgraph.core.image.Image">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">Image</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">parent_id</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">created</span><span className="p">:</span> <span className="n">datetime.datetime</span></em>, <em className="sig-param"><span className="n">comment</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.image.Image" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">tuple</span></code></p>
+<p>Represents a Splitgraph image. Should’t be created directly, use Image-loading methods in the
+<a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.repository.Repository</span></code></a> class instead.</p>
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.checkout">
+<code className="sig-name descname">checkout</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">force</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">layered</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.checkout" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks the image out, changing the current HEAD pointer. Raises an error
+if there are pending changes to its checkout.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>force</strong> – Discards all pending changes to the schema.</p></li>
+<li><p><strong>layered</strong> – If True, uses layered querying to check out the image (doesn’t materialize tables
+inside of it).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.comment">
+<em className="property">property </em><code className="sig-name descname">comment</code><a className="headerlink" href="#splitgraph.core.image.Image.comment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 3</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.created">
+<em className="property">property </em><code className="sig-name descname">created</code><a className="headerlink" href="#splitgraph.core.image.Image.created" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 2</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.delete_tag">
+<code className="sig-name descname">delete_tag</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tag</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.delete_tag" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes a tag from an image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tag</strong> – Tag to delete.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.engine">
+<em className="property">property </em><code className="sig-name descname">engine</code><a className="headerlink" href="#splitgraph.core.image.Image.engine" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_log">
+<code className="sig-name descname">get_log</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_log" title="Permalink to this definition">¶</a></dt>
+<dd><p>Repeatedly gets the parent of a given image until it reaches the bottom.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_parent_children">
+<code className="sig-name descname">get_parent_children</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Tuple<span className="p">[</span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_parent_children" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets the parent and a list of children of a given image.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.image.Image.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the image’s objects (including those that might be
+shared with other images).</p>
+<p>This is calculated from the metadata, the on-disk footprint might be smaller if not all of image’s
+objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the image in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_table">
+<code className="sig-name descname">get_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.table.Table" title="splitgraph.core.table.Table">splitgraph.core.table.Table</a><a className="headerlink" href="#splitgraph.core.image.Image.get_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a Table object representing a version of a given table.
+Contains a list of objects that the table is linked to and the table’s schema.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>table_name</strong> – Name of the table</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Table object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_tables">
+<code className="sig-name descname">get_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets the names of all tables inside of an image.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_tags">
+<code className="sig-name descname">get_tags</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.image.Image.get_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Lists all tags that this image has.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.image_hash">
+<em className="property">property </em><code className="sig-name descname">image_hash</code><a className="headerlink" href="#splitgraph.core.image.Image.image_hash" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 0</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.object_engine">
+<em className="property">property </em><code className="sig-name descname">object_engine</code><a className="headerlink" href="#splitgraph.core.image.Image.object_engine" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.parent_id">
+<em className="property">property </em><code className="sig-name descname">parent_id</code><a className="headerlink" href="#splitgraph.core.image.Image.parent_id" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 1</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.provenance">
+<code className="sig-name descname">provenance</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reverse</span><span className="o">=</span><span className="default_value">False</span></em>, <em className="sig-param"><span className="n">engine</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.provenance" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inspects the image’s parent chain to come up with a set of repositories and their hashes
+that it was created from.</p>
+<p>If <cite>reverse</cite> is True, returns a list of images that were created _from_ this image. If
+this image is on a remote repository, <cite>engine</cite> can be passed in to override the engine
+used for the lookup of dependents.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>List of (repository, image_hash)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.provenance_data">
+<em className="property">property </em><code className="sig-name descname">provenance_data</code><a className="headerlink" href="#splitgraph.core.image.Image.provenance_data" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 4</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.query_schema">
+<code className="sig-name descname">query_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.query_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a temporary schema with tables in this image mounted as foreign tables that can be accessed via
+read-only layered querying. On exit from the context manager, the schema is discarded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>The name of the schema the image is located in.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.repository">
+<em className="property">property </em><code className="sig-name descname">repository</code><a className="headerlink" href="#splitgraph.core.image.Image.repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 5</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.set_provenance">
+<code className="sig-name descname">set_provenance</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.set_provenance" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets the image’s provenance. Internal function called by the Splitfile interpreter, shouldn’t
+be called directly as it changes the image after it’s been created.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>provenance_data</strong> – List of parsed Splitfile commands and their data.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.tag">
+<code className="sig-name descname">tag</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tag</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.tag" title="Permalink to this definition">¶</a></dt>
+<dd><p>Tags a given image. All tags are unique inside of a repository. If a tag already exists, it’s removed
+from the previous image and given to the new image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tag</strong> – Tag to set. ‘latest’ and ‘HEAD’ are reserved tags.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.to_splitfile">
+<code className="sig-name descname">to_splitfile</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">ignore_irreproducible</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.to_splitfile" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreate the Splitfile that can be used to reconstruct this image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>ignore_irreproducible</strong> – If True, ignore commands from irreproducible Splitfile lines
+(like MOUNT or custom commands) and instead emit a comment (this results in an invalid Splitfile).</p></li>
+<li><p><strong>source_replacement</strong> – A dictionary of repositories and image hashes/tags specifying how to replace the
+dependencies of this Splitfile (table imports and FROM commands).</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of Splitfile commands that can be fed back into the executor.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.image.getrandbits">
+<code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.core.image.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.image.reconstruct_splitfile">
+<code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">reconstruct_splitfile</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">ignore_irreproducible</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.reconstruct_splitfile" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreate the Splitfile that can be used to reconstruct an image.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.object_manager">
+<span id="splitgraph-core-object-manager-module"></span><h2 id="splitgraphcoreobject_manager-module">splitgraph.core.object_manager module<a className="headerlink" href="#module-splitgraph.core.object_manager" title="Permalink to this headline">¶</a></h2>
+<p>Functions related to creating, deleting and keeping track of physical Splitgraph objects.</p>
+<dl className="py class">
+<dt id="splitgraph.core.object_manager.ObjectManager">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.object_manager.</code><code className="sig-name descname">ObjectManager</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">metadata_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>PostgresEngine<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.fragment_manager.FragmentManager</span></code></p>
+<p>Brings the multiple manager classes together and manages the object cache (downloading and uploading
+objects as required in order to fulfill certain queries)</p>
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.cleanup">
+<code className="sig-name descname">cleanup</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.cleanup" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes all objects in the object_tree not required by any current repository, including their dependencies and
+their remote locations. Also deletes all objects not registered in the object_tree.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">ObjectManager</a><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects_to_fetch</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">object_locations</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Fetches the required objects from the remote and stores them locally.
+Does nothing for objects that already exist.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>source</strong> – Remote ObjectManager. If None, will only try to download objects from the external location.</p></li>
+<li><p><strong>objects_to_fetch</strong> – List of object IDs to download.</p></li>
+<li><p><strong>object_locations</strong> – List of custom object locations, encoded as tuples (object_id, object_url, protocol).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.ensure_objects">
+<code className="sig-name descname">ensure_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Table<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">defer_release</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">tracer</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>splitgraph.core.common.Tracer<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">upstream_manager</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">ObjectManager</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Tuple<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>splitgraph.core.common.CallbackList<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.ensure_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Resolves the objects needed to materialize a given table and makes sure they are in the local
+splitgraph_meta schema.</p>
+<p>Whilst inside this manager, the objects are guaranteed to exist. On exit from it, the objects are marked as
+unneeded and can be garbage collected.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table</strong> – Table to materialize</p></li>
+<li><p><strong>objects</strong> – List of objects to download: one of table or objects must be specified.</p></li>
+<li><p><strong>quals</strong> – Optional list of qualifiers to be passed to the fragment engine. Fragments that definitely do
+not match these qualifiers will be dropped. See the docstring for <cite>filter_fragments</cite> for the format.</p></li>
+<li><p><strong>defer_release</strong> – If True, won’t release the objects on exit.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If defer_release is True: List of table fragments and a callback that the caller must call
+when the objects are no longer needed. If defer_release is False: just the list of table fragments.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_cache_occupancy">
+<code className="sig-name descname">get_cache_occupancy</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_cache_occupancy" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Space occupied by objects cached from external locations, in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_downloaded_objects">
+<code className="sig-name descname">get_downloaded_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">limit_to</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_downloaded_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets a list of objects currently in the Splitgraph cache (i.e. not only existing externally.)</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>limit_to</strong> – If specified, only the objects in this list will be returned.</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Set of object IDs.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_total_object_size">
+<code className="sig-name descname">get_total_object_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_total_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Space occupied by all objects on the engine, in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.make_objects_external">
+<code className="sig-name descname">make_objects_external</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.make_objects_external" title="Permalink to this definition">¶</a></dt>
+<dd><p>Uploads local objects to an external location and marks them as being cached locally (thus making it possible
+to evict or swap them out).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – Object IDs to upload. Will do nothing for objects that already exist externally.</p></li>
+<li><p><strong>handler</strong> – Object handler</p></li>
+<li><p><strong>handler_params</strong> – Extra handler parameters</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.run_eviction">
+<code className="sig-name descname">run_eviction</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">keep_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">required_space</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.run_eviction" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete enough objects with zero reference count (only those, since we guarantee that whilst refcount is >0,
+the object stays alive) to free at least <cite>required_space</cite> in the cache.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>keep_objects</strong> – List of objects (besides those with nonzero refcount) that can’t be deleted.</p></li>
+<li><p><strong>required_space</strong> – Space, in bytes, to free. If the routine can’t free at least this much space,
+it shall raise an exception. If None, removes all eligible objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">target</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a></span></em>, <em className="sig-param"><span className="n">objects_to_push</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Uploads physical objects to the remote or some other external location.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>target</strong> – Target ObjectManager</p></li>
+<li><p><strong>objects_to_push</strong> – List of object IDs to upload.</p></li>
+<li><p><strong>handler</strong> – Name of the handler to use to upload objects. Use <cite>DB</cite> to push them to the remote, <cite>FILE</cite>
+to store them in a directory that can be accessed from the client and <cite>HTTP</cite> to upload them to HTTP.</p></li>
+<li><p><strong>handler_params</strong> – For <cite>HTTP</cite>, a dictionary <cite>&#38;lbrace;“username”: username, “password”, password&#38;rbrace;</cite>. For <cite>FILE</cite>,
+a dictionary <cite>&#38;lbrace;“path”: path&#38;rbrace;</cite> specifying the directory where the objects shall be saved.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of (object_id, url) that specifies all objects were uploaded (skipping objects that
+already exist on the remote).</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.registry">
+<span id="splitgraph-core-registry-module"></span><h2 id="splitgraphcoreregistry-module">splitgraph.core.registry module<a className="headerlink" href="#module-splitgraph.core.registry" title="Permalink to this headline">¶</a></h2>
+<p>Functions for communicating with the remote Splitgraph catalog</p>
+<dl className="py function">
+<dt id="splitgraph.core.registry.get_info_key">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">get_info_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.registry.get_info_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets a configuration key from the remote registry, used to notify the client of the registry’s capabilities.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – Engine</p></li>
+<li><p><strong>key</strong> – Key to get</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.registry.set_info_key">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">set_info_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">value</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bool<span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.registry.set_info_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets a configuration value on the remote registry.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – Engine</p></li>
+<li><p><strong>key</strong> – Key to set</p></li>
+<li><p><strong>value</strong> – New value for the key</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.registry.setup_registry_mode">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">setup_registry_mode</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.registry.setup_registry_mode" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set up access policies/RLS:</p>
+<ul className="simple">
+<li><p>Normal users aren’t allowed to create tables/schemata (can’t do checkouts inside of a registry or
+upload SG objects directly to it)</p></li>
+<li><p>Normal users can’t access the splitgraph_meta schema directly: they’re only supposed to be able to
+talk to it via stored procedures in splitgraph_api. Those procedures are set up with SECURITY INVOKER
+(run with those users’ credentials) and what they can access is further restricted by RLS:</p>
+<ul>
+<li><p>images/tables/tags meta tables: can only create/update/delete records where the namespace = user ID</p></li>
+<li><p>objects/object_location tables: same. An object (piece of data) becomes owned by the user that creates
+it and still remains so even if someone else’s image starts using it. Hence, the original owner can delete
+or change it (since they control the external location they’ve uploaded it to anyway).</p></li>
+</ul>
+</li>
+</ul>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.repository">
+<span id="splitgraph-core-repository-module"></span><h2 id="splitgraphcorerepository-module">splitgraph.core.repository module<a className="headerlink" href="#module-splitgraph.core.repository" title="Permalink to this headline">¶</a></h2>
+<p>Public API for managing images in a Splitgraph repository.</p>
+<dl className="py class">
+<dt id="splitgraph.core.repository.Repository">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">Repository</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">namespace</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_manager</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.repository.Repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Splitgraph repository API</p>
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">comment</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">snap_only</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">chunk_size</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">split_changeset</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">extra_indexes</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">in_fragment_order</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><a className="headerlink" href="#splitgraph.core.repository.Repository.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commits all pending changes to a given repository, creating a new image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>image_hash</strong> – Hash of the commit. Chosen by random if unspecified.</p></li>
+<li><p><strong>comment</strong> – Optional comment to add to the commit.</p></li>
+<li><p><strong>snap_only</strong> – If True, will store the table as a full snapshot instead of delta compression</p></li>
+<li><p><strong>chunk_size</strong> – For tables that are stored as snapshots (new tables and where <cite>snap_only</cite> has been passed,
+the table will be split into fragments of this many rows.</p></li>
+<li><p><strong>split_changeset</strong> – If True, splits the changeset into multiple fragments based on
+the PK regions spanned by the current table fragments. For example, if the original table
+consists of 2 fragments, first spanning rows 1-10000, second spanning rows 10001-20000 and the
+change alters rows 1, 10001 and inserts a row with PK 20001, this will record the change as
+3 fragments: one inheriting from the first original fragment, one inheriting from the second
+and a brand new fragment. This increases the number of fragments in total but means that fewer rows
+will need to be scanned to satisfy a query.
+If False, the changeset will be stored as a single fragment inheriting from the last fragment in the
+table.</p></li>
+<li><p><strong>extra_indexes</strong> – Dictionary of &#38;lbrace;table: index_type: column: index_specific_kwargs&#38;rbrace;.</p></li>
+<li><p><strong>in_fragment_order</strong> – Dictionary of &#38;lbrace;table: list of columns&#38;rbrace;. If specified, will</p></li>
+</ul>
+</dd>
+</dl>
+<p>sort the data inside each chunk by this/these key(s) for each table.
+:param overwrite: If an object already exists, will force recreate it.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>The newly created Image object.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.commit_engines">
+<code className="sig-name descname">commit_engines</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.commit_engines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the underlying transactions on both engines that the repository uses.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.delete">
+<code className="sig-name descname">delete</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">unregister</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em>, <em className="sig-param"><span className="n">uncheckout</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.delete" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discards all changes to a given repository and optionally all of its history,
+as well as deleting the Postgres schema that it might be checked out into.
+Doesn’t delete any cached physical objects.</p>
+<p>After performing this operation, this object becomes invalid and must be discarded,
+unless init() is called again.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>unregister</strong> – Whether to purge repository history/metadata</p></li>
+<li><p><strong>uncheckout</strong> – Whether to delete the actual checked out repo. This has no effect
+if the repository is backed by a registry (rather than a local engine).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.diff">
+<code className="sig-name descname">diff</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image_1</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">image_2</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>Union<span className="p">[</span>bool<span className="p">, </span>Tuple<span className="p">[</span>int<span className="p">, </span>int<span className="p">, </span>int<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Tuple<span className="p">[</span>bool<span className="p">, </span>Tuple<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.diff" title="Permalink to this definition">¶</a></dt>
+<dd><p>Compares the state of a table in different images by materializing both tables into a temporary space
+and comparing them row-to-row.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table_name</strong> – Name of the table.</p></li>
+<li><p><strong>image_1</strong> – First image hash / object. If None, uses the state of the current staging area.</p></li>
+<li><p><strong>image_2</strong> – Second image hash / object. If None, uses the state of the current staging area.</p></li>
+<li><p><strong>aggregate</strong> – If True, returns a tuple of integers denoting added, removed and updated rows between
+the two images.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If the table doesn’t exist in one of the images, returns True if it was added and False if it was
+removed. If <cite>aggregate</cite> is True, returns the aggregation of changes as specified before.
+Otherwise, returns a list of changes where each change is a tuple of
+<cite>(True for added, False for removed, row contents)</cite>.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.dump">
+<code className="sig-name descname">dump</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">exclude_object_contents</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.dump" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates an SQL dump with the metadata required for the repository and all of its objects.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>stream</strong> – Stream to dump the data into.</p></li>
+<li><p><strong>exclude_object_contents</strong> – Only dump the metadata but not the actual object contents.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.from_schema">
+<em className="property">classmethod </em><code className="sig-name descname">from_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.from_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Convert a Postgres schema name of the format <cite>namespace/repository</cite> to a Splitgraph repository object.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.from_template">
+<em className="property">classmethod </em><code className="sig-name descname">from_template</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">template</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">namespace</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.from_template" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a Repository from an existing one replacing some of its attributes.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_all_hashes_tags">
+<code className="sig-name descname">get_all_hashes_tags</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.get_all_hashes_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets all tagged images and their hashes in a given repository.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>List of (image_hash, tag)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_local_size">
+<code className="sig-name descname">get_local_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.repository.Repository.get_local_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the actual size used by this repository’s downloaded objects.</p>
+<p>This might still be double-counted if the repository shares objects
+with other repositores.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the repository in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.repository.Repository.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the repository’s data, counting objects that are used
+by multiple images only once. This is calculated from the metadata, the on-disk
+footprint might be smaller if not all of repository’s objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the repository in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.repository.Repository.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Detects if the repository has any pending changes (schema changes, table additions/deletions, content changes).</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.head">
+<em className="property">property </em><code className="sig-name descname">head</code><a className="headerlink" href="#splitgraph.core.repository.Repository.head" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the HEAD image for the repository or None if the repository isn’t checked out.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.head_strict">
+<em className="property">property </em><code className="sig-name descname">head_strict</code><a className="headerlink" href="#splitgraph.core.repository.Repository.head_strict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the HEAD image for the repository. Raise an exception if the repository
+isn’t checked out.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.import_tables">
+<code className="sig-name descname">import_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">source_tables</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">foreign_tables</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">do_checkout</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">table_queries</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>bool<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">parent_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em>, <em className="sig-param"><span className="n">skip_validation</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.core.repository.Repository.import_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a new commit in target_repository with one or more tables linked to already-existing tables.
+After this operation, the HEAD of the target repository moves to the new commit and the new tables are
+materialized.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>tables</strong> – If not empty, must be the list of the same length as <cite>source_tables</cite> specifying names to store
+them under in the target repository.</p></li>
+<li><p><strong>source_repository</strong> – Repository to import tables from.</p></li>
+<li><p><strong>source_tables</strong> – List of tables to import. If empty, imports all tables.</p></li>
+<li><p><strong>image_hash</strong> – Image hash in the source repository to import tables from.
+Uses the current source HEAD by default.</p></li>
+<li><p><strong>foreign_tables</strong> – If True, copies all source tables to create a series of new snapshots instead of
+treating them as Splitgraph-versioned tables. This is useful for adding brand new tables
+(for example, from an FDW-mounted table).</p></li>
+<li><p><strong>do_checkout</strong> – If False, doesn’t check out the newly created image.</p></li>
+<li><p><strong>target_hash</strong> – Hash of the new image that tables is recorded under. If None, gets chosen at random.</p></li>
+<li><p><strong>table_queries</strong> – If not [], it’s treated as a Boolean mask showing which entries in the <cite>tables</cite> list are
+instead SELECT SQL queries that form the target table. The queries have to be non-schema qualified and work
+only against tables in the source repository. Each target table created is the result of the respective SQL
+query. This is committed as a new snapshot.</p></li>
+<li><p><strong>parent_hash</strong> – If not None, must be the hash of the image to base the new image on.
+Existing tables from the parent image are preserved in the new image. If None, the current repository
+HEAD is used.</p></li>
+<li><p><strong>wrapper</strong> – Override the default class for the layered querying foreign data wrapper.</p></li>
+<li><p><strong>skip_validation</strong> – Don’t validate SQL used in import statements (used by the Splitfile executor that pre-formats the SQL).</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Hash that the new image was stored under.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.init">
+<code className="sig-name descname">init</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.init" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes an empty repo with an initial commit (hash 0000…)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.materialized_table">
+<code className="sig-name descname">materialized_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.materialized_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>A context manager that returns a pointer to a read-only materialized table in a given image.
+The table is deleted on exit from the context manager.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table_name</strong> – Name of the table</p></li>
+<li><p><strong>image_hash</strong> – Image hash to materialize</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>(schema, table_name) where the materialized table is located.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.pull">
+<code className="sig-name descname">pull</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.pull" title="Permalink to this definition">¶</a></dt>
+<dd><p>Synchronizes the state of the local Splitgraph repository with its upstream, optionally downloading all new
+objects created on the remote.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>download_all</strong> – If True, downloads all objects and stores them locally. Otherwise, will only download
+required objects when a table is checked out.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the local repository for existing objects.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags.</p></li>
+<li><p><strong>single_image</strong> – Limit the download to a single image hash/tag.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.push">
+<code className="sig-name descname">push</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">reupload_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.push" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inverse of <code className="docutils literal notranslate"><span className="pre">pull</span></code>: Pushes all local changes to the remote and uploads new objects.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote repository to push changes to. If not specified, the current
+upstream is used.</p></li>
+<li><p><strong>handler</strong> – Name of the handler to use to upload objects. Use <cite>DB</cite> to push them to the remote or <cite>S3</cite>
+to store them in an S3 bucket.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the remote repository for existing objects.</p></li>
+<li><p><strong>reupload_objects</strong> – If True, will reupload objects for which metadata is uploaded.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags on the remote repository.</p></li>
+<li><p><strong>handler_options</strong> – Extra options to pass to the handler. For example, see
+<a className="reference internal" href="splitgraph.hooks/#splitgraph.hooks.s3.S3ExternalObjectHandler" title="splitgraph.hooks.s3.S3ExternalObjectHandler"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.hooks.s3.S3ExternalObjectHandler</span></code></a>.</p></li>
+<li><p><strong>single_image</strong> – Limit the upload to a single image hash/tag.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.rollback_engines">
+<code className="sig-name descname">rollback_engines</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.rollback_engines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the underlying transactions on both engines that the repository uses.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">sql: Union[psycopg2.sql.Composed, str], arguments: Optional[Any] = None, return_shape: splitgraph.engine.ResultShape = &lt;ResultShape.MANY_MANY: 4></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.core.repository.Repository.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute an arbitrary SQL statement inside of this repository’s checked out schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.set_tags">
+<code className="sig-name descname">set_tags</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tags</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.set_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets tags for multiple images.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tags</strong> – List of (image_hash, tag)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.to_schema">
+<code className="sig-name descname">to_schema</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.core.repository.Repository.to_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the engine schema that this repository gets checked out into.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.uncheckout">
+<code className="sig-name descname">uncheckout</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">force</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.uncheckout" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes the schema that the repository is checked out into</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>force</strong> – Discards all pending changes to the schema.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.upstream">
+<em className="property">property </em><code className="sig-name descname">upstream</code><a className="headerlink" href="#splitgraph.core.repository.Repository.upstream" title="Permalink to this definition">¶</a></dt>
+<dd><p>The remote upstream repository that this local repository tracks.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.clone">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">clone</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">local_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.clone" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clones a remote Splitgraph repository or synchronizes remote changes with the local ones.</p>
+<p>If the target repository has no set upstream engine, the source repository becomes its upstream.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote Repository object to clone or the repository’s name. If a name is passed,
+the repository will be looked up on the current lookup path in order to find the engine the repository
+belongs to.</p></li>
+<li><p><strong>local_repository</strong> – Local repository to clone into. If None, uses the same name as the remote.</p></li>
+<li><p><strong>download_all</strong> – If True, downloads all objects and stores them locally. Otherwise, will only download required
+objects when a table is checked out.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the local repository for existing objects.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags.</p></li>
+<li><p><strong>single_image</strong> – If set, only get a single image with this hash/tag from the source.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A locally cloned Repository object.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.getrandbits">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.core.repository.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.import_table_from_remote">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">import_table_from_remote</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">remote_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">target_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.import_table_from_remote" title="Permalink to this definition">¶</a></dt>
+<dd><p>Shorthand for importing one or more tables from a yet-uncloned remote. Here, the remote image hash is required,
+as otherwise we aren’t necessarily able to determine what the remote head is.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote Repository object</p></li>
+<li><p><strong>remote_tables</strong> – List of remote tables to import</p></li>
+<li><p><strong>remote_image_hash</strong> – Image hash to import the tables from</p></li>
+<li><p><strong>target_repository</strong> – Target repository to import the tables to</p></li>
+<li><p><strong>target_tables</strong> – Target table aliases</p></li>
+<li><p><strong>target_hash</strong> – Hash of the image that’s created with the import. Default random.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.table_exists_at">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">table_exists_at</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.repository.table_exists_at" title="Permalink to this definition">¶</a></dt>
+<dd><p>Determines whether a given table exists in a Splitgraph image without checking it out. If <cite>image_hash</cite> is None,
+determines whether the table exists in the current staging area.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.table">
+<span id="splitgraph-core-table-module"></span><h2 id="splitgraphcoretable-module">splitgraph.core.table module<a className="headerlink" href="#module-splitgraph.core.table" title="Permalink to this headline">¶</a></h2>
+<p>Table metadata-related classes.</p>
+<dl className="py class">
+<dt id="splitgraph.core.table.QueryPlan">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">QueryPlan</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.table.Table" title="splitgraph.core.table.Table">splitgraph.core.table.Table</a></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.QueryPlan" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Represents the initial query plan (fragments to query) for given columns and
+qualifiers.</p>
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.core.table.Table">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">Table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em>, <em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n">Image</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_schema</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.Table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Represents a Splitgraph table in a given image. Shouldn’t be created directly, use Table-loading
+methods in the <a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.image.Image</span></code></a> class instead.</p>
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_length">
+<code className="sig-name descname">get_length</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.table.Table.get_length" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the number of rows in this table.</p>
+<p>This might be smaller than the total number of rows in all objects belonging to this
+table as some objects might overwrite each other.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Number of rows in table</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_query_plan">
+<code className="sig-name descname">get_query_plan</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">use_cache</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.table.QueryPlan" title="splitgraph.core.table.QueryPlan">splitgraph.core.table.QueryPlan</a><a className="headerlink" href="#splitgraph.core.table.Table.get_query_plan" title="Permalink to this definition">¶</a></dt>
+<dd><p>Start planning a query (preliminary steps before object downloading,
+like qualifier filtering).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>quals</strong> – Qualifiers in CNF form</p></li>
+<li><p><strong>columns</strong> – List of columns</p></li>
+<li><p><strong>use_cache</strong> – If True, will fetch the plan from the cache for the same qualifiers and columns.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>QueryPlan</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.table.Table.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the table’s objects (including those shared with other tables).</p>
+<p>This is calculated from the metadata, the on-disk footprint might be smaller if not all of table’s
+objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the table in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.materialize">
+<code className="sig-name descname">materialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">destination</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">destination_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">lq_server</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.table.Table.materialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Materializes a Splitgraph table in the target schema as a normal Postgres table, potentially downloading all
+required objects and using them to reconstruct the table.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>destination</strong> – Name of the destination table.</p></li>
+<li><p><strong>destination_schema</strong> – Name of the destination schema.</p></li>
+<li><p><strong>lq_server</strong> – If set, sets up a layered querying FDW for the table instead using this foreign server.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query">
+<code className="sig-name descname">query</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.Table.query" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it.</p>
+<p>This is a wrapper around query_lazy() that force evaluates the results which
+might mean more fragments being materialized that aren’t needed.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of dictionaries of results</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query_indirect">
+<code className="sig-name descname">query_indirect</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Tuple<span className="p">[</span>Iterator<span className="p">[</span>bytes<span className="p">]</span><span className="p">, </span>Callable<span className="p">, </span><a className="reference internal" href="#splitgraph.core.table.QueryPlan" title="splitgraph.core.table.QueryPlan">splitgraph.core.table.QueryPlan</a><span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.query_indirect" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it. Instead of
+actual results, this returns a generator of SQL queries that the caller can use
+to get the results as well as a callback that the caller has to run after they’re
+done consuming the results.</p>
+<p>In particular, the query generator will prefer returning direct queries to
+Splitgraph objects and only when those are exhausted will it start materializing
+delta-compressed fragments.</p>
+<p>This is an advanced method: you probably want to call table.query().</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Generator of queries (bytes), a callback and a query plan object (containing stats
+that are fully populated after the callback has been called to end the query).</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query_lazy">
+<code className="sig-name descname">query_lazy</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Iterator<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.query_lazy" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Generator of dictionaries of results.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.reindex">
+<code className="sig-name descname">reindex</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">extra_indexes</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">raise_on_patch_objects</span><span className="o">=</span><span className="default_value">True</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.reindex" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run extra indexes on all objects in this table and update their metadata.
+This only works on objects that don’t have any deletions or upserts (have a deletion hash of 000000…).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>extra_indexes</strong> – Dictionary of &#38;lbrace;index_type: column: index_specific_kwargs&#38;rbrace;.</p></li>
+<li><p><strong>raise_on_patch_objects</strong> – If True, will raise an exception if any objects in the table
+overwrite any other objects. If False, will log a warning but will reindex all non-patch objects.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:returns List of objects that were reindexed.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.table.create_foreign_table">
+<code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">create_foreign_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">internal_table_name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.create_foreign_table" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.table.merge_index_data">
+<code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">merge_index_data</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">current_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">new_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.merge_index_data" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.engine.mdx b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.engine.mdx
new file mode 100644
index 00000000..c829cda8
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.engine.mdx
@@ -0,0 +1,553 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.engine package",
+  id: "splitgraph.engine package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#subpackages">Subpackages</a></li></ol></nav><div className="section" id="module-splitgraph.engine">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.engine" title="Permalink to this headline">¶</a></h2>
+<p>Defines the interface for a Splitgraph engine (a backing database), including running basic SQL commands,
+tracking tables for changes and uploading/downloading tables to other remote engines.</p>
+<p>By default, Splitgraph is backed by Postgres: see <a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres" title="splitgraph.engine.postgres"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.engine.postgres</span></code></a> for an example of how to
+implement a different engine.</p>
+<dl className="py class">
+<dt id="splitgraph.engine.ChangeEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ChangeEngine</code><a className="headerlink" href="#splitgraph.engine.ChangeEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.SQLEngine" title="splitgraph.engine.SQLEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.SQLEngine</span></code></a>, <code className="xref py py-class docutils literal notranslate"><span className="pre">abc.ABC</span></code></p>
+<p>An SQL engine that can perform change tracking on a set of tables.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.discard_pending_changes">
+<code className="sig-name descname">discard_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.discard_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discard recorded pending changes for a tracked table or the whole schema</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_change_key">
+<code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the key used to identify a row in a change (list of column name, column type).
+If the tracked table has a PK, we use that; if it doesn’t, the whole row is used.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_changed_tables">
+<code className="sig-name descname">get_changed_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_changed_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>List tracked tables that have pending changes</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>schema</strong> – Schema to check for changes</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of tables with changed contents</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_pending_changes">
+<code className="sig-name descname">get_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="o">=</span><span className="default_value">False</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return pending changes for a given tracked table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema the table belongs to</p></li>
+<li><p><strong>table</strong> – Table to return changes for</p></li>
+<li><p><strong>aggregate</strong> – Whether to aggregate changes or return them completely</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If aggregate is True: tuple with numbers of <cite>(added_rows, removed_rows, updated_rows)</cite>.
+If aggregate is False: A changeset. The changeset is a list of
+<cite>(pk, action (0 for Insert, 1 for Delete, 2 for Update), action_data)</cite>
+where <cite>action_data</cite> is <cite>None</cite> for Delete and <cite>&#38;lbrace;‘c’: [column_names], ‘v’: [column_values]&#38;rbrace;</cite> that
+have been inserted/updated otherwise.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_tracked_tables">
+<code className="sig-name descname">get_tracked_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_tracked_tables" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>A list of (table_schema, table_name) that the engine currently tracks for changes</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return True if the tracked schema has pending changes and False if it doesn’t.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.track_tables">
+<code className="sig-name descname">track_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.track_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Start engine-specific change tracking on a list of tables.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tables</strong> – List of (table_schema, table_name) to start tracking</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.untrack_tables">
+<code className="sig-name descname">untrack_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.untrack_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stop engine-specific change tracking on a list of tables and delete any pending changes.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tables</strong> – List of (table_schema, table_name) to start tracking</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.ObjectEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ObjectEngine</code><a className="headerlink" href="#splitgraph.engine.ObjectEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Routines for storing/applying objects as well as sharing them with other engines.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.apply_fragments">
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">target_schema</span></em>, <em className="sig-param"><span className="n">target_table</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_schema, object_table)</cite> that the objects are stored in.</p></li>
+<li><p><strong>target_schema</strong> – Schema to apply the fragment to</p></li>
+<li><p><strong>target_table</strong> – Table to apply the fragment to</p></li>
+<li><p><strong>extra_quals</strong> – Optional, extra SQL (Composable) clauses to filter new rows in the fragment on
+(e.g. SQL(“a = %s”))</p></li>
+<li><p><strong>extra_qual_args</strong> – Optional, a tuple of arguments to use with <cite>extra_quals</cite></p></li>
+<li><p><strong>schema_spec</strong> – Optional, list of (ordinal, column_name, column_type, is_pk).
+If not specified, uses the schema of target_table.</p></li>
+<li><p><strong>progress_every</strong> – If set, will report the materialization progress via
+tqdm every <cite>progress_every</cite> objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.delete_objects">
+<code className="sig-name descname">delete_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.delete_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete one or more objects from the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_ids</strong> – IDs of objects to delete</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">remote_engine</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the remote engine to the local cache</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to download</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to download the objects from.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:return List of object IDs that were downloaded.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.dump_object">
+<code className="sig-name descname">dump_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em>, <em className="sig-param"><span className="n">stream</span></em>, <em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.dump_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump an object into a series of SQL statements</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Object ID</p></li>
+<li><p><strong>stream</strong> – Text stream to dump the object into</p></li>
+<li><p><strong>schema</strong> – Schema the object lives in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.get_object_schema">
+<code className="sig-name descname">get_object_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.get_object_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the schema of a given object, returned as a list of
+(ordinal, column_name, column_type, is_pk).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_id</strong> – ID of the object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.get_object_size">
+<code className="sig-name descname">get_object_size</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.get_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the on-disk footprint of this object, in bytes
+:param object_id: ID of the object</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.store_fragment">
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span></em>, <em className="sig-param"><span className="n">deleted</span></em>, <em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">source_schema</span></em>, <em className="sig-param"><span className="n">source_table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Store a fragment of a changed table in another table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>inserted</strong> – List of PKs that have been updated/inserted</p></li>
+<li><p><strong>deleted</strong> – List of PKs that have been deleted</p></li>
+<li><p><strong>schema</strong> – Schema to store the change in</p></li>
+<li><p><strong>table</strong> – Table to store the change in</p></li>
+<li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
+<li><p><strong>source_table</strong> – Name of the source table</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.store_object">
+<code className="sig-name descname">store_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_query</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bytes<span className="p">, </span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">, </span>psycopg2.sql.SQL<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_query_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Any<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stores a Splitgraph object using a source query in the actual format
+implemented by this engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>source_query</strong> – SELECT query that produces data required by the object</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the source table</p></li>
+<li><p><strong>source_query_args</strong> – Arguments to mogrify into the source query.</p></li>
+<li><p><strong>overwrite</strong> – If True, will overwrite the object if it already exists.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">remote_engine</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the local cache to the remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to upload the objects to.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.ResultShape">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ResultShape</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">value</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ResultShape" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">enum.Enum</span></code></p>
+<p>Shape that the result of a query will be coerced to</p>
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.MANY_MANY">
+<code className="sig-name descname">MANY_MANY</code><em className="property"> = 4</em><a className="headerlink" href="#splitgraph.engine.ResultShape.MANY_MANY" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.MANY_ONE">
+<code className="sig-name descname">MANY_ONE</code><em className="property"> = 3</em><a className="headerlink" href="#splitgraph.engine.ResultShape.MANY_ONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.NONE">
+<code className="sig-name descname">NONE</code><em className="property"> = 0</em><a className="headerlink" href="#splitgraph.engine.ResultShape.NONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.ONE_MANY">
+<code className="sig-name descname">ONE_MANY</code><em className="property"> = 2</em><a className="headerlink" href="#splitgraph.engine.ResultShape.ONE_MANY" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.ONE_ONE">
+<code className="sig-name descname">ONE_ONE</code><em className="property"> = 1</em><a className="headerlink" href="#splitgraph.engine.ResultShape.ONE_ONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.SQLEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">SQLEngine</code><a className="headerlink" href="#splitgraph.engine.SQLEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">abc.ABC</span></code></p>
+<p>Abstraction for a Splitgraph SQL backend. Requires any overriding classes to implement <cite>run_sql</cite> as well as
+a few other functions. Together with the <cite>information_schema</cite> (part of the SQL standard), this class uses those
+functions to implement some basic database management methods like listing, deleting, creating, dumping
+and loading tables.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.close">
+<code className="sig-name descname">close</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.close" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit and close the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.copy_table">
+<code className="sig-name descname">copy_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">with_pk_constraints</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.copy_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Copy a table in the same engine, optionally applying primary key constraints as well.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.create_schema">
+<code className="sig-name descname">create_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.create_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a schema if it doesn’t exist</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.create_table">
+<code className="sig-name descname">create_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">unlogged</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">include_comments</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.create_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a table using a previously-dumped table schema spec</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Table name to create</p></li>
+<li><p><strong>schema_spec</strong> – TableSchema</p></li>
+<li><p><strong>unlogged</strong> – If True, the table won’t be reflected in the WAL or scanned by the analyzer/autovacuum.</p></li>
+<li><p><strong>temporary</strong> – If True, a temporary table is created (the schema parameter is ignored)</p></li>
+<li><p><strong>include_comments</strong> – If True, also adds COMMENT statements for columns that have them.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.delete_schema">
+<code className="sig-name descname">delete_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.delete_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete a schema if it exists, including all the tables in it.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.delete_table">
+<code className="sig-name descname">delete_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.delete_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Drop a table from a schema if it exists</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.dump_table_creation">
+<em className="property">static </em><code className="sig-name descname">dump_table_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">unlogged</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">include_comments</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Tuple<span className="p">[</span>psycopg2.sql.Composed<span className="p">, </span>Tuple<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.dump_table_creation" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dumps the DDL for a table using a previously-dumped table schema spec</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Table name to create</p></li>
+<li><p><strong>schema_spec</strong> – TableSchema</p></li>
+<li><p><strong>unlogged</strong> – If True, the table won’t be reflected in the WAL or scanned by the analyzer/autovacuum.</p></li>
+<li><p><strong>temporary</strong> – If True, a temporary table is created (the schema parameter is ignored)</p></li>
+<li><p><strong>include_comments</strong> – If True, also adds COMMENT statements for columns that have them.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>An SQL statement that reconstructs the table schema + args to be mogrified into it.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.dump_table_sql">
+<code className="sig-name descname">dump_table_sql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table_name</span></em>, <em className="sig-param"><span className="n">stream</span></em>, <em className="sig-param"><span className="n">columns</span><span className="o">=</span><span className="default_value">'*'</span></em>, <em className="sig-param"><span className="n">where</span><span className="o">=</span><span className="default_value">''</span></em>, <em className="sig-param"><span className="n">where_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.dump_table_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump the table contents in the SQL format
+:param schema: Schema the table is located in
+:param table_name: Name of the table
+:param stream: A file-like object to write the result into.
+:param columns: SQL column spec. Default ‘*’.
+:param where: Optional, an SQL WHERE clause
+:param where_args: Arguments for the optional WHERE clause.
+:param target_schema: Schema to create the table in (default same as <cite>schema</cite>)
+:param target_table: Name of the table to insert data into (default same as <cite>table_name</cite>)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_all_tables">
+<code className="sig-name descname">get_all_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_all_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get all tables in a given schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_full_table_schema">
+<code className="sig-name descname">get_full_table_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_full_table_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Generates a list of (column ordinal, name, data type, is_pk, column comment),
+used to detect schema changes like columns being dropped/added/renamed or type changes.</p>
+<p>NB this doesn’t work for temporary tables (pg_temp) and returns an empty schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_primary_keys">
+<code className="sig-name descname">get_primary_keys</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_primary_keys" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a list of (column_name, column_type) denoting the primary keys of a given table.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_table_type">
+<code className="sig-name descname">get_table_type</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_table_type" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the type of the table (BASE or FOREIGN)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.initialize">
+<code className="sig-name descname">initialize</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.initialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Does any required initialization of the engine</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.lock_table">
+<code className="sig-name descname">lock_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.lock_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Acquire an exclusive lock on a given table, released when the transaction commits / rolls back.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.rollback">
+<code className="sig-name descname">rollback</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.rollback" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">statement</em>, <em className="sig-param">arguments=None</em>, <em className="sig-param">return_shape=&lt;ResultShape.MANY_MANY: 4></em>, <em className="sig-param">named=False</em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an arbitrary SQL statement with some arguments, return an iterator of results.
+If the statement doesn’t return any results, return None. If named=True, return named
+tuples when possible.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql_batch">
+<code className="sig-name descname">run_sql_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">statement</span></em>, <em className="sig-param"><span className="n">arguments</span></em>, <em className="sig-param"><span className="n">schema</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql_batch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a parameterized SQL statement against multiple sets of arguments.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>statement</strong> – Statement to run</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>schema</strong> – Schema to run the statement in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql_in">
+<code className="sig-name descname">run_sql_in</code><span className="sig-paren">(</span><em className="sig-param">schema: str, sql: Union[psycopg2.sql.Composed, str], arguments: None = None, return_shape: splitgraph.engine.ResultShape = &lt;ResultShape.MANY_MANY: 4></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql_in" title="Permalink to this definition">¶</a></dt>
+<dd><p>Executes a non-schema-qualified query against a specific schema.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to run the query in</p></li>
+<li><p><strong>sql</strong> – Query</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>return_shape</strong> – ReturnShape to coerce the result into.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.savepoint">
+<code className="sig-name descname">savepoint</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>None<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.savepoint" title="Permalink to this definition">¶</a></dt>
+<dd><p>At the beginning of this context manager, a savepoint is initialized and any database
+error that occurs in run_sql results in a rollback to this savepoint rather than the
+rollback of the whole transaction. At exit, the savepoint is released.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.schema_exists">
+<code className="sig-name descname">schema_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.SQLEngine.schema_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if a schema exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>schema</strong> – Schema name</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.table_exists">
+<code className="sig-name descname">table_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.SQLEngine.table_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if a table exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema name</p></li>
+<li><p><strong>table_name</strong> – Table name</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.get_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">get_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">use_socket</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">use_fdw_params</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → PostgresEngine<a className="headerlink" href="#splitgraph.engine.get_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the current global engine or a named remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>name</strong> – Name of the remote engine as specified in the config. If None, the current global engine
+is returned.</p></li>
+<li><p><strong>use_socket</strong> – Use a local UNIX socket instead of PG_HOST, PG_PORT for LOCAL engine connections.</p></li>
+<li><p><strong>use_fdw_params</strong> – Use the _FDW connection parameters (SG_ENGINE_FDW_HOST/PORT). By default,
+will infer from the global splitgraph.config.IN_FDW flag.</p></li>
+<li><p><strong>autocommit</strong> – If True, the engine will not open SQL transactions implicitly.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.set_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">set_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.set_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Switch the global engine to a different one.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.switch_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">switch_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>None<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.switch_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Switch the global engine to a different one. The engine will
+get switched back on exit from the context manager.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+</dl>
+</dd></dl>
+
+</div><div className="section" id="splitgraph-engine-package">
+
+<div className="section" id="subpackages">
+<h2 id="subpackages">Subpackages<a className="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
+<div className="toctree-wrapper compound">
+<ul>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.engine.postgres/">splitgraph.engine.postgres package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres.engine">splitgraph.engine.postgres.engine module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.engine.postgres.mdx b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.engine.postgres.mdx
new file mode 100644
index 00000000..0c07455e
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.engine.postgres.mdx
@@ -0,0 +1,438 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.engine.postgres package",
+  id: "splitgraph.engine.postgres package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphenginepostgresengine-module">splitgraph.engine.postgres.engine module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.engine.postgres">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.engine.postgres" title="Permalink to this headline">¶</a></h2>
+</div><div className="section" id="splitgraph-engine-postgres-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.engine.postgres.engine">
+<span id="splitgraph-engine-postgres-engine-module"></span><h2 id="splitgraphenginepostgresengine-module">splitgraph.engine.postgres.engine module<a className="headerlink" href="#module-splitgraph.engine.postgres.engine" title="Permalink to this headline">¶</a></h2>
+<p>Default Splitgraph engine: uses PostgreSQL to store metadata and actual objects and an audit stored procedure
+to track changes, as well as the Postgres FDW interface to upload/download objects to/from other Postgres engines.</p>
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">AuditTriggerChangeEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.postgres.engine.PsycopgEngine" title="splitgraph.engine.postgres.engine.PsycopgEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.postgres.engine.PsycopgEngine</span></code></a>, <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.ChangeEngine" title="splitgraph.engine.ChangeEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.ChangeEngine</span></code></a></p>
+<p>Change tracking based on an audit trigger stored procedure</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.discard_pending_changes">
+<code className="sig-name descname">discard_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.discard_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discard recorded pending changes for a tracked schema / table</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_changed_tables">
+<code className="sig-name descname">get_changed_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_changed_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get list of tables that have changed content</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_pending_changes">
+<code className="sig-name descname">get_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Union<span className="p">[</span>List<span className="p">[</span>Tuple<span className="p">[</span>int<span className="p">, </span>int<span className="p">]</span><span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Tuple<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span><span className="p">…</span><span className="p">]</span><span className="p">, </span>bool<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return pending changes for a given tracked table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema the table belongs to</p></li>
+<li><p><strong>table</strong> – Table to return changes for</p></li>
+<li><p><strong>aggregate</strong> – Whether to aggregate changes or return them completely</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If aggregate is True: List of tuples of (change_type, number of rows).
+If aggregate is False: List of (primary_key, change_type, change_data)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_tracked_tables">
+<code className="sig-name descname">get_tracked_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_tracked_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a list of tables that the audit trigger is working on.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return True if the tracked schema has pending changes and False if it doesn’t.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.track_tables">
+<code className="sig-name descname">track_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.track_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Install the audit trigger on the required tables</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.untrack_tables">
+<code className="sig-name descname">untrack_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.untrack_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Remove triggers from tables and delete their pending changes</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">PostgresEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine" title="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.postgres.engine.AuditTriggerChangeEngine</span></code></a>, <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.ObjectEngine" title="splitgraph.engine.ObjectEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.ObjectEngine</span></code></a></p>
+<p>An implementation of the Postgres engine for Splitgraph</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments">
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.sql.Composed<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_schema, object_table)</cite> that the objects are stored in.</p></li>
+<li><p><strong>target_schema</strong> – Schema to apply the fragment to</p></li>
+<li><p><strong>target_table</strong> – Table to apply the fragment to</p></li>
+<li><p><strong>extra_quals</strong> – Optional, extra SQL (Composable) clauses to filter new rows in the fragment on
+(e.g. SQL(“a = %s”))</p></li>
+<li><p><strong>extra_qual_args</strong> – Optional, a tuple of arguments to use with <cite>extra_quals</cite></p></li>
+<li><p><strong>schema_spec</strong> – Optional, list of (ordinal, column_name, column_type, is_pk).
+If not specified, uses the schema of target_table.</p></li>
+<li><p><strong>progress_every</strong> – If set, will report the materialization progress via
+tqdm every <cite>progress_every</cite> objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.delete_objects">
+<code className="sig-name descname">delete_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.delete_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete one or more objects from the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_ids</strong> – IDs of objects to delete</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the remote engine to the local cache</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to download</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to download the objects from.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:return List of object IDs that were downloaded.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object">
+<code className="sig-name descname">dump_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump an object into a series of SQL statements</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Object ID</p></li>
+<li><p><strong>stream</strong> – Text stream to dump the object into</p></li>
+<li><p><strong>schema</strong> – Schema the object lives in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation">
+<code className="sig-name descname">dump_object_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">if_not_exists</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → bytes<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation" title="Permalink to this definition">¶</a></dt>
+<dd><p>Generate the SQL that remounts a foreign table pointing to a Splitgraph object.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Name of the table to mount</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the table</p></li>
+<li><p><strong>if_not_exists</strong> – Add IF NOT EXISTS to the DDL</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>SQL in bytes format.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_change_key">
+<code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the key used to identify a row in a change (list of column name, column type).
+If the tracked table has a PK, we use that; if it doesn’t, the whole row is used.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_object_schema">
+<code className="sig-name descname">get_object_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_object_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the schema of a given object, returned as a list of
+(ordinal, column_name, column_type, is_pk).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_id</strong> – ID of the object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_object_size">
+<code className="sig-name descname">get_object_size</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the on-disk footprint of this object, in bytes
+:param object_id: ID of the object</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.mount_object">
+<code className="sig-name descname">mount_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_meta'</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.mount_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount an object from local storage as a foreign table.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – ID of the object</p></li>
+<li><p><strong>table</strong> – Table to mount the object into</p></li>
+<li><p><strong>schema</strong> – Schema to mount the object into</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the object.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_fragment">
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">deleted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Store a fragment of a changed table in another table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>inserted</strong> – List of PKs that have been updated/inserted</p></li>
+<li><p><strong>deleted</strong> – List of PKs that have been deleted</p></li>
+<li><p><strong>schema</strong> – Schema to store the change in</p></li>
+<li><p><strong>table</strong> – Table to store the change in</p></li>
+<li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
+<li><p><strong>source_table</strong> – Name of the source table</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_object">
+<code className="sig-name descname">store_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_query</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bytes<span className="p">, </span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">, </span>psycopg2.sql.SQL<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_query_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="o">=</span><span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stores a Splitgraph object using a source query in the actual format
+implemented by this engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>source_query</strong> – SELECT query that produces data required by the object</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the source table</p></li>
+<li><p><strong>source_query_args</strong> – Arguments to mogrify into the source query.</p></li>
+<li><p><strong>overwrite</strong> – If True, will overwrite the object if it already exists.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.sync_object_mounts">
+<code className="sig-name descname">sync_object_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.sync_object_mounts" title="Permalink to this definition">¶</a></dt>
+<dd><p>Scan through local object storage and synchronize it with the foreign tables in
+splitgraph_meta (unmounting non-existing objects and mounting existing ones).</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.unmount_objects">
+<code className="sig-name descname">unmount_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.unmount_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Unmount objects from splitgraph_meta (this doesn’t delete the physical files.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the local cache to the remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to upload the objects to.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">PsycopgEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.SQLEngine" title="splitgraph.engine.SQLEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.SQLEngine</span></code></a></p>
+<p>Postgres SQL engine backed by a Psycopg connection.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.close">
+<code className="sig-name descname">close</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.close" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit and close the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.close_others">
+<code className="sig-name descname">close_others</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.close_others" title="Permalink to this definition">¶</a></dt>
+<dd><p>Close and release all other connections to the connection pool.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.connection">
+<em className="property">property </em><code className="sig-name descname">connection</code><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.connection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Engine-internal Psycopg connection.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.delete_database">
+<code className="sig-name descname">delete_database</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">database</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.delete_database" title="Permalink to this definition">¶</a></dt>
+<dd><p>Helper function to drop a database using the admin connection</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>database</strong> – Database name to drop</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.dump_table_sql">
+<code className="sig-name descname">dump_table_sql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'*'</span></em>, <em className="sig-param"><span className="n">where</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">''</span></em>, <em className="sig-param"><span className="n">where_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.dump_table_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump the table contents in the SQL format
+:param schema: Schema the table is located in
+:param table_name: Name of the table
+:param stream: A file-like object to write the result into.
+:param columns: SQL column spec. Default ‘*’.
+:param where: Optional, an SQL WHERE clause
+:param where_args: Arguments for the optional WHERE clause.
+:param target_schema: Schema to create the table in (default same as <cite>schema</cite>)
+:param target_table: Name of the table to insert data into (default same as <cite>table_name</cite>)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.get_primary_keys">
+<code className="sig-name descname">get_primary_keys</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.get_primary_keys" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inspects the Postgres information_schema to get the primary keys for a given table.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.initialize">
+<code className="sig-name descname">initialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">skip_object_handling</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">skip_create_database</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.initialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create the Splitgraph Postgres database and install the audit trigger</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>skip_object_handling</strong> – If True, skips installation of
+audit triggers and other object management routines for engines
+that don’t need change tracking or checkouts.</p></li>
+<li><p><strong>skip_create_database</strong> – Don’t create the Splitgraph database</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.lock_table">
+<code className="sig-name descname">lock_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.lock_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Acquire an exclusive lock on a given table, released when the transaction commits / rolls back.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.rollback">
+<code className="sig-name descname">rollback</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.rollback" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call">
+<code className="sig-name descname">run_api_call</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">call</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">*</span><span className="n">args</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_api'</span></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call_batch">
+<code className="sig-name descname">run_api_call_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">call</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">argslist</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_api'</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call_batch" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_chunked_sql">
+<code className="sig-name descname">run_chunked_sql</code><span className="sig-paren">(</span><em className="sig-param">statement: Union[bytes, psycopg2.sql.Composed, str, psycopg2.sql.SQL], arguments: Sequence[Any], return_shape: Optional[splitgraph.engine.ResultShape] = &lt;ResultShape.MANY_MANY: 4>, chunk_size: int = 1000, chunk_position: int = -1</em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_chunked_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Because the Splitgraph API has a request size limitation, certain
+SQL calls with variadic arguments are going to be too long to fit that. This function
+runs an SQL query against a set of broken up arguments and returns the combined result.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">statement: Union[bytes, psycopg2.sql.Composed, str, psycopg2.sql.SQL], arguments: Optional[Sequence[Any]] = None, return_shape: Optional[splitgraph.engine.ResultShape] = &lt;ResultShape.MANY_MANY: 4>, named: bool = False</em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an arbitrary SQL statement with some arguments, return an iterator of results.
+If the statement doesn’t return any results, return None. If named=True, return named
+tuples when possible.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_sql_batch">
+<code className="sig-name descname">run_sql_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">statement</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">arguments</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">max_size</span><span className="o">=</span><span className="default_value">261000</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_sql_batch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a parameterized SQL statement against multiple sets of arguments.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>statement</strong> – Statement to run</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>schema</strong> – Schema to run the statement in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.splitgraph_version">
+<em className="property">property </em><code className="sig-name descname">splitgraph_version</code><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.splitgraph_version" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the version of the Splitgraph library installed on the engine
+and by association the version of the engine itself.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.add_ud_flag_column">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">add_ud_flag_column</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_schema</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.add_ud_flag_column" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.chunk">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">chunk</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sequence</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>T<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">chunk_size</span><span className="p">:</span> <span className="n">int</span> <span className="o">=</span> <span className="default_value">1000</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>List<span className="p">[</span>T<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.chunk" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.get_change_key">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.get_conn_str">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">get_conn_str</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.engine.postgres.engine.get_conn_str" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.hooks.mdx b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.hooks.mdx
new file mode 100644
index 00000000..3999a8c4
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.hooks.mdx
@@ -0,0 +1,356 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.hooks package",
+  id: "splitgraph.hooks package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhooksexternal_objects-module">splitgraph.hooks.external_objects module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhookss3-module">splitgraph.hooks.s3 module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhookssplitfile_commands-module">splitgraph.hooks.splitfile_commands module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.hooks">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.hooks" title="Permalink to this headline">¶</a></h2>
+<p>Various hooks for extending Splitgraph, including:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>External object handlers (<a className="reference internal" href="#module-splitgraph.hooks.external_objects" title="splitgraph.hooks.external_objects"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects</span></code></a>) allowing to download/upload objects
+to locations other than the remote Splitgraph engine.</p></li>
+<li><p>FDW handlers (<a className="reference internal" href="#module-splitgraph.hooks.mount_handlers" title="splitgraph.hooks.mount_handlers"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.mount_handlers</span></code></a>) that allow to use the Postgres engine’s FDW interface
+to mount other external databases on the engine.</p></li>
+<li><p>Splitfile commands (<a className="reference internal" href="#module-splitgraph.hooks.splitfile_commands" title="splitgraph.hooks.splitfile_commands"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.splitfile_commands</span></code></a>) to define custom data transformation steps
+compatible with the Splitfile framework.</p></li>
+</ul>
+</div></blockquote>
+</div><div className="section" id="splitgraph-hooks-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.hooks.external_objects">
+<span id="splitgraph-hooks-external-objects-module"></span><h2 id="splitgraphhooksexternal_objects-module">splitgraph.hooks.external_objects module<a className="headerlink" href="#module-splitgraph.hooks.external_objects" title="Permalink to this headline">¶</a></h2>
+<p>Hooks for registering handlers to upload/download objects from external locations into Splitgraph’s cache.</p>
+<dl className="py class">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">ExternalObjectHandler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Framework for allowing to dump objects from the Splitgraph cache to an external location. This allows
+the objects to be stored somewhere other than the actual remote engine.</p>
+<p>External object handlers must extend this class and be registered in the Splitgraph config.</p>
+<p>For an example of how this can be used, see splitgraph.hooks.s3: it’s a handler allowing objects to be
+uploaded to S3/S3-compatible host using the Minio API. It’s registered in the config as follows:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="p">[</span><span className="n">external_handlers</span><span className="p">]</span>
+<span className="n">S3</span><span className="o">=</span><span className="n">splitgraph</span><span className="o">.</span><span className="n">hooks</span><span className="o">.</span><span className="n">s3</span><span className="o">.</span><span className="n">S3ExternalObjectHandler</span>
+</pre></div>
+</div>
+<p>The protocol and the URLs returned by this handler are stored in splitgraph_meta.external_objects
+and used to download the objects back into the Splitgraph cache when they are needed.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the external location into the Splitgraph cache.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_id, object_url)</cite> that this handler had previosly
+uploaded the objects to.</p></li>
+<li><p><strong>remote_engine</strong> – An instance of Engine class that the objects will be registered on</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of object IDs that have been successfully downloaded.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the Splitgraph cache to an external location</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – An instance of Engine class that the objects will be registered on</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of successfully uploaded object IDs and URLs they can be found at.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.external_objects.get_external_object_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">get_external_object_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler">splitgraph.hooks.external_objects.ExternalObjectHandler</a><a className="headerlink" href="#splitgraph.hooks.external_objects.get_external_object_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Load an external protocol handler by its name, initializing it with optional parameters.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.external_objects.register_upload_download_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">register_upload_download_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_class</span><span className="p">:</span> <span className="n">Callable<span className="p">[</span><span className="p">[</span><span className="p">…</span><span className="p">]</span><span className="p">, </span><a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler">splitgraph.hooks.external_objects.ExternalObjectHandler</a><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.external_objects.register_upload_download_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Register an external protocol handler. See the docstring for <cite>get_upload_download_handler</cite> for the required
+signatures of the handler functions.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.mount_handlers">
+<span id="splitgraph-hooks-mount-handlers-module"></span><h2 id="splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module<a className="headerlink" href="#module-splitgraph.hooks.mount_handlers" title="Permalink to this headline">¶</a></h2>
+<p>Hooks for additional handlers used to mount other databases via FDW. These handlers become available
+in the command line tool (via <cite>sgr mount</cite>) and in the Splitfile interpreter (via <cite>FROM MOUNT</cite>).</p>
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.get_mount_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">get_mount_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Callable<a className="headerlink" href="#splitgraph.hooks.mount_handlers.get_mount_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a mount function for a given handler.
+The mount function must have a signature <cite>(mountpoint, server, port, username, password, handler_kwargs)</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.get_mount_handlers">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">get_mount_handlers</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.mount_handlers.get_mount_handlers" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the names of all registered mount handlers.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.init_fdw">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">init_fdw</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">server_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">user_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.init_fdw" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets up a foreign data server on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – PostgresEngine</p></li>
+<li><p><strong>server_id</strong> – Name to call the foreign server, must be unique. Will be deleted if exists.</p></li>
+<li><p><strong>wrapper</strong> – Name of the foreign data wrapper (must be installed as an extension on the engine)</p></li>
+<li><p><strong>server_options</strong> – Dictionary of FDW options</p></li>
+<li><p><strong>user_options</strong> – Dictionary of user options</p></li>
+<li><p><strong>overwrite</strong> – If the server already exists, delete and recreate it.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_kwargs</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>int<span className="p">, </span>None<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mounts a foreign database via Postgres FDW (without creating new Splitgraph objects)</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Mountpoint to import the new tables into.</p></li>
+<li><p><strong>mount_handler</strong> – The type of the mounted database. Must be one of <cite>postgres_fdw</cite> or <cite>mongo_fdw</cite>.</p></li>
+<li><p><strong>handler_kwargs</strong> – Dictionary of options to pass to the mount handler.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_mongo">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_mongo</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">int</span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">table_spec</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_mongo" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a Mongo database.</p>
+<p>Mounts one or more collections on a remote Mongo database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Port the Mongo server is running on.</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>table_spec</strong> – A dictionary of form <cite>&#38;lbrace;“table_name”: &#38;lbrace;“db”: &lt;dbname>, “coll”: &lt;collection>,
+“schema”: &#38;lbrace;“col1”: “type1”…&#38;rbrace;&#38;rbrace;&#38;rbrace;</cite>.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_mysql">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_mysql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">int</span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">remote_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_mysql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a MySQL database.</p>
+<p>Mounts a schema on a remote MySQL database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Database port</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>remote_schema</strong> – Remote schema name.</p></li>
+<li><p><strong>tables</strong> – Tables to mount (default all).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_postgres">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_postgres</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>int<span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">dbname</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">remote_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_postgres" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a Postgres database.</p>
+<p>Mounts a schema on a remote Postgres database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Port the Postgres server is running on.</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>dbname</strong> – Remote database name.</p></li>
+<li><p><strong>remote_schema</strong> – Remote schema name.</p></li>
+<li><p><strong>tables</strong> – Tables to mount (default all).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.register_mount_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">register_mount_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_function</span><span className="p">:</span> <span className="n">Callable</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.register_mount_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a mount function under a given name. See <cite>get_mount_handler</cite> for the mount handler spec.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.s3">
+<span id="splitgraph-hooks-s3-module"></span><h2 id="splitgraphhookss3-module">splitgraph.hooks.s3 module<a className="headerlink" href="#module-splitgraph.hooks.s3" title="Permalink to this headline">¶</a></h2>
+<p>Plugin for uploading Splitgraph objects from the cache to an external S3-like object store</p>
+<dl className="py class">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">S3ExternalObjectHandler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects.ExternalObjectHandler</span></code></a></p>
+<p>Uploads/downloads the objects to/from S3/S3-compatible host using the Minio client.</p>
+<p>The handler is “attached” to a given registry which manages issuing pre-signed
+GET/PUT URLs.</p>
+<p>The handler supports a parameter <cite>threads</cite> specifying the number of threads
+used to upload the objects.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from Minio.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>objects</strong> – List of (object ID, object URL (object ID it’s stored under))</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects to Minio</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_engine</strong> – Remote Engine class</p></li>
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of tuples with successfully uploaded objects and their URLs.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.s3.get_object_download_urls">
+<code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">get_object_download_urls</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_engine</span></em>, <em className="sig-param"><span className="n">remote_object_ids</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.get_object_download_urls" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.s3.get_object_upload_urls">
+<code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">get_object_upload_urls</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_engine</span></em>, <em className="sig-param"><span className="n">objects</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.get_object_upload_urls" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.splitfile_commands">
+<span id="splitgraph-hooks-splitfile-commands-module"></span><h2 id="splitgraphhookssplitfile_commands-module">splitgraph.hooks.splitfile_commands module<a className="headerlink" href="#module-splitgraph.hooks.splitfile_commands" title="Permalink to this headline">¶</a></h2>
+<p>A framework for custom Splitfile commands. The execution flow is as follows:</p>
+<blockquote>
+<div><ul>
+<li><p>When the Splitfile executor finds an unknown command, it looks for an entry in the config file:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="p">[</span><span className="n">commands</span><span className="p">]</span>
+<span className="n">RUN</span><span className="o">=</span><span className="n">splitgraph</span><span className="o">.</span><span className="n">plugins</span><span className="o">.</span><span className="n">Run</span>
+</pre></div>
+</div>
+</li>
+<li><p>The command class must extend this class, initialized at every invocation time.</p></li>
+<li><p>The command’s <cite>calc_hash()</cite> method is run. The resultant command context hash is combined with the current
+image hash to produce the new image hash: if it already exists, then the image is simply checked out.</p></li>
+<li><p>Otherwise (or if calc_hash is undefined or returns None), <cite>execute()</cite>, where the actual command should be
+implemented, is run. If it returns a hash, this hash is used for the new image. If this hash already exists,
+the existing image is checked out instead. If the command returns None, a random hash is generated for the
+new image.</p></li>
+</ul>
+</div></blockquote>
+<dl className="py class">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.splitfile_commands.</code><code className="sig-name descname">PluginCommand</code><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Base class for custom Splitfile commands.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand.calc_hash">
+<code className="sig-name descname">calc_hash</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span></em>, <em className="sig-param"><span className="n">args</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand.calc_hash" title="Permalink to this definition">¶</a></dt>
+<dd><p>Calculates the command context hash for this custom command. If either the command context hash or the
+previous image hash has changed, then the image hash produced by this command will change.
+Consequently, two commands with the same command context hashes are assumed to have the same effect
+on any Splitgraph images.</p>
+<p>This is supposed to be a lightweight method intended for pre-flight image hash calculations
+(without performing the actual transformation). If it returns None, the actual transformation is run anyway.</p>
+<p>For example, for a command that imports some data from an external URL, this could be the hash of the last
+modified timestamp provided by the external data vendor. If the timestamp is unchanged, the data is unchanged
+and so actual command won’t be re-executed.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>repository</strong> – SG Repository object pointed to a schema with the checked out image
+the command is being run against.</p></li>
+<li><p><strong>args</strong> – Positional arguments to the command</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Command context hash (a string of 64 hexadecimal digits)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand.execute">
+<code className="sig-name descname">execute</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span></em>, <em className="sig-param"><span className="n">args</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand.execute" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute the custom command against the target schema, optionally returning the new image hash. The contract
+for the command is as follows (though it is not currently enforced by the runtime):</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>Has to use get_engine().run_sql (or run_sql_batch) to interact with the engine.</p></li>
+<li><p>Can only write to the schema with the checked-out repository (run_sql runs non-schema-qualified
+statements against the correct schema).</p></li>
+<li><p>Can inspect splitgraph_meta (e.g. to find the current HEAD) for the repository.</p></li>
+<li><p>Can’t alter the versioning of the repository.</p></li>
+</ul>
+</div></blockquote>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>repository</strong> – SG Repository object pointed to a schema with the checked out image
+the command is being run against.</p></li>
+<li><p><strong>args</strong> – Positional arguments to the command</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Command context hash (a string of 64 hexadecimal digits). If calc_hash() had previously returned
+a hash, this hash is ignored. If both this command and calc_hash() return None, the hash is randomly
+generated.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.mdx b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.mdx
new file mode 100644
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--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.mdx
@@ -0,0 +1,254 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph package",
+  id: "splitgraph package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#subpackages">Subpackages</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphexceptions-module">splitgraph.exceptions module</a></li><li className="toc-item toc-item-h1"><a className="toc-link toc-link-h1" href="#indices-and-tables">Indices and tables</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph" title="Permalink to this headline">¶</a></h2>
+</div><div className="section" id="splitgraph-package">
+
+<div className="section" id="subpackages">
+<h2 id="subpackages">Subpackages<a className="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
+<div className="toctree-wrapper compound">
+<ul>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.config/">splitgraph.config package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.argument_config">splitgraph.config.argument_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.config">splitgraph.config.config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.config_file_config">splitgraph.config.config_file_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.default_config">splitgraph.config.default_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.environment_config">splitgraph.config.environment_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.keys">splitgraph.config.keys module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.system_config">splitgraph.config.system_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.core/">splitgraph.core package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.engine">splitgraph.core.engine module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.image">splitgraph.core.image module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.object_manager">splitgraph.core.object_manager module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.registry">splitgraph.core.registry module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.repository">splitgraph.core.repository module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.table">splitgraph.core.table module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.engine/">splitgraph.engine package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine/#subpackages">Subpackages</a><ul>
+<li className="toctree-l3"><a className="reference internal" href="splitgraph.engine.postgres/">splitgraph.engine.postgres package</a><ul>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#submodules">Submodules</a></li>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres.engine">splitgraph.engine.postgres.engine module</a></li>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine/#module-splitgraph.engine">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.hooks/">splitgraph.hooks package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.external_objects">splitgraph.hooks.external_objects module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.mount_handlers">splitgraph.hooks.mount_handlers module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.s3">splitgraph.hooks.s3 module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.splitfile_commands">splitgraph.hooks.splitfile_commands module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.splitfile/">splitgraph.splitfile package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#module-splitgraph.splitfile.execution">splitgraph.splitfile.execution module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#module-splitgraph.splitfile">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.exceptions">
+<span id="splitgraph-exceptions-module"></span><h2 id="splitgraphexceptions-module">splitgraph.exceptions module<a className="headerlink" href="#module-splitgraph.exceptions" title="Permalink to this headline">¶</a></h2>
+<p>Exceptions that can be raised by the Splitgraph library.</p>
+<dl className="py exception">
+<dt id="splitgraph.exceptions.APICompatibilityError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">APICompatibilityError</code><a className="headerlink" href="#splitgraph.exceptions.APICompatibilityError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions related to API incompatibilities</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.AuthAPIError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">AuthAPIError</code><a className="headerlink" href="#splitgraph.exceptions.AuthAPIError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by the Auth API</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.CheckoutError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">CheckoutError</code><a className="headerlink" href="#splitgraph.exceptions.CheckoutError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to checking out/committing repositories</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.DockerUnavailableError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">DockerUnavailableError</code><a className="headerlink" href="#splitgraph.exceptions.DockerUnavailableError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Could not connect to the Docker daemon.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.EngineInitializationError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">EngineInitializationError</code><a className="headerlink" href="#splitgraph.exceptions.EngineInitializationError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when the engine isn’t initialized (no splitgraph_meta schema or audit triggers)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ExternalHandlerError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ExternalHandlerError</code><a className="headerlink" href="#splitgraph.exceptions.ExternalHandlerError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by external object handlers.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLAPIError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLAPIError</code><a className="headerlink" href="#splitgraph.exceptions.GQLAPIError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>GQL API errors</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLRepoDoesntExistError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLRepoDoesntExistError</code><a className="headerlink" href="#splitgraph.exceptions.GQLRepoDoesntExistError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Repository doesn’t exist</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLUnauthenticatedError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLUnauthenticatedError</code><a className="headerlink" href="#splitgraph.exceptions.GQLUnauthenticatedError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Unauthenticated (user not logged in)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLUnauthorizedError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLUnauthorizedError</code><a className="headerlink" href="#splitgraph.exceptions.GQLUnauthorizedError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Unauthorized (e.g. repository isn’t writeable by the user)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ImageNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ImageNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.ImageNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A Splitgraph image doesn’t exist.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.IncompleteObjectDownloadError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">IncompleteObjectDownloadError</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reason</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>BaseException<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.exceptions.IncompleteObjectDownloadError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when an error is encountered during download of multiple objects.
+The handler is supposed to perform any necessary
+cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.IncompleteObjectUploadError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">IncompleteObjectUploadError</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reason</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>BaseException<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_object_urls</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.exceptions.IncompleteObjectUploadError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when an error is encountered during upload of multiple objects.
+The handler is supposed to perform any necessary
+cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.MountHandlerError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">MountHandlerError</code><a className="headerlink" href="#splitgraph.exceptions.MountHandlerError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by mount handlers.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectCacheError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectCacheError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectCacheError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Issues with the object cache (not enough space)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectIndexingError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectIndexingError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectIndexingError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to indexing objects</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectMountingError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectMountingError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectMountingError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to incompatible objects.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when a physical object doesn’t exist in the cache.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.RepositoryNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">RepositoryNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.RepositoryNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A Splitgraph repository doesn’t exist.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.SplitGraphError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">SplitGraphError</code><a className="headerlink" href="#splitgraph.exceptions.SplitGraphError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">Exception</span></code></p>
+<p>A generic Splitgraph exception.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.SplitfileError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">SplitfileError</code><a className="headerlink" href="#splitgraph.exceptions.SplitfileError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Generic error class for Splitfile interpretation/execution errors.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.TableNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">TableNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.TableNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A table doesn’t exist in an image</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.UnsupportedSQLError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">UnsupportedSQLError</code><a className="headerlink" href="#splitgraph.exceptions.UnsupportedSQLError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised for unsupported SQL statements, for example, containing schema-qualified tables when the statement
+is supposed to be used in an SQL/IMPORT Splitfile command.</p>
+</dd></dl>
+
+</div>
+
+</div>
+<div className="section" id="indices-and-tables">
+<h1 id="indices-and-tables">Indices and tables<a className="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h1>
+<ul className="simple">
+<li><p><a className="reference internal" href="../genindex/"><span className="std std-ref">Index</span></a></p></li>
+<li><p><a className="reference internal" href="../py-modindex/"><span className="std std-ref">Module Index</span></a></p></li>
+<li><p><a className="reference internal" href="../search/"><span className="std std-ref">Search Page</span></a></p></li>
+</ul>
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.splitfile.mdx b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.splitfile.mdx
new file mode 100644
index 00000000..b0460786
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.1/splitgraph.splitfile.mdx
@@ -0,0 +1,89 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.splitfile package",
+  id: "splitgraph.splitfile package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphsplitfileexecution-module">splitgraph.splitfile.execution module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.splitfile">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.splitfile" title="Permalink to this headline">¶</a></h2>
+<p>Splitfile interpreter: a set of tools on top of the core Splitgraph versioning and image management to give
+the user a Dockerfile-like experience for building Splitgraph images (caching, consistent hashing, a declarative
+language).</p>
+</div><div className="section" id="splitgraph-splitfile-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.splitfile.execution">
+<span id="splitgraph-splitfile-execution-module"></span><h2 id="splitgraphsplitfileexecution-module">splitgraph.splitfile.execution module<a className="headerlink" href="#module-splitgraph.splitfile.execution" title="Permalink to this headline">¶</a></h2>
+<p>Functions for executing Splitfiles.</p>
+<dl className="py class">
+<dt id="splitgraph.splitfile.execution.ImageMapper">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">ImageMapper</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.get_provenance_data">
+<code className="sig-name descname">get_provenance_data</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.get_provenance_data" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.setup_lq_mounts">
+<code className="sig-name descname">setup_lq_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.setup_lq_mounts" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.teardown_lq_mounts">
+<code className="sig-name descname">teardown_lq_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.teardown_lq_mounts" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.execute_commands">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">execute_commands</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">commands</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">output</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.core/#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">output_base</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'00000000000000000000000000000000'</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.execute_commands" title="Permalink to this definition">¶</a></dt>
+<dd><p>Executes a series of Splitfile commands.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>commands</strong> – A string with the raw Splitfile.</p></li>
+<li><p><strong>params</strong> – A dictionary of parameters to be applied to the Splitfile (<cite>$&#38;lbrace;PARAM&#38;rbrace;</cite> is replaced with the specified
+parameter value).</p></li>
+<li><p><strong>output</strong> – Output repository to execute the Splitfile against.</p></li>
+<li><p><strong>output_base</strong> – If not None, a revision that gets checked out for all Splitfile actions to be committed
+on top of it.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.getrandbits">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.splitfile.execution.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.prevalidate_imports">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">prevalidate_imports</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_names</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table_queries</span><span className="p">:</span> <span className="n">List<span className="p">[</span>bool<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.splitfile.execution.prevalidate_imports" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.rebuild_image">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">rebuild_image</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n"><a className="reference internal" href="splitgraph.core/#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a></span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span><a className="reference internal" href="splitgraph.core/#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.rebuild_image" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreates the Splitfile used to create a given image and reruns it, replacing its dependencies with a different
+set of versions.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>image</strong> – Image object</p></li>
+<li><p><strong>source_replacement</strong> – A map that specifies replacement images/tags for repositories that the image depends on</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.2/metadata.json b/content/docs/9500_python-api/9000_versions/v0.2.2/metadata.json
new file mode 100644
index 00000000..ed1dc41b
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.2/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.2",
+  "updated_at": "2021-01-26T14:47:57.212Z",
+  "release": {
+    "id": 31385261,
+    "tag_name": "v0.2.2",
+    "target_commitish": "a1628dabe4d84b03494a3450ba275ab4f7e67b17",
+    "created_at": "2020-09-16T08:26:31Z",
+    "published_at": "2020-09-16T09:01:32Z",
+    "assets": [
+      {
+        "id": 25742983,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/25742983",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-09-16T08:51:37Z",
+        "updated_at": "2020-09-16T08:51:38Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.2/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.config.mdx b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.config.mdx
new file mode 100644
index 00000000..764a3f80
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.config.mdx
@@ -0,0 +1,337 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.config package",
+  id: "splitgraph.config package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigargument_config-module">splitgraph.config.argument_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigconfig-module">splitgraph.config.config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigconfig_file_config-module">splitgraph.config.config_file_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigdefault_config-module">splitgraph.config.default_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigenvironment_config-module">splitgraph.config.environment_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigkeys-module">splitgraph.config.keys module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigsystem_config-module">splitgraph.config.system_config module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.config">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.config" title="Permalink to this headline">¶</a></h2>
+<p>The CONFIG object is created and exported once __at import <a href="#id1"><span className="problematic" id="id2">time__</span></a>
+Calling CONFIG[“KEY”] directly should be sufficient in most cases,
+except when a config value has changed since importing CONFIG.
+In that case, create_config_dict() can provide an updated config dict</p>
+<p>Priority (highest to lowest):</p>
+<blockquote>
+<div><ol className="arabic simple">
+<li><p>Command line argument values</p></li>
+<li><p>Environment variable values</p></li>
+<li><p>Config file values in [defaults] section</p></li>
+<li><p>DEFAULTS (see keys.py)</p></li>
+</ol>
+</div></blockquote>
+</div><div className="section" id="splitgraph-config-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.config.argument_config">
+<span id="splitgraph-config-argument-config-module"></span><h2 id="splitgraphconfigargument_config-module">splitgraph.config.argument_config module<a className="headerlink" href="#module-splitgraph.config.argument_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.argument_config.get_arg_tuples">
+<code className="sig-prename descclassname">splitgraph.config.argument_config.</code><code className="sig-name descname">get_arg_tuples</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.argument_config.get_arg_tuples" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the raw (argN, argN+1) tuples from sys.argv</p>
+<p>We could also use click to parse the flags ahead of time, and then pass
+the parsed flag object into SystemConfigGetters. But this way, we avoid
+having to pass down variables from click just to get config values.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.argument_config.get_argument_config_value">
+<code className="sig-prename descclassname">splitgraph.config.argument_config.</code><code className="sig-name descname">get_argument_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.argument_config.get_argument_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get get the value of an argument, where value is the argument
+immediately following the argument matching a key in ARG_KEYS, e.g.:</p>
+<blockquote>
+<div><p>SYS_ARGS = [“–namespace”, “foo”]
+–> return “foo”</p>
+</div></blockquote>
+<p>Otherwise, return default_return</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.config">
+<span id="splitgraph-config-config-module"></span><h2 id="splitgraphconfigconfig-module">splitgraph.config.config module<a className="headerlink" href="#module-splitgraph.config.config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.config.chain_getters">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">chain_getters</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">getters</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Callable<span className="p">[</span><span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.chain_getters" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.create_config_dict">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">create_config_dict</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.create_config_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create and return a dict of all known config values</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_all_in_section">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_section" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get all subsections from a config (e.g. config[“mount_handlers”])</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_all_in_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_subsection" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_from_section">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_from_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_from_section" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_from_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_from_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_from_subsection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a singleton variable from a subsection of the config,
+e.g. config[“remotes”][“data.splitgraph.com”][“SG_ENGINE_HOST”]</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_singleton">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_singleton</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_singleton" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a singleton (not a section) variable from the config.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.lazy_get_config_value">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">lazy_get_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.lazy_get_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the config value for a key in the following precedence
+Otherwise return default_return</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.patch_config">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">patch_config</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">patch</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.patch_config" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recursively updates a nested configuration dictionary:</p>
+<dl className="simple">
+<dt>patch_config(</dt><dd><dl className="simple">
+<dt>&#38;lbrace;“key_1”: “value_1”,</dt><dd><p>“dict_1”: &#38;lbrace;“key_1”: “value_1”&#38;rbrace;&#38;rbrace;,</p>
+</dd>
+<dt>&#38;lbrace;“key_1”: “value_2”,</dt><dd><p>“dict_1”: &#38;lbrace;“key_2”: “value_2”&#38;rbrace;&#38;rbrace;) ==         &#38;lbrace;“key_1”: “value_2”,
+“dict_1”: &#38;lbrace;“key_1”: “value_1”, “key_2”: “value_2”&#38;rbrace;&#38;rbrace;</p>
+</dd>
+</dl>
+</dd>
+</dl>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>config</strong> – Config dictionary</p></li>
+<li><p><strong>patch</strong> – Dictionary with the path</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>New patched dictionary</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.set_in_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">set_in_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">value</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.config.config.set_in_subsection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set a singleton variable in a subsection of the config,
+e.g. config[“remotes”][“data.splitgraph.com”][“SG_ENGINE_HOST”]</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_arguments">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_arguments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_arguments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading sys.argv
+and overwriting any keys.</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_env_vars">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_env_vars</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_env_vars" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading os.environ
+and overwriting any keys.</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_file">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">sg_config_file</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading sg_config_file
+and overwriting any keys according to the rules in config_file_config</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.config_file_config">
+<span id="splitgraph-config-config-file-config-module"></span><h2 id="splitgraphconfigconfig_file_config-module">splitgraph.config.config_file_config module<a className="headerlink" href="#module-splitgraph.config.config_file_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.accumulate_lists">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">accumulate_lists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.accumulate_lists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Transform a <cite>config_dict</cite> to “accumulate” objects “nested” via key name</p>
+<p>Because  ConfigParser does not support nesting, we implement our own
+syntax via the key names of sections. The ‘:’ character can be used in
+section names to specify the left and right key. Example:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="o">.</span><span className="n">ini</span> <span className="n">config</span>             <span className="n">new</span> <span className="n">config_dict</span>
+
+                  <span className="o">-----></span>
+                    <span className="o">|</span>
+<span className="p">[</span><span className="n">remote</span><span className="p">:</span> <span className="n">remote1</span><span className="p">]</span>   <span className="o">|</span>   <span className="p">&#38;lbrace;</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">foo</span>      <span className="o">|</span>       <span className="o">**</span><span className="n">rest_of_config_dict</span><span className="p">,</span>
+                    <span className="o">|</span>       <span className="s2">"remotes"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+<span className="p">[</span><span className="n">origin</span><span className="p">:</span> <span className="n">origin1</span><span className="p">]</span>   <span className="o">|</span>           <span className="s2">"remote1"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">bar</span>      <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"foo"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;</span>
+<span className="p">[</span><span className="n">origin</span><span className="p">:</span> <span className="n">origin2</span><span className="p">]</span>   <span className="o">|</span>       <span className="p">&#38;rbrace;,</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">bax</span>      <span className="o">|</span>       <span className="s2">"origins"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>           <span className="s2">"origin1"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"bar"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;,</span>
+                    <span className="o">|</span>           <span className="s2">"origin2"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"bax"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>       <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>   <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>
+                  <span className="o">-----></span>
+</pre></div>
+</div>
+<p>:return a new, updated copy of <cite>config_dict</cite></p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.get_config_dict_from_config_file">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">get_config_dict_from_config_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sg_file</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.get_config_dict_from_config_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a dict from ConfigParser, apply transformations to it.</p>
+<p>Return parsed and transformed <cite>config_dict</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.get_config_dict_from_file">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">get_config_dict_from_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sg_file</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.get_config_dict_from_file" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.hoist_section">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">hoist_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'defaults'</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.hoist_section" title="Permalink to this definition">¶</a></dt>
+<dd><p>If a section exists called &lt;hoist_section>, hoist it to the top level
+This is useful for overriding default configs from within a config file</p>
+<p>Transform <cite>config_dict</cite> to “hoist” any config values from a section
+into the top level (thus, overriding environment variables),
+when the name of the section matches <cite>hoist_section</cite>.</p>
+<p>Return a new, updated copy of <cite>config_dict</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.transform_config_dict">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">transform_config_dict</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.transform_config_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply transformations to the raw ConfigParser.config object</p>
+<blockquote>
+<div><ol className="arabic simple">
+<li><p>hoist_section</p></li>
+<li><p>accumulate_lists</p></li>
+</ol>
+</div></blockquote>
+<p>Return the a new, updated copy of <cite>config_dict</cite>.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.default_config">
+<span id="splitgraph-config-default-config-module"></span><h2 id="splitgraphconfigdefault_config-module">splitgraph.config.default_config module<a className="headerlink" href="#module-splitgraph.config.default_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.default_config.get_default_config_value">
+<code className="sig-prename descclassname">splitgraph.config.default_config.</code><code className="sig-name descname">get_default_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.config.default_config.get_default_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the hard-coded default value of a config key.
+Otherwise return default_return.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.environment_config">
+<span id="splitgraph-config-environment-config-module"></span><h2 id="splitgraphconfigenvironment_config-module">splitgraph.config.environment_config module<a className="headerlink" href="#module-splitgraph.config.environment_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.environment_config.get_environment_config_value">
+<code className="sig-prename descclassname">splitgraph.config.environment_config.</code><code className="sig-name descname">get_environment_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.environment_config.get_environment_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the environment variable value of the environment variable matching key.
+Otherwise return default_return.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.keys">
+<span id="splitgraph-config-keys-module"></span><h2 id="splitgraphconfigkeys-module">splitgraph.config.keys module<a className="headerlink" href="#module-splitgraph.config.keys" title="Permalink to this headline">¶</a></h2>
+<dl className="py data">
+<dt id="splitgraph.config.keys.SENSITIVE_KEY_SUFFIXES">
+<code className="sig-prename descclassname">splitgraph.config.keys.</code><code className="sig-name descname">SENSITIVE_KEY_SUFFIXES</code><em className="property"> = ['_PWD', '_TOKEN']</em><a className="headerlink" href="#splitgraph.config.keys.SENSITIVE_KEY_SUFFIXES" title="Permalink to this definition">¶</a></dt>
+<dd><p>Warning: Every key in DEFAULTS must have a key in ARGUMENT_KEY_MAP
+If you add/remove keys from DEFAULTS, make sure to do so here too.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.system_config">
+<span id="splitgraph-config-system-config-module"></span><h2 id="splitgraphconfigsystem_config-module">splitgraph.config.system_config module<a className="headerlink" href="#module-splitgraph.config.system_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.system_config.file_exists">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">file_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">_dir</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">filename</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.config.system_config.file_exists" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_config_file">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_config_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_config_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the location of an existing SG_CONFIG_FILE on the system with
+a valid name. Do not attempt to parse the config file, just return
+its location.</p>
+<p>Otherwise, return default_return</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_explicit_config_file_dirs">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_explicit_config_file_dirs</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_explicit_config_file_dirs" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get any explicitly defined config file directories,
+which are directories where we should search for files from
+VALID_CONFIG_FILE_NAMES.</p>
+<p>This list is defined similar to $PATH, as a colon (:) delimited
+string, either in:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-dirs</p></li>
+<li><p>or environment key SG_CONFIG_DIRS</p></li>
+</ul>
+</div></blockquote>
+<p>Or a single directory defined in either</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-dir</p></li>
+<li><p>environment key SG_CONFIG_DIR</p></li>
+</ul>
+</div></blockquote>
+<p>If both plural and single are defined, join them together.</p>
+<p>Return a list of valid paths that are set, or an empty list.</p>
+<p>Print a warning if any paths to not exist.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_explicit_config_file_location">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_explicit_config_file_location</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_explicit_config_file_location" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the explicitly defined location of config file, if defined.</p>
+<p>The location will either be defined in:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-file</p></li>
+<li><p>or environment key SG_CONFIG_FILE</p></li>
+</ul>
+</div></blockquote>
+<p>In keeping with assumptions about priority, argument flag has
+higher priority than environment value.</p>
+<p>If the location is set, and points to an existing file, return location.</p>
+<p>Otherwise return None</p>
+<p>Print a warning if location is set but points to non-existing file.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_system_config_value">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_system_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_system_config_value" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.is_file">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">is_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">filename</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.config.system_config.is_file" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.core.mdx b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.core.mdx
new file mode 100644
index 00000000..faef8b81
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.core.mdx
@@ -0,0 +1,1066 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.core package",
+  id: "splitgraph.core package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreengine-module">splitgraph.core.engine module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreimage-module">splitgraph.core.image module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreobject_manager-module">splitgraph.core.object_manager module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreregistry-module">splitgraph.core.registry module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcorerepository-module">splitgraph.core.repository module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoretable-module">splitgraph.core.table module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.core">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.core" title="Permalink to this headline">¶</a></h2>
+<p>Core Splitgraph functionality: versioning and sharing tables.</p>
+<p>The main point of interaction with the Splitgraph API is a <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.repository.Repository</span></code></a> object
+representing a local or a remote Splitgraph repository. Repositories can be created using one of the
+following methods:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>Directly by invoking <cite>Repository(namespace, name, engine)</cite> where <cite>engine</cite> is the engine that the repository
+belongs to (that can be gotten with <cite>get_engine(engine_name)</cite>. If the created repository doesn’t actually exist
+on the engine, it must first be initialized with <cite>repository.init()</cite>.</p></li>
+<li><p>By using <a className="reference internal" href="#splitgraph.core.engine.lookup_repository" title="splitgraph.core.engine.lookup_repository"><code className="xref py py-func docutils literal notranslate"><span className="pre">splitgraph.core.engine.lookup_repository()</span></code></a> which will search for the repository on the current
+lookup path.</p></li>
+</ul>
+</div></blockquote>
+</div><div className="section" id="splitgraph-core-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.core.engine">
+<span id="splitgraph-core-engine-module"></span><h2 id="splitgraphcoreengine-module">splitgraph.core.engine module<a className="headerlink" href="#module-splitgraph.core.engine" title="Permalink to this headline">¶</a></h2>
+<p>Routines for managing Splitgraph engines, including looking up repositories and managing objects.</p>
+<dl className="py function">
+<dt id="splitgraph.core.engine.get_current_repositories">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">get_current_repositories</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Repository<span className="p">, </span>Optional<span className="p">[</span>Image<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.engine.get_current_repositories" title="Permalink to this definition">¶</a></dt>
+<dd><p>Lists all repositories currently in the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of (Repository object, current HEAD image)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.init_engine">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">init_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">skip_object_handling</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.engine.init_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes the engine by:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>performing any required engine-custom initialization</p></li>
+<li><p>creating the metadata tables</p></li>
+</ul>
+</div></blockquote>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>skip_object_handling</strong> – If True, skips installing routines related to
+object handling and checkouts (like audit triggers and CStore management).</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.lookup_repository">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">lookup_repository</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">include_local</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Repository<a className="headerlink" href="#splitgraph.core.engine.lookup_repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Queries the SG engines on the lookup path to locate one hosting the given repository.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>name</strong> – Repository name</p></li>
+<li><p><strong>include_local</strong> – If True, also queries the local engine</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Local or remote Repository object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.repository_exists">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">repository_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.engine.repository_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks if a repository exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>repository</strong> – Repository object</p>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.image">
+<span id="splitgraph-core-image-module"></span><h2 id="splitgraphcoreimage-module">splitgraph.core.image module<a className="headerlink" href="#module-splitgraph.core.image" title="Permalink to this headline">¶</a></h2>
+<p>Image representation and provenance</p>
+<dl className="py class">
+<dt id="splitgraph.core.image.Image">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">Image</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">parent_id</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">created</span><span className="p">:</span> <span className="n">datetime.datetime</span></em>, <em className="sig-param"><span className="n">comment</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.image.Image" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">tuple</span></code></p>
+<p>Represents a Splitgraph image. Should’t be created directly, use Image-loading methods in the
+<a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.repository.Repository</span></code></a> class instead.</p>
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.checkout">
+<code className="sig-name descname">checkout</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">force</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">layered</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.checkout" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks the image out, changing the current HEAD pointer. Raises an error
+if there are pending changes to its checkout.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>force</strong> – Discards all pending changes to the schema.</p></li>
+<li><p><strong>layered</strong> – If True, uses layered querying to check out the image (doesn’t materialize tables
+inside of it).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.comment">
+<em className="property">property </em><code className="sig-name descname">comment</code><a className="headerlink" href="#splitgraph.core.image.Image.comment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 3</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.created">
+<em className="property">property </em><code className="sig-name descname">created</code><a className="headerlink" href="#splitgraph.core.image.Image.created" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 2</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.delete_tag">
+<code className="sig-name descname">delete_tag</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tag</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.delete_tag" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes a tag from an image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tag</strong> – Tag to delete.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.engine">
+<em className="property">property </em><code className="sig-name descname">engine</code><a className="headerlink" href="#splitgraph.core.image.Image.engine" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_log">
+<code className="sig-name descname">get_log</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_log" title="Permalink to this definition">¶</a></dt>
+<dd><p>Repeatedly gets the parent of a given image until it reaches the bottom.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_parent_children">
+<code className="sig-name descname">get_parent_children</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Tuple<span className="p">[</span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_parent_children" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets the parent and a list of children of a given image.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.image.Image.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the image’s objects (including those that might be
+shared with other images).</p>
+<p>This is calculated from the metadata, the on-disk footprint might be smaller if not all of image’s
+objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the image in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_table">
+<code className="sig-name descname">get_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.table.Table" title="splitgraph.core.table.Table">splitgraph.core.table.Table</a><a className="headerlink" href="#splitgraph.core.image.Image.get_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a Table object representing a version of a given table.
+Contains a list of objects that the table is linked to and the table’s schema.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>table_name</strong> – Name of the table</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Table object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_tables">
+<code className="sig-name descname">get_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets the names of all tables inside of an image.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_tags">
+<code className="sig-name descname">get_tags</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.image.Image.get_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Lists all tags that this image has.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.image_hash">
+<em className="property">property </em><code className="sig-name descname">image_hash</code><a className="headerlink" href="#splitgraph.core.image.Image.image_hash" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 0</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.object_engine">
+<em className="property">property </em><code className="sig-name descname">object_engine</code><a className="headerlink" href="#splitgraph.core.image.Image.object_engine" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.parent_id">
+<em className="property">property </em><code className="sig-name descname">parent_id</code><a className="headerlink" href="#splitgraph.core.image.Image.parent_id" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 1</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.provenance">
+<code className="sig-name descname">provenance</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reverse</span><span className="o">=</span><span className="default_value">False</span></em>, <em className="sig-param"><span className="n">engine</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.provenance" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inspects the image’s parent chain to come up with a set of repositories and their hashes
+that it was created from.</p>
+<p>If <cite>reverse</cite> is True, returns a list of images that were created _from_ this image. If
+this image is on a remote repository, <cite>engine</cite> can be passed in to override the engine
+used for the lookup of dependents.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>List of (repository, image_hash)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.provenance_data">
+<em className="property">property </em><code className="sig-name descname">provenance_data</code><a className="headerlink" href="#splitgraph.core.image.Image.provenance_data" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 4</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.query_schema">
+<code className="sig-name descname">query_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.query_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a temporary schema with tables in this image mounted as foreign tables that can be accessed via
+read-only layered querying. On exit from the context manager, the schema is discarded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>The name of the schema the image is located in.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.repository">
+<em className="property">property </em><code className="sig-name descname">repository</code><a className="headerlink" href="#splitgraph.core.image.Image.repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 5</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.set_provenance">
+<code className="sig-name descname">set_provenance</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.set_provenance" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets the image’s provenance. Internal function called by the Splitfile interpreter, shouldn’t
+be called directly as it changes the image after it’s been created.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>provenance_data</strong> – List of parsed Splitfile commands and their data.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.tag">
+<code className="sig-name descname">tag</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tag</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.tag" title="Permalink to this definition">¶</a></dt>
+<dd><p>Tags a given image. All tags are unique inside of a repository. If a tag already exists, it’s removed
+from the previous image and given to the new image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tag</strong> – Tag to set. ‘latest’ and ‘HEAD’ are reserved tags.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.to_splitfile">
+<code className="sig-name descname">to_splitfile</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">ignore_irreproducible</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.to_splitfile" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreate the Splitfile that can be used to reconstruct this image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>ignore_irreproducible</strong> – If True, ignore commands from irreproducible Splitfile lines
+(like MOUNT or custom commands) and instead emit a comment (this results in an invalid Splitfile).</p></li>
+<li><p><strong>source_replacement</strong> – A dictionary of repositories and image hashes/tags specifying how to replace the
+dependencies of this Splitfile (table imports and FROM commands).</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of Splitfile commands that can be fed back into the executor.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.image.getrandbits">
+<code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.core.image.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.image.reconstruct_splitfile">
+<code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">reconstruct_splitfile</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">ignore_irreproducible</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.reconstruct_splitfile" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreate the Splitfile that can be used to reconstruct an image.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.object_manager">
+<span id="splitgraph-core-object-manager-module"></span><h2 id="splitgraphcoreobject_manager-module">splitgraph.core.object_manager module<a className="headerlink" href="#module-splitgraph.core.object_manager" title="Permalink to this headline">¶</a></h2>
+<p>Functions related to creating, deleting and keeping track of physical Splitgraph objects.</p>
+<dl className="py class">
+<dt id="splitgraph.core.object_manager.ObjectManager">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.object_manager.</code><code className="sig-name descname">ObjectManager</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">metadata_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>PostgresEngine<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.fragment_manager.FragmentManager</span></code></p>
+<p>Brings the multiple manager classes together and manages the object cache (downloading and uploading
+objects as required in order to fulfill certain queries)</p>
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.cleanup">
+<code className="sig-name descname">cleanup</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.cleanup" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes all objects in the object_tree not required by any current repository, including their dependencies and
+their remote locations. Also deletes all objects not registered in the object_tree.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">ObjectManager</a><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects_to_fetch</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">object_locations</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Fetches the required objects from the remote and stores them locally.
+Does nothing for objects that already exist.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>source</strong> – Remote ObjectManager. If None, will only try to download objects from the external location.</p></li>
+<li><p><strong>objects_to_fetch</strong> – List of object IDs to download.</p></li>
+<li><p><strong>object_locations</strong> – List of custom object locations, encoded as tuples (object_id, object_url, protocol).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.ensure_objects">
+<code className="sig-name descname">ensure_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Table<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">defer_release</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">tracer</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>splitgraph.core.common.Tracer<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">upstream_manager</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">ObjectManager</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Tuple<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>splitgraph.core.common.CallbackList<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.ensure_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Resolves the objects needed to materialize a given table and makes sure they are in the local
+splitgraph_meta schema.</p>
+<p>Whilst inside this manager, the objects are guaranteed to exist. On exit from it, the objects are marked as
+unneeded and can be garbage collected.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table</strong> – Table to materialize</p></li>
+<li><p><strong>objects</strong> – List of objects to download: one of table or objects must be specified.</p></li>
+<li><p><strong>quals</strong> – Optional list of qualifiers to be passed to the fragment engine. Fragments that definitely do
+not match these qualifiers will be dropped. See the docstring for <cite>filter_fragments</cite> for the format.</p></li>
+<li><p><strong>defer_release</strong> – If True, won’t release the objects on exit.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If defer_release is True: List of table fragments and a callback that the caller must call
+when the objects are no longer needed. If defer_release is False: just the list of table fragments.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_cache_occupancy">
+<code className="sig-name descname">get_cache_occupancy</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_cache_occupancy" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Space occupied by objects cached from external locations, in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_downloaded_objects">
+<code className="sig-name descname">get_downloaded_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">limit_to</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_downloaded_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets a list of objects currently in the Splitgraph cache (i.e. not only existing externally.)</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>limit_to</strong> – If specified, only the objects in this list will be returned.</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Set of object IDs.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_total_object_size">
+<code className="sig-name descname">get_total_object_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_total_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Space occupied by all objects on the engine, in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.make_objects_external">
+<code className="sig-name descname">make_objects_external</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.make_objects_external" title="Permalink to this definition">¶</a></dt>
+<dd><p>Uploads local objects to an external location and marks them as being cached locally (thus making it possible
+to evict or swap them out).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – Object IDs to upload. Will do nothing for objects that already exist externally.</p></li>
+<li><p><strong>handler</strong> – Object handler</p></li>
+<li><p><strong>handler_params</strong> – Extra handler parameters</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.run_eviction">
+<code className="sig-name descname">run_eviction</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">keep_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">required_space</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.run_eviction" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete enough objects with zero reference count (only those, since we guarantee that whilst refcount is >0,
+the object stays alive) to free at least <cite>required_space</cite> in the cache.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>keep_objects</strong> – List of objects (besides those with nonzero refcount) that can’t be deleted.</p></li>
+<li><p><strong>required_space</strong> – Space, in bytes, to free. If the routine can’t free at least this much space,
+it shall raise an exception. If None, removes all eligible objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">target</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a></span></em>, <em className="sig-param"><span className="n">objects_to_push</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Uploads physical objects to the remote or some other external location.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>target</strong> – Target ObjectManager</p></li>
+<li><p><strong>objects_to_push</strong> – List of object IDs to upload.</p></li>
+<li><p><strong>handler</strong> – Name of the handler to use to upload objects. Use <cite>DB</cite> to push them to the remote, <cite>FILE</cite>
+to store them in a directory that can be accessed from the client and <cite>HTTP</cite> to upload them to HTTP.</p></li>
+<li><p><strong>handler_params</strong> – For <cite>HTTP</cite>, a dictionary <cite>&#38;lbrace;“username”: username, “password”, password&#38;rbrace;</cite>. For <cite>FILE</cite>,
+a dictionary <cite>&#38;lbrace;“path”: path&#38;rbrace;</cite> specifying the directory where the objects shall be saved.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of (object_id, url) that specifies all objects were uploaded (skipping objects that
+already exist on the remote).</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.registry">
+<span id="splitgraph-core-registry-module"></span><h2 id="splitgraphcoreregistry-module">splitgraph.core.registry module<a className="headerlink" href="#module-splitgraph.core.registry" title="Permalink to this headline">¶</a></h2>
+<p>Functions for communicating with the remote Splitgraph catalog</p>
+<dl className="py function">
+<dt id="splitgraph.core.registry.get_info_key">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">get_info_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.registry.get_info_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets a configuration key from the remote registry, used to notify the client of the registry’s capabilities.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – Engine</p></li>
+<li><p><strong>key</strong> – Key to get</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.registry.set_info_key">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">set_info_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">value</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bool<span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.registry.set_info_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets a configuration value on the remote registry.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – Engine</p></li>
+<li><p><strong>key</strong> – Key to set</p></li>
+<li><p><strong>value</strong> – New value for the key</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.registry.setup_registry_mode">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">setup_registry_mode</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.registry.setup_registry_mode" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set up access policies/RLS:</p>
+<ul className="simple">
+<li><p>Normal users aren’t allowed to create tables/schemata (can’t do checkouts inside of a registry or
+upload SG objects directly to it)</p></li>
+<li><p>Normal users can’t access the splitgraph_meta schema directly: they’re only supposed to be able to
+talk to it via stored procedures in splitgraph_api. Those procedures are set up with SECURITY INVOKER
+(run with those users’ credentials) and what they can access is further restricted by RLS:</p>
+<ul>
+<li><p>images/tables/tags meta tables: can only create/update/delete records where the namespace = user ID</p></li>
+<li><p>objects/object_location tables: same. An object (piece of data) becomes owned by the user that creates
+it and still remains so even if someone else’s image starts using it. Hence, the original owner can delete
+or change it (since they control the external location they’ve uploaded it to anyway).</p></li>
+</ul>
+</li>
+</ul>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.repository">
+<span id="splitgraph-core-repository-module"></span><h2 id="splitgraphcorerepository-module">splitgraph.core.repository module<a className="headerlink" href="#module-splitgraph.core.repository" title="Permalink to this headline">¶</a></h2>
+<p>Public API for managing images in a Splitgraph repository.</p>
+<dl className="py class">
+<dt id="splitgraph.core.repository.Repository">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">Repository</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">namespace</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_manager</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.repository.Repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Splitgraph repository API</p>
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">comment</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">snap_only</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">chunk_size</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">split_changeset</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">extra_indexes</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">in_fragment_order</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><a className="headerlink" href="#splitgraph.core.repository.Repository.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commits all pending changes to a given repository, creating a new image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>image_hash</strong> – Hash of the commit. Chosen by random if unspecified.</p></li>
+<li><p><strong>comment</strong> – Optional comment to add to the commit.</p></li>
+<li><p><strong>snap_only</strong> – If True, will store the table as a full snapshot instead of delta compression</p></li>
+<li><p><strong>chunk_size</strong> – For tables that are stored as snapshots (new tables and where <cite>snap_only</cite> has been passed,
+the table will be split into fragments of this many rows.</p></li>
+<li><p><strong>split_changeset</strong> – If True, splits the changeset into multiple fragments based on
+the PK regions spanned by the current table fragments. For example, if the original table
+consists of 2 fragments, first spanning rows 1-10000, second spanning rows 10001-20000 and the
+change alters rows 1, 10001 and inserts a row with PK 20001, this will record the change as
+3 fragments: one inheriting from the first original fragment, one inheriting from the second
+and a brand new fragment. This increases the number of fragments in total but means that fewer rows
+will need to be scanned to satisfy a query.
+If False, the changeset will be stored as a single fragment inheriting from the last fragment in the
+table.</p></li>
+<li><p><strong>extra_indexes</strong> – Dictionary of &#38;lbrace;table: index_type: column: index_specific_kwargs&#38;rbrace;.</p></li>
+<li><p><strong>in_fragment_order</strong> – Dictionary of &#38;lbrace;table: list of columns&#38;rbrace;. If specified, will</p></li>
+</ul>
+</dd>
+</dl>
+<p>sort the data inside each chunk by this/these key(s) for each table.
+:param overwrite: If an object already exists, will force recreate it.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>The newly created Image object.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.commit_engines">
+<code className="sig-name descname">commit_engines</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.commit_engines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the underlying transactions on both engines that the repository uses.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.delete">
+<code className="sig-name descname">delete</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">unregister</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em>, <em className="sig-param"><span className="n">uncheckout</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.delete" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discards all changes to a given repository and optionally all of its history,
+as well as deleting the Postgres schema that it might be checked out into.
+Doesn’t delete any cached physical objects.</p>
+<p>After performing this operation, this object becomes invalid and must be discarded,
+unless init() is called again.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>unregister</strong> – Whether to purge repository history/metadata</p></li>
+<li><p><strong>uncheckout</strong> – Whether to delete the actual checked out repo. This has no effect
+if the repository is backed by a registry (rather than a local engine).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.diff">
+<code className="sig-name descname">diff</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image_1</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">image_2</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>Union<span className="p">[</span>bool<span className="p">, </span>Tuple<span className="p">[</span>int<span className="p">, </span>int<span className="p">, </span>int<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Tuple<span className="p">[</span>bool<span className="p">, </span>Tuple<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.diff" title="Permalink to this definition">¶</a></dt>
+<dd><p>Compares the state of a table in different images by materializing both tables into a temporary space
+and comparing them row-to-row.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table_name</strong> – Name of the table.</p></li>
+<li><p><strong>image_1</strong> – First image hash / object. If None, uses the state of the current staging area.</p></li>
+<li><p><strong>image_2</strong> – Second image hash / object. If None, uses the state of the current staging area.</p></li>
+<li><p><strong>aggregate</strong> – If True, returns a tuple of integers denoting added, removed and updated rows between
+the two images.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If the table doesn’t exist in one of the images, returns True if it was added and False if it was
+removed. If <cite>aggregate</cite> is True, returns the aggregation of changes as specified before.
+Otherwise, returns a list of changes where each change is a tuple of
+<cite>(True for added, False for removed, row contents)</cite>.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.dump">
+<code className="sig-name descname">dump</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">exclude_object_contents</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.dump" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates an SQL dump with the metadata required for the repository and all of its objects.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>stream</strong> – Stream to dump the data into.</p></li>
+<li><p><strong>exclude_object_contents</strong> – Only dump the metadata but not the actual object contents.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.from_schema">
+<em className="property">classmethod </em><code className="sig-name descname">from_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.from_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Convert a Postgres schema name of the format <cite>namespace/repository</cite> to a Splitgraph repository object.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.from_template">
+<em className="property">classmethod </em><code className="sig-name descname">from_template</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">template</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">namespace</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.from_template" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a Repository from an existing one replacing some of its attributes.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_all_hashes_tags">
+<code className="sig-name descname">get_all_hashes_tags</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.get_all_hashes_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets all tagged images and their hashes in a given repository.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>List of (image_hash, tag)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_local_size">
+<code className="sig-name descname">get_local_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.repository.Repository.get_local_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the actual size used by this repository’s downloaded objects.</p>
+<p>This might still be double-counted if the repository shares objects
+with other repositores.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the repository in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.repository.Repository.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the repository’s data, counting objects that are used
+by multiple images only once. This is calculated from the metadata, the on-disk
+footprint might be smaller if not all of repository’s objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the repository in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.repository.Repository.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Detects if the repository has any pending changes (schema changes, table additions/deletions, content changes).</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.head">
+<em className="property">property </em><code className="sig-name descname">head</code><a className="headerlink" href="#splitgraph.core.repository.Repository.head" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the HEAD image for the repository or None if the repository isn’t checked out.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.head_strict">
+<em className="property">property </em><code className="sig-name descname">head_strict</code><a className="headerlink" href="#splitgraph.core.repository.Repository.head_strict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the HEAD image for the repository. Raise an exception if the repository
+isn’t checked out.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.import_tables">
+<code className="sig-name descname">import_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">source_tables</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">foreign_tables</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">do_checkout</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">table_queries</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>bool<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">parent_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em>, <em className="sig-param"><span className="n">skip_validation</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.core.repository.Repository.import_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a new commit in target_repository with one or more tables linked to already-existing tables.
+After this operation, the HEAD of the target repository moves to the new commit and the new tables are
+materialized.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>tables</strong> – If not empty, must be the list of the same length as <cite>source_tables</cite> specifying names to store
+them under in the target repository.</p></li>
+<li><p><strong>source_repository</strong> – Repository to import tables from.</p></li>
+<li><p><strong>source_tables</strong> – List of tables to import. If empty, imports all tables.</p></li>
+<li><p><strong>image_hash</strong> – Image hash in the source repository to import tables from.
+Uses the current source HEAD by default.</p></li>
+<li><p><strong>foreign_tables</strong> – If True, copies all source tables to create a series of new snapshots instead of
+treating them as Splitgraph-versioned tables. This is useful for adding brand new tables
+(for example, from an FDW-mounted table).</p></li>
+<li><p><strong>do_checkout</strong> – If False, doesn’t check out the newly created image.</p></li>
+<li><p><strong>target_hash</strong> – Hash of the new image that tables is recorded under. If None, gets chosen at random.</p></li>
+<li><p><strong>table_queries</strong> – If not [], it’s treated as a Boolean mask showing which entries in the <cite>tables</cite> list are
+instead SELECT SQL queries that form the target table. The queries have to be non-schema qualified and work
+only against tables in the source repository. Each target table created is the result of the respective SQL
+query. This is committed as a new snapshot.</p></li>
+<li><p><strong>parent_hash</strong> – If not None, must be the hash of the image to base the new image on.
+Existing tables from the parent image are preserved in the new image. If None, the current repository
+HEAD is used.</p></li>
+<li><p><strong>wrapper</strong> – Override the default class for the layered querying foreign data wrapper.</p></li>
+<li><p><strong>skip_validation</strong> – Don’t validate SQL used in import statements (used by the Splitfile executor that pre-formats the SQL).</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Hash that the new image was stored under.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.init">
+<code className="sig-name descname">init</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.init" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes an empty repo with an initial commit (hash 0000…)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.materialized_table">
+<code className="sig-name descname">materialized_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.materialized_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>A context manager that returns a pointer to a read-only materialized table in a given image.
+The table is deleted on exit from the context manager.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table_name</strong> – Name of the table</p></li>
+<li><p><strong>image_hash</strong> – Image hash to materialize</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>(schema, table_name) where the materialized table is located.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.pull">
+<code className="sig-name descname">pull</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.pull" title="Permalink to this definition">¶</a></dt>
+<dd><p>Synchronizes the state of the local Splitgraph repository with its upstream, optionally downloading all new
+objects created on the remote.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>download_all</strong> – If True, downloads all objects and stores them locally. Otherwise, will only download
+required objects when a table is checked out.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the local repository for existing objects.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags.</p></li>
+<li><p><strong>single_image</strong> – Limit the download to a single image hash/tag.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.push">
+<code className="sig-name descname">push</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">reupload_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.push" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inverse of <code className="docutils literal notranslate"><span className="pre">pull</span></code>: Pushes all local changes to the remote and uploads new objects.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote repository to push changes to. If not specified, the current
+upstream is used.</p></li>
+<li><p><strong>handler</strong> – Name of the handler to use to upload objects. Use <cite>DB</cite> to push them to the remote or <cite>S3</cite>
+to store them in an S3 bucket.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the remote repository for existing objects.</p></li>
+<li><p><strong>reupload_objects</strong> – If True, will reupload objects for which metadata is uploaded.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags on the remote repository.</p></li>
+<li><p><strong>handler_options</strong> – Extra options to pass to the handler. For example, see
+<a className="reference internal" href="splitgraph.hooks/#splitgraph.hooks.s3.S3ExternalObjectHandler" title="splitgraph.hooks.s3.S3ExternalObjectHandler"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.hooks.s3.S3ExternalObjectHandler</span></code></a>.</p></li>
+<li><p><strong>single_image</strong> – Limit the upload to a single image hash/tag.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.rollback_engines">
+<code className="sig-name descname">rollback_engines</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.rollback_engines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the underlying transactions on both engines that the repository uses.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">sql: Union[psycopg2.sql.Composed, str], arguments: Optional[Any] = None, return_shape: splitgraph.engine.ResultShape = &lt;ResultShape.MANY_MANY: 4></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.core.repository.Repository.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute an arbitrary SQL statement inside of this repository’s checked out schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.set_tags">
+<code className="sig-name descname">set_tags</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tags</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.set_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets tags for multiple images.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tags</strong> – List of (image_hash, tag)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.to_schema">
+<code className="sig-name descname">to_schema</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.core.repository.Repository.to_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the engine schema that this repository gets checked out into.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.uncheckout">
+<code className="sig-name descname">uncheckout</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">force</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.uncheckout" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes the schema that the repository is checked out into</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>force</strong> – Discards all pending changes to the schema.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.upstream">
+<em className="property">property </em><code className="sig-name descname">upstream</code><a className="headerlink" href="#splitgraph.core.repository.Repository.upstream" title="Permalink to this definition">¶</a></dt>
+<dd><p>The remote upstream repository that this local repository tracks.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.clone">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">clone</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">local_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.clone" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clones a remote Splitgraph repository or synchronizes remote changes with the local ones.</p>
+<p>If the target repository has no set upstream engine, the source repository becomes its upstream.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote Repository object to clone or the repository’s name. If a name is passed,
+the repository will be looked up on the current lookup path in order to find the engine the repository
+belongs to.</p></li>
+<li><p><strong>local_repository</strong> – Local repository to clone into. If None, uses the same name as the remote.</p></li>
+<li><p><strong>download_all</strong> – If True, downloads all objects and stores them locally. Otherwise, will only download required
+objects when a table is checked out.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the local repository for existing objects.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags.</p></li>
+<li><p><strong>single_image</strong> – If set, only get a single image with this hash/tag from the source.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A locally cloned Repository object.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.getrandbits">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.core.repository.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.import_table_from_remote">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">import_table_from_remote</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">remote_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">target_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.import_table_from_remote" title="Permalink to this definition">¶</a></dt>
+<dd><p>Shorthand for importing one or more tables from a yet-uncloned remote. Here, the remote image hash is required,
+as otherwise we aren’t necessarily able to determine what the remote head is.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote Repository object</p></li>
+<li><p><strong>remote_tables</strong> – List of remote tables to import</p></li>
+<li><p><strong>remote_image_hash</strong> – Image hash to import the tables from</p></li>
+<li><p><strong>target_repository</strong> – Target repository to import the tables to</p></li>
+<li><p><strong>target_tables</strong> – Target table aliases</p></li>
+<li><p><strong>target_hash</strong> – Hash of the image that’s created with the import. Default random.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.table_exists_at">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">table_exists_at</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.repository.table_exists_at" title="Permalink to this definition">¶</a></dt>
+<dd><p>Determines whether a given table exists in a Splitgraph image without checking it out. If <cite>image_hash</cite> is None,
+determines whether the table exists in the current staging area.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.table">
+<span id="splitgraph-core-table-module"></span><h2 id="splitgraphcoretable-module">splitgraph.core.table module<a className="headerlink" href="#module-splitgraph.core.table" title="Permalink to this headline">¶</a></h2>
+<p>Table metadata-related classes.</p>
+<dl className="py class">
+<dt id="splitgraph.core.table.QueryPlan">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">QueryPlan</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.table.Table" title="splitgraph.core.table.Table">splitgraph.core.table.Table</a></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.QueryPlan" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Represents the initial query plan (fragments to query) for given columns and
+qualifiers.</p>
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.core.table.Table">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">Table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em>, <em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n">Image</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_schema</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.Table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Represents a Splitgraph table in a given image. Shouldn’t be created directly, use Table-loading
+methods in the <a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.image.Image</span></code></a> class instead.</p>
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_length">
+<code className="sig-name descname">get_length</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.table.Table.get_length" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the number of rows in this table.</p>
+<p>This might be smaller than the total number of rows in all objects belonging to this
+table as some objects might overwrite each other.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Number of rows in table</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_query_plan">
+<code className="sig-name descname">get_query_plan</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">use_cache</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.table.QueryPlan" title="splitgraph.core.table.QueryPlan">splitgraph.core.table.QueryPlan</a><a className="headerlink" href="#splitgraph.core.table.Table.get_query_plan" title="Permalink to this definition">¶</a></dt>
+<dd><p>Start planning a query (preliminary steps before object downloading,
+like qualifier filtering).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>quals</strong> – Qualifiers in CNF form</p></li>
+<li><p><strong>columns</strong> – List of columns</p></li>
+<li><p><strong>use_cache</strong> – If True, will fetch the plan from the cache for the same qualifiers and columns.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>QueryPlan</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.table.Table.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the table’s objects (including those shared with other tables).</p>
+<p>This is calculated from the metadata, the on-disk footprint might be smaller if not all of table’s
+objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the table in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.materialize">
+<code className="sig-name descname">materialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">destination</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">destination_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">lq_server</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.table.Table.materialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Materializes a Splitgraph table in the target schema as a normal Postgres table, potentially downloading all
+required objects and using them to reconstruct the table.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>destination</strong> – Name of the destination table.</p></li>
+<li><p><strong>destination_schema</strong> – Name of the destination schema.</p></li>
+<li><p><strong>lq_server</strong> – If set, sets up a layered querying FDW for the table instead using this foreign server.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query">
+<code className="sig-name descname">query</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.Table.query" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it.</p>
+<p>This is a wrapper around query_lazy() that force evaluates the results which
+might mean more fragments being materialized that aren’t needed.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of dictionaries of results</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query_indirect">
+<code className="sig-name descname">query_indirect</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Tuple<span className="p">[</span>Iterator<span className="p">[</span>bytes<span className="p">]</span><span className="p">, </span>Callable<span className="p">, </span><a className="reference internal" href="#splitgraph.core.table.QueryPlan" title="splitgraph.core.table.QueryPlan">splitgraph.core.table.QueryPlan</a><span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.query_indirect" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it. Instead of
+actual results, this returns a generator of SQL queries that the caller can use
+to get the results as well as a callback that the caller has to run after they’re
+done consuming the results.</p>
+<p>In particular, the query generator will prefer returning direct queries to
+Splitgraph objects and only when those are exhausted will it start materializing
+delta-compressed fragments.</p>
+<p>This is an advanced method: you probably want to call table.query().</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Generator of queries (bytes), a callback and a query plan object (containing stats
+that are fully populated after the callback has been called to end the query).</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query_lazy">
+<code className="sig-name descname">query_lazy</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Iterator<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.query_lazy" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Generator of dictionaries of results.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.reindex">
+<code className="sig-name descname">reindex</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">extra_indexes</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">raise_on_patch_objects</span><span className="o">=</span><span className="default_value">True</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.reindex" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run extra indexes on all objects in this table and update their metadata.
+This only works on objects that don’t have any deletions or upserts (have a deletion hash of 000000…).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>extra_indexes</strong> – Dictionary of &#38;lbrace;index_type: column: index_specific_kwargs&#38;rbrace;.</p></li>
+<li><p><strong>raise_on_patch_objects</strong> – If True, will raise an exception if any objects in the table
+overwrite any other objects. If False, will log a warning but will reindex all non-patch objects.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:returns List of objects that were reindexed.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.table.create_foreign_table">
+<code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">create_foreign_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">internal_table_name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.create_foreign_table" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.table.merge_index_data">
+<code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">merge_index_data</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">current_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">new_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.merge_index_data" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.engine.mdx b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.engine.mdx
new file mode 100644
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--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.engine.mdx
@@ -0,0 +1,553 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.engine package",
+  id: "splitgraph.engine package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#subpackages">Subpackages</a></li></ol></nav><div className="section" id="module-splitgraph.engine">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.engine" title="Permalink to this headline">¶</a></h2>
+<p>Defines the interface for a Splitgraph engine (a backing database), including running basic SQL commands,
+tracking tables for changes and uploading/downloading tables to other remote engines.</p>
+<p>By default, Splitgraph is backed by Postgres: see <a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres" title="splitgraph.engine.postgres"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.engine.postgres</span></code></a> for an example of how to
+implement a different engine.</p>
+<dl className="py class">
+<dt id="splitgraph.engine.ChangeEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ChangeEngine</code><a className="headerlink" href="#splitgraph.engine.ChangeEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.SQLEngine" title="splitgraph.engine.SQLEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.SQLEngine</span></code></a>, <code className="xref py py-class docutils literal notranslate"><span className="pre">abc.ABC</span></code></p>
+<p>An SQL engine that can perform change tracking on a set of tables.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.discard_pending_changes">
+<code className="sig-name descname">discard_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.discard_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discard recorded pending changes for a tracked table or the whole schema</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_change_key">
+<code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the key used to identify a row in a change (list of column name, column type).
+If the tracked table has a PK, we use that; if it doesn’t, the whole row is used.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_changed_tables">
+<code className="sig-name descname">get_changed_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_changed_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>List tracked tables that have pending changes</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>schema</strong> – Schema to check for changes</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of tables with changed contents</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_pending_changes">
+<code className="sig-name descname">get_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="o">=</span><span className="default_value">False</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return pending changes for a given tracked table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema the table belongs to</p></li>
+<li><p><strong>table</strong> – Table to return changes for</p></li>
+<li><p><strong>aggregate</strong> – Whether to aggregate changes or return them completely</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If aggregate is True: tuple with numbers of <cite>(added_rows, removed_rows, updated_rows)</cite>.
+If aggregate is False: A changeset. The changeset is a list of
+<cite>(pk, action (0 for Insert, 1 for Delete, 2 for Update), action_data)</cite>
+where <cite>action_data</cite> is <cite>None</cite> for Delete and <cite>&#38;lbrace;‘c’: [column_names], ‘v’: [column_values]&#38;rbrace;</cite> that
+have been inserted/updated otherwise.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_tracked_tables">
+<code className="sig-name descname">get_tracked_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_tracked_tables" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>A list of (table_schema, table_name) that the engine currently tracks for changes</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return True if the tracked schema has pending changes and False if it doesn’t.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.track_tables">
+<code className="sig-name descname">track_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.track_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Start engine-specific change tracking on a list of tables.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tables</strong> – List of (table_schema, table_name) to start tracking</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.untrack_tables">
+<code className="sig-name descname">untrack_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.untrack_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stop engine-specific change tracking on a list of tables and delete any pending changes.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tables</strong> – List of (table_schema, table_name) to start tracking</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.ObjectEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ObjectEngine</code><a className="headerlink" href="#splitgraph.engine.ObjectEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Routines for storing/applying objects as well as sharing them with other engines.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.apply_fragments">
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">target_schema</span></em>, <em className="sig-param"><span className="n">target_table</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_schema, object_table)</cite> that the objects are stored in.</p></li>
+<li><p><strong>target_schema</strong> – Schema to apply the fragment to</p></li>
+<li><p><strong>target_table</strong> – Table to apply the fragment to</p></li>
+<li><p><strong>extra_quals</strong> – Optional, extra SQL (Composable) clauses to filter new rows in the fragment on
+(e.g. SQL(“a = %s”))</p></li>
+<li><p><strong>extra_qual_args</strong> – Optional, a tuple of arguments to use with <cite>extra_quals</cite></p></li>
+<li><p><strong>schema_spec</strong> – Optional, list of (ordinal, column_name, column_type, is_pk).
+If not specified, uses the schema of target_table.</p></li>
+<li><p><strong>progress_every</strong> – If set, will report the materialization progress via
+tqdm every <cite>progress_every</cite> objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.delete_objects">
+<code className="sig-name descname">delete_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.delete_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete one or more objects from the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_ids</strong> – IDs of objects to delete</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">remote_engine</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the remote engine to the local cache</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to download</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to download the objects from.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:return List of object IDs that were downloaded.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.dump_object">
+<code className="sig-name descname">dump_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em>, <em className="sig-param"><span className="n">stream</span></em>, <em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.dump_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump an object into a series of SQL statements</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Object ID</p></li>
+<li><p><strong>stream</strong> – Text stream to dump the object into</p></li>
+<li><p><strong>schema</strong> – Schema the object lives in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.get_object_schema">
+<code className="sig-name descname">get_object_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.get_object_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the schema of a given object, returned as a list of
+(ordinal, column_name, column_type, is_pk).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_id</strong> – ID of the object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.get_object_size">
+<code className="sig-name descname">get_object_size</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.get_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the on-disk footprint of this object, in bytes
+:param object_id: ID of the object</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.store_fragment">
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span></em>, <em className="sig-param"><span className="n">deleted</span></em>, <em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">source_schema</span></em>, <em className="sig-param"><span className="n">source_table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Store a fragment of a changed table in another table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>inserted</strong> – List of PKs that have been updated/inserted</p></li>
+<li><p><strong>deleted</strong> – List of PKs that have been deleted</p></li>
+<li><p><strong>schema</strong> – Schema to store the change in</p></li>
+<li><p><strong>table</strong> – Table to store the change in</p></li>
+<li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
+<li><p><strong>source_table</strong> – Name of the source table</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.store_object">
+<code className="sig-name descname">store_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_query</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bytes<span className="p">, </span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">, </span>psycopg2.sql.SQL<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_query_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Any<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stores a Splitgraph object using a source query in the actual format
+implemented by this engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>source_query</strong> – SELECT query that produces data required by the object</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the source table</p></li>
+<li><p><strong>source_query_args</strong> – Arguments to mogrify into the source query.</p></li>
+<li><p><strong>overwrite</strong> – If True, will overwrite the object if it already exists.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">remote_engine</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the local cache to the remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to upload the objects to.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.ResultShape">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ResultShape</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">value</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ResultShape" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">enum.Enum</span></code></p>
+<p>Shape that the result of a query will be coerced to</p>
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.MANY_MANY">
+<code className="sig-name descname">MANY_MANY</code><em className="property"> = 4</em><a className="headerlink" href="#splitgraph.engine.ResultShape.MANY_MANY" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.MANY_ONE">
+<code className="sig-name descname">MANY_ONE</code><em className="property"> = 3</em><a className="headerlink" href="#splitgraph.engine.ResultShape.MANY_ONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.NONE">
+<code className="sig-name descname">NONE</code><em className="property"> = 0</em><a className="headerlink" href="#splitgraph.engine.ResultShape.NONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.ONE_MANY">
+<code className="sig-name descname">ONE_MANY</code><em className="property"> = 2</em><a className="headerlink" href="#splitgraph.engine.ResultShape.ONE_MANY" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.ONE_ONE">
+<code className="sig-name descname">ONE_ONE</code><em className="property"> = 1</em><a className="headerlink" href="#splitgraph.engine.ResultShape.ONE_ONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.SQLEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">SQLEngine</code><a className="headerlink" href="#splitgraph.engine.SQLEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">abc.ABC</span></code></p>
+<p>Abstraction for a Splitgraph SQL backend. Requires any overriding classes to implement <cite>run_sql</cite> as well as
+a few other functions. Together with the <cite>information_schema</cite> (part of the SQL standard), this class uses those
+functions to implement some basic database management methods like listing, deleting, creating, dumping
+and loading tables.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.close">
+<code className="sig-name descname">close</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.close" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit and close the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.copy_table">
+<code className="sig-name descname">copy_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">with_pk_constraints</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.copy_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Copy a table in the same engine, optionally applying primary key constraints as well.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.create_schema">
+<code className="sig-name descname">create_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.create_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a schema if it doesn’t exist</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.create_table">
+<code className="sig-name descname">create_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">unlogged</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">include_comments</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.create_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a table using a previously-dumped table schema spec</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Table name to create</p></li>
+<li><p><strong>schema_spec</strong> – TableSchema</p></li>
+<li><p><strong>unlogged</strong> – If True, the table won’t be reflected in the WAL or scanned by the analyzer/autovacuum.</p></li>
+<li><p><strong>temporary</strong> – If True, a temporary table is created (the schema parameter is ignored)</p></li>
+<li><p><strong>include_comments</strong> – If True, also adds COMMENT statements for columns that have them.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.delete_schema">
+<code className="sig-name descname">delete_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.delete_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete a schema if it exists, including all the tables in it.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.delete_table">
+<code className="sig-name descname">delete_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.delete_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Drop a table from a schema if it exists</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.dump_table_creation">
+<em className="property">static </em><code className="sig-name descname">dump_table_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">unlogged</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">include_comments</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Tuple<span className="p">[</span>psycopg2.sql.Composed<span className="p">, </span>Tuple<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.dump_table_creation" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dumps the DDL for a table using a previously-dumped table schema spec</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Table name to create</p></li>
+<li><p><strong>schema_spec</strong> – TableSchema</p></li>
+<li><p><strong>unlogged</strong> – If True, the table won’t be reflected in the WAL or scanned by the analyzer/autovacuum.</p></li>
+<li><p><strong>temporary</strong> – If True, a temporary table is created (the schema parameter is ignored)</p></li>
+<li><p><strong>include_comments</strong> – If True, also adds COMMENT statements for columns that have them.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>An SQL statement that reconstructs the table schema + args to be mogrified into it.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.dump_table_sql">
+<code className="sig-name descname">dump_table_sql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table_name</span></em>, <em className="sig-param"><span className="n">stream</span></em>, <em className="sig-param"><span className="n">columns</span><span className="o">=</span><span className="default_value">'*'</span></em>, <em className="sig-param"><span className="n">where</span><span className="o">=</span><span className="default_value">''</span></em>, <em className="sig-param"><span className="n">where_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.dump_table_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump the table contents in the SQL format
+:param schema: Schema the table is located in
+:param table_name: Name of the table
+:param stream: A file-like object to write the result into.
+:param columns: SQL column spec. Default ‘*’.
+:param where: Optional, an SQL WHERE clause
+:param where_args: Arguments for the optional WHERE clause.
+:param target_schema: Schema to create the table in (default same as <cite>schema</cite>)
+:param target_table: Name of the table to insert data into (default same as <cite>table_name</cite>)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_all_tables">
+<code className="sig-name descname">get_all_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_all_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get all tables in a given schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_full_table_schema">
+<code className="sig-name descname">get_full_table_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_full_table_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Generates a list of (column ordinal, name, data type, is_pk, column comment),
+used to detect schema changes like columns being dropped/added/renamed or type changes.</p>
+<p>NB this doesn’t work for temporary tables (pg_temp) and returns an empty schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_primary_keys">
+<code className="sig-name descname">get_primary_keys</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_primary_keys" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a list of (column_name, column_type) denoting the primary keys of a given table.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_table_type">
+<code className="sig-name descname">get_table_type</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_table_type" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the type of the table (BASE or FOREIGN)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.initialize">
+<code className="sig-name descname">initialize</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.initialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Does any required initialization of the engine</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.lock_table">
+<code className="sig-name descname">lock_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.lock_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Acquire an exclusive lock on a given table, released when the transaction commits / rolls back.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.rollback">
+<code className="sig-name descname">rollback</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.rollback" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">statement</em>, <em className="sig-param">arguments=None</em>, <em className="sig-param">return_shape=&lt;ResultShape.MANY_MANY: 4></em>, <em className="sig-param">named=False</em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an arbitrary SQL statement with some arguments, return an iterator of results.
+If the statement doesn’t return any results, return None. If named=True, return named
+tuples when possible.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql_batch">
+<code className="sig-name descname">run_sql_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">statement</span></em>, <em className="sig-param"><span className="n">arguments</span></em>, <em className="sig-param"><span className="n">schema</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql_batch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a parameterized SQL statement against multiple sets of arguments.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>statement</strong> – Statement to run</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>schema</strong> – Schema to run the statement in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql_in">
+<code className="sig-name descname">run_sql_in</code><span className="sig-paren">(</span><em className="sig-param">schema: str, sql: Union[psycopg2.sql.Composed, str], arguments: None = None, return_shape: splitgraph.engine.ResultShape = &lt;ResultShape.MANY_MANY: 4></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql_in" title="Permalink to this definition">¶</a></dt>
+<dd><p>Executes a non-schema-qualified query against a specific schema.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to run the query in</p></li>
+<li><p><strong>sql</strong> – Query</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>return_shape</strong> – ReturnShape to coerce the result into.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.savepoint">
+<code className="sig-name descname">savepoint</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>None<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.savepoint" title="Permalink to this definition">¶</a></dt>
+<dd><p>At the beginning of this context manager, a savepoint is initialized and any database
+error that occurs in run_sql results in a rollback to this savepoint rather than the
+rollback of the whole transaction. At exit, the savepoint is released.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.schema_exists">
+<code className="sig-name descname">schema_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.SQLEngine.schema_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if a schema exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>schema</strong> – Schema name</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.table_exists">
+<code className="sig-name descname">table_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.SQLEngine.table_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if a table exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema name</p></li>
+<li><p><strong>table_name</strong> – Table name</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.get_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">get_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">use_socket</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">use_fdw_params</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → PostgresEngine<a className="headerlink" href="#splitgraph.engine.get_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the current global engine or a named remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>name</strong> – Name of the remote engine as specified in the config. If None, the current global engine
+is returned.</p></li>
+<li><p><strong>use_socket</strong> – Use a local UNIX socket instead of PG_HOST, PG_PORT for LOCAL engine connections.</p></li>
+<li><p><strong>use_fdw_params</strong> – Use the _FDW connection parameters (SG_ENGINE_FDW_HOST/PORT). By default,
+will infer from the global splitgraph.config.IN_FDW flag.</p></li>
+<li><p><strong>autocommit</strong> – If True, the engine will not open SQL transactions implicitly.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.set_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">set_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.set_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Switch the global engine to a different one.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.switch_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">switch_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>None<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.switch_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Switch the global engine to a different one. The engine will
+get switched back on exit from the context manager.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+</dl>
+</dd></dl>
+
+</div><div className="section" id="splitgraph-engine-package">
+
+<div className="section" id="subpackages">
+<h2 id="subpackages">Subpackages<a className="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
+<div className="toctree-wrapper compound">
+<ul>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.engine.postgres/">splitgraph.engine.postgres package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres.engine">splitgraph.engine.postgres.engine module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.engine.postgres.mdx b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.engine.postgres.mdx
new file mode 100644
index 00000000..fac9f4c5
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.engine.postgres.mdx
@@ -0,0 +1,443 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.engine.postgres package",
+  id: "splitgraph.engine.postgres package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphenginepostgresengine-module">splitgraph.engine.postgres.engine module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.engine.postgres">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.engine.postgres" title="Permalink to this headline">¶</a></h2>
+</div><div className="section" id="splitgraph-engine-postgres-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.engine.postgres.engine">
+<span id="splitgraph-engine-postgres-engine-module"></span><h2 id="splitgraphenginepostgresengine-module">splitgraph.engine.postgres.engine module<a className="headerlink" href="#module-splitgraph.engine.postgres.engine" title="Permalink to this headline">¶</a></h2>
+<p>Default Splitgraph engine: uses PostgreSQL to store metadata and actual objects and an audit stored procedure
+to track changes, as well as the Postgres FDW interface to upload/download objects to/from other Postgres engines.</p>
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">AuditTriggerChangeEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.postgres.engine.PsycopgEngine" title="splitgraph.engine.postgres.engine.PsycopgEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.postgres.engine.PsycopgEngine</span></code></a>, <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.ChangeEngine" title="splitgraph.engine.ChangeEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.ChangeEngine</span></code></a></p>
+<p>Change tracking based on an audit trigger stored procedure</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.discard_pending_changes">
+<code className="sig-name descname">discard_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.discard_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discard recorded pending changes for a tracked schema / table</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_changed_tables">
+<code className="sig-name descname">get_changed_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_changed_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get list of tables that have changed content</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_pending_changes">
+<code className="sig-name descname">get_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Union<span className="p">[</span>List<span className="p">[</span>Tuple<span className="p">[</span>int<span className="p">, </span>int<span className="p">]</span><span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Tuple<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span><span className="p">…</span><span className="p">]</span><span className="p">, </span>bool<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return pending changes for a given tracked table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema the table belongs to</p></li>
+<li><p><strong>table</strong> – Table to return changes for</p></li>
+<li><p><strong>aggregate</strong> – Whether to aggregate changes or return them completely</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If aggregate is True: List of tuples of (change_type, number of rows).
+If aggregate is False: List of (primary_key, change_type, change_data)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_tracked_tables">
+<code className="sig-name descname">get_tracked_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_tracked_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a list of tables that the audit trigger is working on.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return True if the tracked schema has pending changes and False if it doesn’t.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.track_tables">
+<code className="sig-name descname">track_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.track_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Install the audit trigger on the required tables</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.untrack_tables">
+<code className="sig-name descname">untrack_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.untrack_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Remove triggers from tables and delete their pending changes</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">PostgresEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine" title="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.postgres.engine.AuditTriggerChangeEngine</span></code></a>, <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.ObjectEngine" title="splitgraph.engine.ObjectEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.ObjectEngine</span></code></a></p>
+<p>An implementation of the Postgres engine for Splitgraph</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments">
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.sql.Composed<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_schema, object_table)</cite> that the objects are stored in.</p></li>
+<li><p><strong>target_schema</strong> – Schema to apply the fragment to</p></li>
+<li><p><strong>target_table</strong> – Table to apply the fragment to</p></li>
+<li><p><strong>extra_quals</strong> – Optional, extra SQL (Composable) clauses to filter new rows in the fragment on
+(e.g. SQL(“a = %s”))</p></li>
+<li><p><strong>extra_qual_args</strong> – Optional, a tuple of arguments to use with <cite>extra_quals</cite></p></li>
+<li><p><strong>schema_spec</strong> – Optional, list of (ordinal, column_name, column_type, is_pk).
+If not specified, uses the schema of target_table.</p></li>
+<li><p><strong>progress_every</strong> – If set, will report the materialization progress via
+tqdm every <cite>progress_every</cite> objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.delete_objects">
+<code className="sig-name descname">delete_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.delete_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete one or more objects from the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_ids</strong> – IDs of objects to delete</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the remote engine to the local cache</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to download</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to download the objects from.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:return List of object IDs that were downloaded.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object">
+<code className="sig-name descname">dump_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump an object into a series of SQL statements</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Object ID</p></li>
+<li><p><strong>stream</strong> – Text stream to dump the object into</p></li>
+<li><p><strong>schema</strong> – Schema the object lives in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation">
+<code className="sig-name descname">dump_object_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">if_not_exists</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → bytes<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation" title="Permalink to this definition">¶</a></dt>
+<dd><p>Generate the SQL that remounts a foreign table pointing to a Splitgraph object.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Name of the table to mount</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the table</p></li>
+<li><p><strong>if_not_exists</strong> – Add IF NOT EXISTS to the DDL</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>SQL in bytes format.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_change_key">
+<code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the key used to identify a row in a change (list of column name, column type).
+If the tracked table has a PK, we use that; if it doesn’t, the whole row is used.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_object_schema">
+<code className="sig-name descname">get_object_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_object_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the schema of a given object, returned as a list of
+(ordinal, column_name, column_type, is_pk).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_id</strong> – ID of the object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_object_size">
+<code className="sig-name descname">get_object_size</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the on-disk footprint of this object, in bytes
+:param object_id: ID of the object</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.mount_object">
+<code className="sig-name descname">mount_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_meta'</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.mount_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount an object from local storage as a foreign table.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – ID of the object</p></li>
+<li><p><strong>table</strong> – Table to mount the object into</p></li>
+<li><p><strong>schema</strong> – Schema to mount the object into</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the object.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.rename_object">
+<code className="sig-name descname">rename_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">old_object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">new_object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.rename_object" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_fragment">
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">deleted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Store a fragment of a changed table in another table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>inserted</strong> – List of PKs that have been updated/inserted</p></li>
+<li><p><strong>deleted</strong> – List of PKs that have been deleted</p></li>
+<li><p><strong>schema</strong> – Schema to store the change in</p></li>
+<li><p><strong>table</strong> – Table to store the change in</p></li>
+<li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
+<li><p><strong>source_table</strong> – Name of the source table</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_object">
+<code className="sig-name descname">store_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_query</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bytes<span className="p">, </span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">, </span>psycopg2.sql.SQL<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_query_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="o">=</span><span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stores a Splitgraph object using a source query in the actual format
+implemented by this engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>source_query</strong> – SELECT query that produces data required by the object</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the source table</p></li>
+<li><p><strong>source_query_args</strong> – Arguments to mogrify into the source query.</p></li>
+<li><p><strong>overwrite</strong> – If True, will overwrite the object if it already exists.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.sync_object_mounts">
+<code className="sig-name descname">sync_object_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.sync_object_mounts" title="Permalink to this definition">¶</a></dt>
+<dd><p>Scan through local object storage and synchronize it with the foreign tables in
+splitgraph_meta (unmounting non-existing objects and mounting existing ones).</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.unmount_objects">
+<code className="sig-name descname">unmount_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.unmount_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Unmount objects from splitgraph_meta (this doesn’t delete the physical files.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the local cache to the remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to upload the objects to.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">PsycopgEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.SQLEngine" title="splitgraph.engine.SQLEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.SQLEngine</span></code></a></p>
+<p>Postgres SQL engine backed by a Psycopg connection.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.close">
+<code className="sig-name descname">close</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.close" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit and close the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.close_others">
+<code className="sig-name descname">close_others</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.close_others" title="Permalink to this definition">¶</a></dt>
+<dd><p>Close and release all other connections to the connection pool.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.connection">
+<em className="property">property </em><code className="sig-name descname">connection</code><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.connection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Engine-internal Psycopg connection.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.delete_database">
+<code className="sig-name descname">delete_database</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">database</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.delete_database" title="Permalink to this definition">¶</a></dt>
+<dd><p>Helper function to drop a database using the admin connection</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>database</strong> – Database name to drop</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.dump_table_sql">
+<code className="sig-name descname">dump_table_sql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'*'</span></em>, <em className="sig-param"><span className="n">where</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">''</span></em>, <em className="sig-param"><span className="n">where_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.dump_table_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump the table contents in the SQL format
+:param schema: Schema the table is located in
+:param table_name: Name of the table
+:param stream: A file-like object to write the result into.
+:param columns: SQL column spec. Default ‘*’.
+:param where: Optional, an SQL WHERE clause
+:param where_args: Arguments for the optional WHERE clause.
+:param target_schema: Schema to create the table in (default same as <cite>schema</cite>)
+:param target_table: Name of the table to insert data into (default same as <cite>table_name</cite>)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.get_primary_keys">
+<code className="sig-name descname">get_primary_keys</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.get_primary_keys" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inspects the Postgres information_schema to get the primary keys for a given table.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.initialize">
+<code className="sig-name descname">initialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">skip_object_handling</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">skip_create_database</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.initialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create the Splitgraph Postgres database and install the audit trigger</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>skip_object_handling</strong> – If True, skips installation of
+audit triggers and other object management routines for engines
+that don’t need change tracking or checkouts.</p></li>
+<li><p><strong>skip_create_database</strong> – Don’t create the Splitgraph database</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.lock_table">
+<code className="sig-name descname">lock_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.lock_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Acquire an exclusive lock on a given table, released when the transaction commits / rolls back.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.rollback">
+<code className="sig-name descname">rollback</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.rollback" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call">
+<code className="sig-name descname">run_api_call</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">call</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">*</span><span className="n">args</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_api'</span></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call_batch">
+<code className="sig-name descname">run_api_call_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">call</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">argslist</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_api'</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call_batch" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_chunked_sql">
+<code className="sig-name descname">run_chunked_sql</code><span className="sig-paren">(</span><em className="sig-param">statement: Union[bytes, psycopg2.sql.Composed, str, psycopg2.sql.SQL], arguments: Sequence[Any], return_shape: Optional[splitgraph.engine.ResultShape] = &lt;ResultShape.MANY_MANY: 4>, chunk_size: int = 1000, chunk_position: int = -1</em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_chunked_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Because the Splitgraph API has a request size limitation, certain
+SQL calls with variadic arguments are going to be too long to fit that. This function
+runs an SQL query against a set of broken up arguments and returns the combined result.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">statement: Union[bytes, psycopg2.sql.Composed, str, psycopg2.sql.SQL], arguments: Optional[Sequence[Any]] = None, return_shape: Optional[splitgraph.engine.ResultShape] = &lt;ResultShape.MANY_MANY: 4>, named: bool = False</em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an arbitrary SQL statement with some arguments, return an iterator of results.
+If the statement doesn’t return any results, return None. If named=True, return named
+tuples when possible.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_sql_batch">
+<code className="sig-name descname">run_sql_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">statement</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">arguments</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">max_size</span><span className="o">=</span><span className="default_value">261000</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_sql_batch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a parameterized SQL statement against multiple sets of arguments.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>statement</strong> – Statement to run</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>schema</strong> – Schema to run the statement in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.splitgraph_version">
+<em className="property">property </em><code className="sig-name descname">splitgraph_version</code><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.splitgraph_version" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the version of the Splitgraph library installed on the engine
+and by association the version of the engine itself.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.add_ud_flag_column">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">add_ud_flag_column</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_schema</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.add_ud_flag_column" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.chunk">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">chunk</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sequence</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>T<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">chunk_size</span><span className="p">:</span> <span className="n">int</span> <span className="o">=</span> <span className="default_value">1000</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>List<span className="p">[</span>T<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.chunk" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.get_change_key">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.get_conn_str">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">get_conn_str</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.engine.postgres.engine.get_conn_str" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.hooks.mdx b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.hooks.mdx
new file mode 100644
index 00000000..ef36724b
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.hooks.mdx
@@ -0,0 +1,424 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.hooks package",
+  id: "splitgraph.hooks package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhooksexternal_objects-module">splitgraph.hooks.external_objects module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhookss3-module">splitgraph.hooks.s3 module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhookssplitfile_commands-module">splitgraph.hooks.splitfile_commands module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.hooks">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.hooks" title="Permalink to this headline">¶</a></h2>
+<p>Various hooks for extending Splitgraph, including:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>External object handlers (<a className="reference internal" href="#module-splitgraph.hooks.external_objects" title="splitgraph.hooks.external_objects"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects</span></code></a>) allowing to download/upload objects
+to locations other than the remote Splitgraph engine.</p></li>
+<li><p>FDW handlers (<a className="reference internal" href="#module-splitgraph.hooks.mount_handlers" title="splitgraph.hooks.mount_handlers"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.mount_handlers</span></code></a>) that allow to use the Postgres engine’s FDW interface
+to mount other external databases on the engine.</p></li>
+<li><p>Splitfile commands (<a className="reference internal" href="#module-splitgraph.hooks.splitfile_commands" title="splitgraph.hooks.splitfile_commands"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.splitfile_commands</span></code></a>) to define custom data transformation steps
+compatible with the Splitfile framework.</p></li>
+</ul>
+</div></blockquote>
+</div><div className="section" id="splitgraph-hooks-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.hooks.external_objects">
+<span id="splitgraph-hooks-external-objects-module"></span><h2 id="splitgraphhooksexternal_objects-module">splitgraph.hooks.external_objects module<a className="headerlink" href="#module-splitgraph.hooks.external_objects" title="Permalink to this headline">¶</a></h2>
+<p>Hooks for registering handlers to upload/download objects from external locations into Splitgraph’s cache.</p>
+<dl className="py class">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">ExternalObjectHandler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Framework for allowing to dump objects from the Splitgraph cache to an external location. This allows
+the objects to be stored somewhere other than the actual remote engine.</p>
+<p>External object handlers must extend this class and be registered in the Splitgraph config.</p>
+<p>For an example of how this can be used, see splitgraph.hooks.s3: it’s a handler allowing objects to be
+uploaded to S3/S3-compatible host using the Minio API. It’s registered in the config as follows:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="p">[</span><span className="n">external_handlers</span><span className="p">]</span>
+<span className="n">S3</span><span className="o">=</span><span className="n">splitgraph</span><span className="o">.</span><span className="n">hooks</span><span className="o">.</span><span className="n">s3</span><span className="o">.</span><span className="n">S3ExternalObjectHandler</span>
+</pre></div>
+</div>
+<p>The protocol and the URLs returned by this handler are stored in splitgraph_meta.external_objects
+and used to download the objects back into the Splitgraph cache when they are needed.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the external location into the Splitgraph cache.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_id, object_url)</cite> that this handler had previosly
+uploaded the objects to.</p></li>
+<li><p><strong>remote_engine</strong> – An instance of Engine class that the objects will be registered on</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of object IDs that have been successfully downloaded.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the Splitgraph cache to an external location</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – An instance of Engine class that the objects will be registered on</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of successfully uploaded object IDs and URLs they can be found at.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.external_objects.get_external_object_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">get_external_object_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler">splitgraph.hooks.external_objects.ExternalObjectHandler</a><a className="headerlink" href="#splitgraph.hooks.external_objects.get_external_object_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Load an external protocol handler by its name, initializing it with optional parameters.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.external_objects.register_upload_download_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">register_upload_download_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_class</span><span className="p">:</span> <span className="n">Callable<span className="p">[</span><span className="p">[</span><span className="p">…</span><span className="p">]</span><span className="p">, </span><a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler">splitgraph.hooks.external_objects.ExternalObjectHandler</a><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.external_objects.register_upload_download_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Register an external protocol handler. See the docstring for <cite>get_upload_download_handler</cite> for the required
+signatures of the handler functions.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.mount_handlers">
+<span id="splitgraph-hooks-mount-handlers-module"></span><h2 id="splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module<a className="headerlink" href="#module-splitgraph.hooks.mount_handlers" title="Permalink to this headline">¶</a></h2>
+<p>Hooks for additional handlers used to mount other databases via FDW. These handlers become available
+in the command line tool (via <cite>sgr mount</cite>) and in the Splitfile interpreter (via <cite>FROM MOUNT</cite>).</p>
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.get_mount_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">get_mount_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Callable<a className="headerlink" href="#splitgraph.hooks.mount_handlers.get_mount_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a mount function for a given handler.
+The mount function must have a signature <cite>(mountpoint, server, port, username, password, handler_kwargs)</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.get_mount_handlers">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">get_mount_handlers</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.mount_handlers.get_mount_handlers" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the names of all registered mount handlers.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.init_fdw">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">init_fdw</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">server_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">user_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.init_fdw" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets up a foreign data server on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – PostgresEngine</p></li>
+<li><p><strong>server_id</strong> – Name to call the foreign server, must be unique. Will be deleted if exists.</p></li>
+<li><p><strong>wrapper</strong> – Name of the foreign data wrapper (must be installed as an extension on the engine)</p></li>
+<li><p><strong>server_options</strong> – Dictionary of FDW options</p></li>
+<li><p><strong>user_options</strong> – Dictionary of user options</p></li>
+<li><p><strong>overwrite</strong> – If the server already exists, delete and recreate it.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_kwargs</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>int<span className="p">, </span>None<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mounts a foreign database via Postgres FDW (without creating new Splitgraph objects)</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Mountpoint to import the new tables into.</p></li>
+<li><p><strong>mount_handler</strong> – The type of the mounted database. Must be one of <cite>postgres_fdw</cite> or <cite>mongo_fdw</cite>.</p></li>
+<li><p><strong>handler_kwargs</strong> – Dictionary of options to pass to the mount handler.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_elasticsearch">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_elasticsearch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">int</span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_spec</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_elasticsearch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount an ElasticSearch instance.</p>
+<p>Mount a set of tables proxying to a remote ElasticSearch index.</p>
+<p>This uses a fork of postgres-elasticsearch-fdw behind the scenes. You can add a column
+<cite>query</cite> to your table and set it as <cite>query_column</cite> to pass advanced ES queries and aggregations.
+For example:</p>
+<p><a href="#id1"><span className="problematic" id="id2">``</span></a>`
+sgr mount elasticsearch -c elasticsearch:9200 -o@- &lt;&lt;EOF</p>
+<blockquote>
+<div><dl>
+<dt>&#38;lbrace;</dt><dd><dl>
+<dt>“table_spec”: &#38;lbrace;</dt><dd><dl>
+<dt>“table_1”: &#38;lbrace;</dt><dd><dl className="simple">
+<dt>“schema”: &#38;lbrace;</dt><dd><p>“id”: “text”,
+“@timestamp”: “timestamp”,
+“query”: “text”,
+“col_1”: “text”,
+“col_2”: “boolean”,</p>
+</dd>
+</dl>
+<p>&#38;rbrace;,
+“index”: “index-pattern*”,
+“rowid_column”: “id”,
+“query_column”: “query”,</p>
+</dd>
+</dl>
+<p>&#38;rbrace;</p>
+</dd>
+</dl>
+<p>&#38;rbrace;</p>
+</dd>
+</dl>
+<p>&#38;rbrace;</p>
+</div></blockquote>
+<p></p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Database port</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>table_spec</strong> – </p><p>A dictionary of form
+<a href="#id3"><span className="problematic" id="id4">`</span></a>&#38;lbrace;“table_name”:</p>
+<blockquote>
+<div><dl className="simple">
+<dt>&#38;lbrace;“schema”: &#38;lbrace;“col1”: “type1”…&#38;rbrace;,</dt><dd><p>”index”: &lt;es index>,
+“type”: &lt;es doc_type, optional in ES7 and later>,
+“query_column”: &lt;column to pass ES query in>,
+“score_column”: &lt;column to return document score>,
+“scroll_size”: &lt;fetch size, default 1000>,
+“scroll_duration”: &lt;how long to hold the scroll context open for, default 10m>&#38;rbrace;,
+…&#38;rbrace;`</p>
+</dd>
+</dl>
+</div></blockquote>
+<p></p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_mongo">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_mongo</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">int</span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">table_spec</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_mongo" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a Mongo database.</p>
+<p>Mounts one or more collections on a remote Mongo database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Port the Mongo server is running on.</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>table_spec</strong> – A dictionary of form <cite>&#38;lbrace;“table_name”: &#38;lbrace;“db”: &lt;dbname>, “coll”: &lt;collection>,
+“schema”: &#38;lbrace;“col1”: “type1”…&#38;rbrace;&#38;rbrace;&#38;rbrace;</cite>.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_mysql">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_mysql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">int</span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">remote_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_mysql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a MySQL database.</p>
+<p>Mounts a schema on a remote MySQL database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Database port</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>remote_schema</strong> – Remote schema name.</p></li>
+<li><p><strong>tables</strong> – Tables to mount (default all). If a list, then will use IMPORT FOREIGN SCHEMA.</p></li>
+</ul>
+</dd>
+</dl>
+<p>If a dictionary, must have the format <cite>&#38;lbrace;“table_name”: &#38;lbrace;“col_1”: “type_1”, …&#38;rbrace;&#38;rbrace;</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_postgres">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_postgres</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>int<span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">dbname</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">remote_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">extra_server_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_postgres" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a Postgres database.</p>
+<p>Mounts a schema on a remote Postgres database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Port the Postgres server is running on.</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>dbname</strong> – Remote database name.</p></li>
+<li><p><strong>remote_schema</strong> – Remote schema name.</p></li>
+<li><p><strong>extra_server_args</strong> – Dictionary of extra arguments to pass to the foreign server</p></li>
+<li><p><strong>tables</strong> – Tables to mount (default all). If a list, then will use IMPORT FOREIGN SCHEMA.</p></li>
+</ul>
+</dd>
+</dl>
+<p>If a dictionary, must have the format &#38;lbrace;“table_name”: &#38;lbrace;“col_1”: “type_1”, …&#38;rbrace;&#38;rbrace;.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.register_mount_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">register_mount_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_function</span><span className="p">:</span> <span className="n">Callable</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.register_mount_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a mount function under a given name. See <cite>get_mount_handler</cite> for the mount handler spec.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.s3">
+<span id="splitgraph-hooks-s3-module"></span><h2 id="splitgraphhookss3-module">splitgraph.hooks.s3 module<a className="headerlink" href="#module-splitgraph.hooks.s3" title="Permalink to this headline">¶</a></h2>
+<p>Plugin for uploading Splitgraph objects from the cache to an external S3-like object store</p>
+<dl className="py class">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">S3ExternalObjectHandler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects.ExternalObjectHandler</span></code></a></p>
+<p>Uploads/downloads the objects to/from S3/S3-compatible host using the Minio client.</p>
+<p>The handler is “attached” to a given registry which manages issuing pre-signed
+GET/PUT URLs.</p>
+<p>The handler supports a parameter <cite>threads</cite> specifying the number of threads
+used to upload the objects.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from Minio.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>objects</strong> – List of (object ID, object URL (object ID it’s stored under))</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects to Minio</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_engine</strong> – Remote Engine class</p></li>
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of tuples with successfully uploaded objects and their URLs.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.s3.get_object_download_urls">
+<code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">get_object_download_urls</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_engine</span></em>, <em className="sig-param"><span className="n">remote_object_ids</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.get_object_download_urls" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.s3.get_object_upload_urls">
+<code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">get_object_upload_urls</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_engine</span></em>, <em className="sig-param"><span className="n">objects</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.get_object_upload_urls" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.splitfile_commands">
+<span id="splitgraph-hooks-splitfile-commands-module"></span><h2 id="splitgraphhookssplitfile_commands-module">splitgraph.hooks.splitfile_commands module<a className="headerlink" href="#module-splitgraph.hooks.splitfile_commands" title="Permalink to this headline">¶</a></h2>
+<p>A framework for custom Splitfile commands. The execution flow is as follows:</p>
+<blockquote>
+<div><ul>
+<li><p>When the Splitfile executor finds an unknown command, it looks for an entry in the config file:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="p">[</span><span className="n">commands</span><span className="p">]</span>
+<span className="n">RUN</span><span className="o">=</span><span className="n">splitgraph</span><span className="o">.</span><span className="n">plugins</span><span className="o">.</span><span className="n">Run</span>
+</pre></div>
+</div>
+</li>
+<li><p>The command class must extend this class, initialized at every invocation time.</p></li>
+<li><p>The command’s <cite>calc_hash()</cite> method is run. The resultant command context hash is combined with the current
+image hash to produce the new image hash: if it already exists, then the image is simply checked out.</p></li>
+<li><p>Otherwise (or if calc_hash is undefined or returns None), <cite>execute()</cite>, where the actual command should be
+implemented, is run. If it returns a hash, this hash is used for the new image. If this hash already exists,
+the existing image is checked out instead. If the command returns None, a random hash is generated for the
+new image.</p></li>
+</ul>
+</div></blockquote>
+<dl className="py class">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.splitfile_commands.</code><code className="sig-name descname">PluginCommand</code><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Base class for custom Splitfile commands.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand.calc_hash">
+<code className="sig-name descname">calc_hash</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span></em>, <em className="sig-param"><span className="n">args</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand.calc_hash" title="Permalink to this definition">¶</a></dt>
+<dd><p>Calculates the command context hash for this custom command. If either the command context hash or the
+previous image hash has changed, then the image hash produced by this command will change.
+Consequently, two commands with the same command context hashes are assumed to have the same effect
+on any Splitgraph images.</p>
+<p>This is supposed to be a lightweight method intended for pre-flight image hash calculations
+(without performing the actual transformation). If it returns None, the actual transformation is run anyway.</p>
+<p>For example, for a command that imports some data from an external URL, this could be the hash of the last
+modified timestamp provided by the external data vendor. If the timestamp is unchanged, the data is unchanged
+and so actual command won’t be re-executed.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>repository</strong> – SG Repository object pointed to a schema with the checked out image
+the command is being run against.</p></li>
+<li><p><strong>args</strong> – Positional arguments to the command</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Command context hash (a string of 64 hexadecimal digits)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand.execute">
+<code className="sig-name descname">execute</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span></em>, <em className="sig-param"><span className="n">args</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand.execute" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute the custom command against the target schema, optionally returning the new image hash. The contract
+for the command is as follows (though it is not currently enforced by the runtime):</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>Has to use get_engine().run_sql (or run_sql_batch) to interact with the engine.</p></li>
+<li><p>Can only write to the schema with the checked-out repository (run_sql runs non-schema-qualified
+statements against the correct schema).</p></li>
+<li><p>Can inspect splitgraph_meta (e.g. to find the current HEAD) for the repository.</p></li>
+<li><p>Can’t alter the versioning of the repository.</p></li>
+</ul>
+</div></blockquote>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>repository</strong> – SG Repository object pointed to a schema with the checked out image
+the command is being run against.</p></li>
+<li><p><strong>args</strong> – Positional arguments to the command</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Command context hash (a string of 64 hexadecimal digits). If calc_hash() had previously returned
+a hash, this hash is ignored. If both this command and calc_hash() return None, the hash is randomly
+generated.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.mdx b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.mdx
new file mode 100644
index 00000000..01159f97
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.mdx
@@ -0,0 +1,254 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph package",
+  id: "splitgraph package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#subpackages">Subpackages</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphexceptions-module">splitgraph.exceptions module</a></li><li className="toc-item toc-item-h1"><a className="toc-link toc-link-h1" href="#indices-and-tables">Indices and tables</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph" title="Permalink to this headline">¶</a></h2>
+</div><div className="section" id="splitgraph-package">
+
+<div className="section" id="subpackages">
+<h2 id="subpackages">Subpackages<a className="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
+<div className="toctree-wrapper compound">
+<ul>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.config/">splitgraph.config package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.argument_config">splitgraph.config.argument_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.config">splitgraph.config.config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.config_file_config">splitgraph.config.config_file_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.default_config">splitgraph.config.default_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.environment_config">splitgraph.config.environment_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.keys">splitgraph.config.keys module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.system_config">splitgraph.config.system_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.core/">splitgraph.core package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.engine">splitgraph.core.engine module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.image">splitgraph.core.image module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.object_manager">splitgraph.core.object_manager module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.registry">splitgraph.core.registry module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.repository">splitgraph.core.repository module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.table">splitgraph.core.table module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.engine/">splitgraph.engine package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine/#subpackages">Subpackages</a><ul>
+<li className="toctree-l3"><a className="reference internal" href="splitgraph.engine.postgres/">splitgraph.engine.postgres package</a><ul>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#submodules">Submodules</a></li>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres.engine">splitgraph.engine.postgres.engine module</a></li>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine/#module-splitgraph.engine">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.hooks/">splitgraph.hooks package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.external_objects">splitgraph.hooks.external_objects module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.mount_handlers">splitgraph.hooks.mount_handlers module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.s3">splitgraph.hooks.s3 module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.splitfile_commands">splitgraph.hooks.splitfile_commands module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.splitfile/">splitgraph.splitfile package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#module-splitgraph.splitfile.execution">splitgraph.splitfile.execution module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#module-splitgraph.splitfile">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.exceptions">
+<span id="splitgraph-exceptions-module"></span><h2 id="splitgraphexceptions-module">splitgraph.exceptions module<a className="headerlink" href="#module-splitgraph.exceptions" title="Permalink to this headline">¶</a></h2>
+<p>Exceptions that can be raised by the Splitgraph library.</p>
+<dl className="py exception">
+<dt id="splitgraph.exceptions.APICompatibilityError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">APICompatibilityError</code><a className="headerlink" href="#splitgraph.exceptions.APICompatibilityError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions related to API incompatibilities</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.AuthAPIError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">AuthAPIError</code><a className="headerlink" href="#splitgraph.exceptions.AuthAPIError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by the Auth API</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.CheckoutError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">CheckoutError</code><a className="headerlink" href="#splitgraph.exceptions.CheckoutError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to checking out/committing repositories</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.DockerUnavailableError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">DockerUnavailableError</code><a className="headerlink" href="#splitgraph.exceptions.DockerUnavailableError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Could not connect to the Docker daemon.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.EngineInitializationError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">EngineInitializationError</code><a className="headerlink" href="#splitgraph.exceptions.EngineInitializationError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when the engine isn’t initialized (no splitgraph_meta schema or audit triggers)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ExternalHandlerError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ExternalHandlerError</code><a className="headerlink" href="#splitgraph.exceptions.ExternalHandlerError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by external object handlers.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLAPIError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLAPIError</code><a className="headerlink" href="#splitgraph.exceptions.GQLAPIError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>GQL API errors</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLRepoDoesntExistError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLRepoDoesntExistError</code><a className="headerlink" href="#splitgraph.exceptions.GQLRepoDoesntExistError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Repository doesn’t exist</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLUnauthenticatedError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLUnauthenticatedError</code><a className="headerlink" href="#splitgraph.exceptions.GQLUnauthenticatedError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Unauthenticated (user not logged in)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLUnauthorizedError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLUnauthorizedError</code><a className="headerlink" href="#splitgraph.exceptions.GQLUnauthorizedError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Unauthorized (e.g. repository isn’t writeable by the user)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ImageNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ImageNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.ImageNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A Splitgraph image doesn’t exist.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.IncompleteObjectDownloadError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">IncompleteObjectDownloadError</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reason</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>BaseException<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.exceptions.IncompleteObjectDownloadError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when an error is encountered during download of multiple objects.
+The handler is supposed to perform any necessary
+cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.IncompleteObjectUploadError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">IncompleteObjectUploadError</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reason</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>BaseException<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_object_urls</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.exceptions.IncompleteObjectUploadError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when an error is encountered during upload of multiple objects.
+The handler is supposed to perform any necessary
+cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.MountHandlerError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">MountHandlerError</code><a className="headerlink" href="#splitgraph.exceptions.MountHandlerError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by mount handlers.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectCacheError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectCacheError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectCacheError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Issues with the object cache (not enough space)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectIndexingError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectIndexingError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectIndexingError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to indexing objects</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectMountingError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectMountingError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectMountingError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to incompatible objects.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when a physical object doesn’t exist in the cache.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.RepositoryNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">RepositoryNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.RepositoryNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A Splitgraph repository doesn’t exist.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.SplitGraphError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">SplitGraphError</code><a className="headerlink" href="#splitgraph.exceptions.SplitGraphError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">Exception</span></code></p>
+<p>A generic Splitgraph exception.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.SplitfileError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">SplitfileError</code><a className="headerlink" href="#splitgraph.exceptions.SplitfileError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Generic error class for Splitfile interpretation/execution errors.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.TableNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">TableNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.TableNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A table doesn’t exist in an image</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.UnsupportedSQLError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">UnsupportedSQLError</code><a className="headerlink" href="#splitgraph.exceptions.UnsupportedSQLError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised for unsupported SQL statements, for example, containing schema-qualified tables when the statement
+is supposed to be used in an SQL/IMPORT Splitfile command.</p>
+</dd></dl>
+
+</div>
+
+</div>
+<div className="section" id="indices-and-tables">
+<h1 id="indices-and-tables">Indices and tables<a className="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h1>
+<ul className="simple">
+<li><p><a className="reference internal" href="../genindex/"><span className="std std-ref">Index</span></a></p></li>
+<li><p><a className="reference internal" href="../py-modindex/"><span className="std std-ref">Module Index</span></a></p></li>
+<li><p><a className="reference internal" href="../search/"><span className="std std-ref">Search Page</span></a></p></li>
+</ul>
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.splitfile.mdx b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.splitfile.mdx
new file mode 100644
index 00000000..b0460786
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.2/splitgraph.splitfile.mdx
@@ -0,0 +1,89 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.splitfile package",
+  id: "splitgraph.splitfile package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphsplitfileexecution-module">splitgraph.splitfile.execution module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.splitfile">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.splitfile" title="Permalink to this headline">¶</a></h2>
+<p>Splitfile interpreter: a set of tools on top of the core Splitgraph versioning and image management to give
+the user a Dockerfile-like experience for building Splitgraph images (caching, consistent hashing, a declarative
+language).</p>
+</div><div className="section" id="splitgraph-splitfile-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.splitfile.execution">
+<span id="splitgraph-splitfile-execution-module"></span><h2 id="splitgraphsplitfileexecution-module">splitgraph.splitfile.execution module<a className="headerlink" href="#module-splitgraph.splitfile.execution" title="Permalink to this headline">¶</a></h2>
+<p>Functions for executing Splitfiles.</p>
+<dl className="py class">
+<dt id="splitgraph.splitfile.execution.ImageMapper">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">ImageMapper</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.get_provenance_data">
+<code className="sig-name descname">get_provenance_data</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.get_provenance_data" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.setup_lq_mounts">
+<code className="sig-name descname">setup_lq_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.setup_lq_mounts" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.teardown_lq_mounts">
+<code className="sig-name descname">teardown_lq_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.teardown_lq_mounts" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.execute_commands">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">execute_commands</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">commands</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">output</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.core/#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">output_base</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'00000000000000000000000000000000'</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.execute_commands" title="Permalink to this definition">¶</a></dt>
+<dd><p>Executes a series of Splitfile commands.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>commands</strong> – A string with the raw Splitfile.</p></li>
+<li><p><strong>params</strong> – A dictionary of parameters to be applied to the Splitfile (<cite>$&#38;lbrace;PARAM&#38;rbrace;</cite> is replaced with the specified
+parameter value).</p></li>
+<li><p><strong>output</strong> – Output repository to execute the Splitfile against.</p></li>
+<li><p><strong>output_base</strong> – If not None, a revision that gets checked out for all Splitfile actions to be committed
+on top of it.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.getrandbits">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.splitfile.execution.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.prevalidate_imports">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">prevalidate_imports</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_names</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table_queries</span><span className="p">:</span> <span className="n">List<span className="p">[</span>bool<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.splitfile.execution.prevalidate_imports" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.rebuild_image">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">rebuild_image</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n"><a className="reference internal" href="splitgraph.core/#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a></span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span><a className="reference internal" href="splitgraph.core/#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.rebuild_image" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreates the Splitfile used to create a given image and reruns it, replacing its dependencies with a different
+set of versions.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>image</strong> – Image object</p></li>
+<li><p><strong>source_replacement</strong> – A map that specifies replacement images/tags for repositories that the image depends on</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.3/metadata.json b/content/docs/9500_python-api/9000_versions/v0.2.3/metadata.json
new file mode 100644
index 00000000..b9e9c7f3
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.3/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.3",
+  "updated_at": "2021-01-26T14:47:55.027Z",
+  "release": {
+    "id": 31397249,
+    "tag_name": "v0.2.3",
+    "target_commitish": "62311d4a66e546182ea988bc0b7a7fcf19e77a56",
+    "created_at": "2020-09-16T12:06:56Z",
+    "published_at": "2020-12-08T10:48:44Z",
+    "assets": [
+      {
+        "id": 25757519,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/25757519",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-09-16T12:29:49Z",
+        "updated_at": "2020-09-16T12:29:50Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.3/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.config.mdx b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.config.mdx
new file mode 100644
index 00000000..764a3f80
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.config.mdx
@@ -0,0 +1,337 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.config package",
+  id: "splitgraph.config package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigargument_config-module">splitgraph.config.argument_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigconfig-module">splitgraph.config.config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigconfig_file_config-module">splitgraph.config.config_file_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigdefault_config-module">splitgraph.config.default_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigenvironment_config-module">splitgraph.config.environment_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigkeys-module">splitgraph.config.keys module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigsystem_config-module">splitgraph.config.system_config module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.config">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.config" title="Permalink to this headline">¶</a></h2>
+<p>The CONFIG object is created and exported once __at import <a href="#id1"><span className="problematic" id="id2">time__</span></a>
+Calling CONFIG[“KEY”] directly should be sufficient in most cases,
+except when a config value has changed since importing CONFIG.
+In that case, create_config_dict() can provide an updated config dict</p>
+<p>Priority (highest to lowest):</p>
+<blockquote>
+<div><ol className="arabic simple">
+<li><p>Command line argument values</p></li>
+<li><p>Environment variable values</p></li>
+<li><p>Config file values in [defaults] section</p></li>
+<li><p>DEFAULTS (see keys.py)</p></li>
+</ol>
+</div></blockquote>
+</div><div className="section" id="splitgraph-config-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.config.argument_config">
+<span id="splitgraph-config-argument-config-module"></span><h2 id="splitgraphconfigargument_config-module">splitgraph.config.argument_config module<a className="headerlink" href="#module-splitgraph.config.argument_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.argument_config.get_arg_tuples">
+<code className="sig-prename descclassname">splitgraph.config.argument_config.</code><code className="sig-name descname">get_arg_tuples</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.argument_config.get_arg_tuples" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the raw (argN, argN+1) tuples from sys.argv</p>
+<p>We could also use click to parse the flags ahead of time, and then pass
+the parsed flag object into SystemConfigGetters. But this way, we avoid
+having to pass down variables from click just to get config values.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.argument_config.get_argument_config_value">
+<code className="sig-prename descclassname">splitgraph.config.argument_config.</code><code className="sig-name descname">get_argument_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.argument_config.get_argument_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get get the value of an argument, where value is the argument
+immediately following the argument matching a key in ARG_KEYS, e.g.:</p>
+<blockquote>
+<div><p>SYS_ARGS = [“–namespace”, “foo”]
+–> return “foo”</p>
+</div></blockquote>
+<p>Otherwise, return default_return</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.config">
+<span id="splitgraph-config-config-module"></span><h2 id="splitgraphconfigconfig-module">splitgraph.config.config module<a className="headerlink" href="#module-splitgraph.config.config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.config.chain_getters">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">chain_getters</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">getters</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Callable<span className="p">[</span><span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.chain_getters" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.create_config_dict">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">create_config_dict</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.create_config_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create and return a dict of all known config values</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_all_in_section">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_section" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get all subsections from a config (e.g. config[“mount_handlers”])</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_all_in_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_subsection" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_from_section">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_from_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_from_section" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_from_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_from_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_from_subsection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a singleton variable from a subsection of the config,
+e.g. config[“remotes”][“data.splitgraph.com”][“SG_ENGINE_HOST”]</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_singleton">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_singleton</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_singleton" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a singleton (not a section) variable from the config.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.lazy_get_config_value">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">lazy_get_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.lazy_get_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the config value for a key in the following precedence
+Otherwise return default_return</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.patch_config">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">patch_config</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">patch</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.patch_config" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recursively updates a nested configuration dictionary:</p>
+<dl className="simple">
+<dt>patch_config(</dt><dd><dl className="simple">
+<dt>&#38;lbrace;“key_1”: “value_1”,</dt><dd><p>“dict_1”: &#38;lbrace;“key_1”: “value_1”&#38;rbrace;&#38;rbrace;,</p>
+</dd>
+<dt>&#38;lbrace;“key_1”: “value_2”,</dt><dd><p>“dict_1”: &#38;lbrace;“key_2”: “value_2”&#38;rbrace;&#38;rbrace;) ==         &#38;lbrace;“key_1”: “value_2”,
+“dict_1”: &#38;lbrace;“key_1”: “value_1”, “key_2”: “value_2”&#38;rbrace;&#38;rbrace;</p>
+</dd>
+</dl>
+</dd>
+</dl>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>config</strong> – Config dictionary</p></li>
+<li><p><strong>patch</strong> – Dictionary with the path</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>New patched dictionary</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.set_in_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">set_in_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">value</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.config.config.set_in_subsection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set a singleton variable in a subsection of the config,
+e.g. config[“remotes”][“data.splitgraph.com”][“SG_ENGINE_HOST”]</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_arguments">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_arguments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_arguments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading sys.argv
+and overwriting any keys.</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_env_vars">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_env_vars</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_env_vars" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading os.environ
+and overwriting any keys.</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_file">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">sg_config_file</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading sg_config_file
+and overwriting any keys according to the rules in config_file_config</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.config_file_config">
+<span id="splitgraph-config-config-file-config-module"></span><h2 id="splitgraphconfigconfig_file_config-module">splitgraph.config.config_file_config module<a className="headerlink" href="#module-splitgraph.config.config_file_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.accumulate_lists">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">accumulate_lists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.accumulate_lists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Transform a <cite>config_dict</cite> to “accumulate” objects “nested” via key name</p>
+<p>Because  ConfigParser does not support nesting, we implement our own
+syntax via the key names of sections. The ‘:’ character can be used in
+section names to specify the left and right key. Example:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="o">.</span><span className="n">ini</span> <span className="n">config</span>             <span className="n">new</span> <span className="n">config_dict</span>
+
+                  <span className="o">-----></span>
+                    <span className="o">|</span>
+<span className="p">[</span><span className="n">remote</span><span className="p">:</span> <span className="n">remote1</span><span className="p">]</span>   <span className="o">|</span>   <span className="p">&#38;lbrace;</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">foo</span>      <span className="o">|</span>       <span className="o">**</span><span className="n">rest_of_config_dict</span><span className="p">,</span>
+                    <span className="o">|</span>       <span className="s2">"remotes"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+<span className="p">[</span><span className="n">origin</span><span className="p">:</span> <span className="n">origin1</span><span className="p">]</span>   <span className="o">|</span>           <span className="s2">"remote1"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">bar</span>      <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"foo"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;</span>
+<span className="p">[</span><span className="n">origin</span><span className="p">:</span> <span className="n">origin2</span><span className="p">]</span>   <span className="o">|</span>       <span className="p">&#38;rbrace;,</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">bax</span>      <span className="o">|</span>       <span className="s2">"origins"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>           <span className="s2">"origin1"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"bar"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;,</span>
+                    <span className="o">|</span>           <span className="s2">"origin2"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"bax"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>       <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>   <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>
+                  <span className="o">-----></span>
+</pre></div>
+</div>
+<p>:return a new, updated copy of <cite>config_dict</cite></p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.get_config_dict_from_config_file">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">get_config_dict_from_config_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sg_file</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.get_config_dict_from_config_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a dict from ConfigParser, apply transformations to it.</p>
+<p>Return parsed and transformed <cite>config_dict</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.get_config_dict_from_file">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">get_config_dict_from_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sg_file</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.get_config_dict_from_file" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.hoist_section">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">hoist_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'defaults'</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.hoist_section" title="Permalink to this definition">¶</a></dt>
+<dd><p>If a section exists called &lt;hoist_section>, hoist it to the top level
+This is useful for overriding default configs from within a config file</p>
+<p>Transform <cite>config_dict</cite> to “hoist” any config values from a section
+into the top level (thus, overriding environment variables),
+when the name of the section matches <cite>hoist_section</cite>.</p>
+<p>Return a new, updated copy of <cite>config_dict</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.transform_config_dict">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">transform_config_dict</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.transform_config_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply transformations to the raw ConfigParser.config object</p>
+<blockquote>
+<div><ol className="arabic simple">
+<li><p>hoist_section</p></li>
+<li><p>accumulate_lists</p></li>
+</ol>
+</div></blockquote>
+<p>Return the a new, updated copy of <cite>config_dict</cite>.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.default_config">
+<span id="splitgraph-config-default-config-module"></span><h2 id="splitgraphconfigdefault_config-module">splitgraph.config.default_config module<a className="headerlink" href="#module-splitgraph.config.default_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.default_config.get_default_config_value">
+<code className="sig-prename descclassname">splitgraph.config.default_config.</code><code className="sig-name descname">get_default_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.config.default_config.get_default_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the hard-coded default value of a config key.
+Otherwise return default_return.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.environment_config">
+<span id="splitgraph-config-environment-config-module"></span><h2 id="splitgraphconfigenvironment_config-module">splitgraph.config.environment_config module<a className="headerlink" href="#module-splitgraph.config.environment_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.environment_config.get_environment_config_value">
+<code className="sig-prename descclassname">splitgraph.config.environment_config.</code><code className="sig-name descname">get_environment_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.environment_config.get_environment_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the environment variable value of the environment variable matching key.
+Otherwise return default_return.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.keys">
+<span id="splitgraph-config-keys-module"></span><h2 id="splitgraphconfigkeys-module">splitgraph.config.keys module<a className="headerlink" href="#module-splitgraph.config.keys" title="Permalink to this headline">¶</a></h2>
+<dl className="py data">
+<dt id="splitgraph.config.keys.SENSITIVE_KEY_SUFFIXES">
+<code className="sig-prename descclassname">splitgraph.config.keys.</code><code className="sig-name descname">SENSITIVE_KEY_SUFFIXES</code><em className="property"> = ['_PWD', '_TOKEN']</em><a className="headerlink" href="#splitgraph.config.keys.SENSITIVE_KEY_SUFFIXES" title="Permalink to this definition">¶</a></dt>
+<dd><p>Warning: Every key in DEFAULTS must have a key in ARGUMENT_KEY_MAP
+If you add/remove keys from DEFAULTS, make sure to do so here too.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.system_config">
+<span id="splitgraph-config-system-config-module"></span><h2 id="splitgraphconfigsystem_config-module">splitgraph.config.system_config module<a className="headerlink" href="#module-splitgraph.config.system_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.system_config.file_exists">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">file_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">_dir</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">filename</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.config.system_config.file_exists" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_config_file">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_config_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_config_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the location of an existing SG_CONFIG_FILE on the system with
+a valid name. Do not attempt to parse the config file, just return
+its location.</p>
+<p>Otherwise, return default_return</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_explicit_config_file_dirs">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_explicit_config_file_dirs</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_explicit_config_file_dirs" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get any explicitly defined config file directories,
+which are directories where we should search for files from
+VALID_CONFIG_FILE_NAMES.</p>
+<p>This list is defined similar to $PATH, as a colon (:) delimited
+string, either in:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-dirs</p></li>
+<li><p>or environment key SG_CONFIG_DIRS</p></li>
+</ul>
+</div></blockquote>
+<p>Or a single directory defined in either</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-dir</p></li>
+<li><p>environment key SG_CONFIG_DIR</p></li>
+</ul>
+</div></blockquote>
+<p>If both plural and single are defined, join them together.</p>
+<p>Return a list of valid paths that are set, or an empty list.</p>
+<p>Print a warning if any paths to not exist.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_explicit_config_file_location">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_explicit_config_file_location</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_explicit_config_file_location" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the explicitly defined location of config file, if defined.</p>
+<p>The location will either be defined in:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-file</p></li>
+<li><p>or environment key SG_CONFIG_FILE</p></li>
+</ul>
+</div></blockquote>
+<p>In keeping with assumptions about priority, argument flag has
+higher priority than environment value.</p>
+<p>If the location is set, and points to an existing file, return location.</p>
+<p>Otherwise return None</p>
+<p>Print a warning if location is set but points to non-existing file.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_system_config_value">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_system_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_system_config_value" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.is_file">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">is_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">filename</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.config.system_config.is_file" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.core.mdx b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.core.mdx
new file mode 100644
index 00000000..faef8b81
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.core.mdx
@@ -0,0 +1,1066 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.core package",
+  id: "splitgraph.core package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreengine-module">splitgraph.core.engine module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreimage-module">splitgraph.core.image module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreobject_manager-module">splitgraph.core.object_manager module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreregistry-module">splitgraph.core.registry module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcorerepository-module">splitgraph.core.repository module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoretable-module">splitgraph.core.table module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.core">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.core" title="Permalink to this headline">¶</a></h2>
+<p>Core Splitgraph functionality: versioning and sharing tables.</p>
+<p>The main point of interaction with the Splitgraph API is a <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.repository.Repository</span></code></a> object
+representing a local or a remote Splitgraph repository. Repositories can be created using one of the
+following methods:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>Directly by invoking <cite>Repository(namespace, name, engine)</cite> where <cite>engine</cite> is the engine that the repository
+belongs to (that can be gotten with <cite>get_engine(engine_name)</cite>. If the created repository doesn’t actually exist
+on the engine, it must first be initialized with <cite>repository.init()</cite>.</p></li>
+<li><p>By using <a className="reference internal" href="#splitgraph.core.engine.lookup_repository" title="splitgraph.core.engine.lookup_repository"><code className="xref py py-func docutils literal notranslate"><span className="pre">splitgraph.core.engine.lookup_repository()</span></code></a> which will search for the repository on the current
+lookup path.</p></li>
+</ul>
+</div></blockquote>
+</div><div className="section" id="splitgraph-core-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.core.engine">
+<span id="splitgraph-core-engine-module"></span><h2 id="splitgraphcoreengine-module">splitgraph.core.engine module<a className="headerlink" href="#module-splitgraph.core.engine" title="Permalink to this headline">¶</a></h2>
+<p>Routines for managing Splitgraph engines, including looking up repositories and managing objects.</p>
+<dl className="py function">
+<dt id="splitgraph.core.engine.get_current_repositories">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">get_current_repositories</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Repository<span className="p">, </span>Optional<span className="p">[</span>Image<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.engine.get_current_repositories" title="Permalink to this definition">¶</a></dt>
+<dd><p>Lists all repositories currently in the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of (Repository object, current HEAD image)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.init_engine">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">init_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">skip_object_handling</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.engine.init_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes the engine by:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>performing any required engine-custom initialization</p></li>
+<li><p>creating the metadata tables</p></li>
+</ul>
+</div></blockquote>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>skip_object_handling</strong> – If True, skips installing routines related to
+object handling and checkouts (like audit triggers and CStore management).</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.lookup_repository">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">lookup_repository</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">include_local</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Repository<a className="headerlink" href="#splitgraph.core.engine.lookup_repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Queries the SG engines on the lookup path to locate one hosting the given repository.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>name</strong> – Repository name</p></li>
+<li><p><strong>include_local</strong> – If True, also queries the local engine</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Local or remote Repository object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.repository_exists">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">repository_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.engine.repository_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks if a repository exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>repository</strong> – Repository object</p>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.image">
+<span id="splitgraph-core-image-module"></span><h2 id="splitgraphcoreimage-module">splitgraph.core.image module<a className="headerlink" href="#module-splitgraph.core.image" title="Permalink to this headline">¶</a></h2>
+<p>Image representation and provenance</p>
+<dl className="py class">
+<dt id="splitgraph.core.image.Image">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">Image</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">parent_id</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">created</span><span className="p">:</span> <span className="n">datetime.datetime</span></em>, <em className="sig-param"><span className="n">comment</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.image.Image" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">tuple</span></code></p>
+<p>Represents a Splitgraph image. Should’t be created directly, use Image-loading methods in the
+<a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.repository.Repository</span></code></a> class instead.</p>
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.checkout">
+<code className="sig-name descname">checkout</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">force</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">layered</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.checkout" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks the image out, changing the current HEAD pointer. Raises an error
+if there are pending changes to its checkout.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>force</strong> – Discards all pending changes to the schema.</p></li>
+<li><p><strong>layered</strong> – If True, uses layered querying to check out the image (doesn’t materialize tables
+inside of it).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.comment">
+<em className="property">property </em><code className="sig-name descname">comment</code><a className="headerlink" href="#splitgraph.core.image.Image.comment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 3</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.created">
+<em className="property">property </em><code className="sig-name descname">created</code><a className="headerlink" href="#splitgraph.core.image.Image.created" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 2</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.delete_tag">
+<code className="sig-name descname">delete_tag</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tag</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.delete_tag" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes a tag from an image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tag</strong> – Tag to delete.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.engine">
+<em className="property">property </em><code className="sig-name descname">engine</code><a className="headerlink" href="#splitgraph.core.image.Image.engine" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_log">
+<code className="sig-name descname">get_log</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_log" title="Permalink to this definition">¶</a></dt>
+<dd><p>Repeatedly gets the parent of a given image until it reaches the bottom.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_parent_children">
+<code className="sig-name descname">get_parent_children</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Tuple<span className="p">[</span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_parent_children" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets the parent and a list of children of a given image.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.image.Image.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the image’s objects (including those that might be
+shared with other images).</p>
+<p>This is calculated from the metadata, the on-disk footprint might be smaller if not all of image’s
+objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the image in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_table">
+<code className="sig-name descname">get_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.table.Table" title="splitgraph.core.table.Table">splitgraph.core.table.Table</a><a className="headerlink" href="#splitgraph.core.image.Image.get_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a Table object representing a version of a given table.
+Contains a list of objects that the table is linked to and the table’s schema.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>table_name</strong> – Name of the table</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Table object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_tables">
+<code className="sig-name descname">get_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets the names of all tables inside of an image.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_tags">
+<code className="sig-name descname">get_tags</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.image.Image.get_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Lists all tags that this image has.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.image_hash">
+<em className="property">property </em><code className="sig-name descname">image_hash</code><a className="headerlink" href="#splitgraph.core.image.Image.image_hash" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 0</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.object_engine">
+<em className="property">property </em><code className="sig-name descname">object_engine</code><a className="headerlink" href="#splitgraph.core.image.Image.object_engine" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.parent_id">
+<em className="property">property </em><code className="sig-name descname">parent_id</code><a className="headerlink" href="#splitgraph.core.image.Image.parent_id" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 1</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.provenance">
+<code className="sig-name descname">provenance</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reverse</span><span className="o">=</span><span className="default_value">False</span></em>, <em className="sig-param"><span className="n">engine</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.provenance" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inspects the image’s parent chain to come up with a set of repositories and their hashes
+that it was created from.</p>
+<p>If <cite>reverse</cite> is True, returns a list of images that were created _from_ this image. If
+this image is on a remote repository, <cite>engine</cite> can be passed in to override the engine
+used for the lookup of dependents.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>List of (repository, image_hash)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.provenance_data">
+<em className="property">property </em><code className="sig-name descname">provenance_data</code><a className="headerlink" href="#splitgraph.core.image.Image.provenance_data" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 4</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.query_schema">
+<code className="sig-name descname">query_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.query_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a temporary schema with tables in this image mounted as foreign tables that can be accessed via
+read-only layered querying. On exit from the context manager, the schema is discarded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>The name of the schema the image is located in.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.repository">
+<em className="property">property </em><code className="sig-name descname">repository</code><a className="headerlink" href="#splitgraph.core.image.Image.repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 5</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.set_provenance">
+<code className="sig-name descname">set_provenance</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.set_provenance" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets the image’s provenance. Internal function called by the Splitfile interpreter, shouldn’t
+be called directly as it changes the image after it’s been created.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>provenance_data</strong> – List of parsed Splitfile commands and their data.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.tag">
+<code className="sig-name descname">tag</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tag</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.tag" title="Permalink to this definition">¶</a></dt>
+<dd><p>Tags a given image. All tags are unique inside of a repository. If a tag already exists, it’s removed
+from the previous image and given to the new image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tag</strong> – Tag to set. ‘latest’ and ‘HEAD’ are reserved tags.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.to_splitfile">
+<code className="sig-name descname">to_splitfile</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">ignore_irreproducible</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.to_splitfile" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreate the Splitfile that can be used to reconstruct this image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>ignore_irreproducible</strong> – If True, ignore commands from irreproducible Splitfile lines
+(like MOUNT or custom commands) and instead emit a comment (this results in an invalid Splitfile).</p></li>
+<li><p><strong>source_replacement</strong> – A dictionary of repositories and image hashes/tags specifying how to replace the
+dependencies of this Splitfile (table imports and FROM commands).</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of Splitfile commands that can be fed back into the executor.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.image.getrandbits">
+<code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.core.image.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.image.reconstruct_splitfile">
+<code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">reconstruct_splitfile</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">ignore_irreproducible</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.reconstruct_splitfile" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreate the Splitfile that can be used to reconstruct an image.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.object_manager">
+<span id="splitgraph-core-object-manager-module"></span><h2 id="splitgraphcoreobject_manager-module">splitgraph.core.object_manager module<a className="headerlink" href="#module-splitgraph.core.object_manager" title="Permalink to this headline">¶</a></h2>
+<p>Functions related to creating, deleting and keeping track of physical Splitgraph objects.</p>
+<dl className="py class">
+<dt id="splitgraph.core.object_manager.ObjectManager">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.object_manager.</code><code className="sig-name descname">ObjectManager</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">metadata_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>PostgresEngine<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.fragment_manager.FragmentManager</span></code></p>
+<p>Brings the multiple manager classes together and manages the object cache (downloading and uploading
+objects as required in order to fulfill certain queries)</p>
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.cleanup">
+<code className="sig-name descname">cleanup</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.cleanup" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes all objects in the object_tree not required by any current repository, including their dependencies and
+their remote locations. Also deletes all objects not registered in the object_tree.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">ObjectManager</a><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects_to_fetch</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">object_locations</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Fetches the required objects from the remote and stores them locally.
+Does nothing for objects that already exist.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>source</strong> – Remote ObjectManager. If None, will only try to download objects from the external location.</p></li>
+<li><p><strong>objects_to_fetch</strong> – List of object IDs to download.</p></li>
+<li><p><strong>object_locations</strong> – List of custom object locations, encoded as tuples (object_id, object_url, protocol).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.ensure_objects">
+<code className="sig-name descname">ensure_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Table<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">defer_release</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">tracer</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>splitgraph.core.common.Tracer<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">upstream_manager</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">ObjectManager</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Tuple<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>splitgraph.core.common.CallbackList<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.ensure_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Resolves the objects needed to materialize a given table and makes sure they are in the local
+splitgraph_meta schema.</p>
+<p>Whilst inside this manager, the objects are guaranteed to exist. On exit from it, the objects are marked as
+unneeded and can be garbage collected.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table</strong> – Table to materialize</p></li>
+<li><p><strong>objects</strong> – List of objects to download: one of table or objects must be specified.</p></li>
+<li><p><strong>quals</strong> – Optional list of qualifiers to be passed to the fragment engine. Fragments that definitely do
+not match these qualifiers will be dropped. See the docstring for <cite>filter_fragments</cite> for the format.</p></li>
+<li><p><strong>defer_release</strong> – If True, won’t release the objects on exit.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If defer_release is True: List of table fragments and a callback that the caller must call
+when the objects are no longer needed. If defer_release is False: just the list of table fragments.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_cache_occupancy">
+<code className="sig-name descname">get_cache_occupancy</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_cache_occupancy" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Space occupied by objects cached from external locations, in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_downloaded_objects">
+<code className="sig-name descname">get_downloaded_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">limit_to</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_downloaded_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets a list of objects currently in the Splitgraph cache (i.e. not only existing externally.)</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>limit_to</strong> – If specified, only the objects in this list will be returned.</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Set of object IDs.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_total_object_size">
+<code className="sig-name descname">get_total_object_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_total_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Space occupied by all objects on the engine, in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.make_objects_external">
+<code className="sig-name descname">make_objects_external</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.make_objects_external" title="Permalink to this definition">¶</a></dt>
+<dd><p>Uploads local objects to an external location and marks them as being cached locally (thus making it possible
+to evict or swap them out).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – Object IDs to upload. Will do nothing for objects that already exist externally.</p></li>
+<li><p><strong>handler</strong> – Object handler</p></li>
+<li><p><strong>handler_params</strong> – Extra handler parameters</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.run_eviction">
+<code className="sig-name descname">run_eviction</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">keep_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">required_space</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.run_eviction" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete enough objects with zero reference count (only those, since we guarantee that whilst refcount is >0,
+the object stays alive) to free at least <cite>required_space</cite> in the cache.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>keep_objects</strong> – List of objects (besides those with nonzero refcount) that can’t be deleted.</p></li>
+<li><p><strong>required_space</strong> – Space, in bytes, to free. If the routine can’t free at least this much space,
+it shall raise an exception. If None, removes all eligible objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">target</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a></span></em>, <em className="sig-param"><span className="n">objects_to_push</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Uploads physical objects to the remote or some other external location.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>target</strong> – Target ObjectManager</p></li>
+<li><p><strong>objects_to_push</strong> – List of object IDs to upload.</p></li>
+<li><p><strong>handler</strong> – Name of the handler to use to upload objects. Use <cite>DB</cite> to push them to the remote, <cite>FILE</cite>
+to store them in a directory that can be accessed from the client and <cite>HTTP</cite> to upload them to HTTP.</p></li>
+<li><p><strong>handler_params</strong> – For <cite>HTTP</cite>, a dictionary <cite>&#38;lbrace;“username”: username, “password”, password&#38;rbrace;</cite>. For <cite>FILE</cite>,
+a dictionary <cite>&#38;lbrace;“path”: path&#38;rbrace;</cite> specifying the directory where the objects shall be saved.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of (object_id, url) that specifies all objects were uploaded (skipping objects that
+already exist on the remote).</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.registry">
+<span id="splitgraph-core-registry-module"></span><h2 id="splitgraphcoreregistry-module">splitgraph.core.registry module<a className="headerlink" href="#module-splitgraph.core.registry" title="Permalink to this headline">¶</a></h2>
+<p>Functions for communicating with the remote Splitgraph catalog</p>
+<dl className="py function">
+<dt id="splitgraph.core.registry.get_info_key">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">get_info_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.registry.get_info_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets a configuration key from the remote registry, used to notify the client of the registry’s capabilities.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – Engine</p></li>
+<li><p><strong>key</strong> – Key to get</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.registry.set_info_key">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">set_info_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">value</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bool<span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.registry.set_info_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets a configuration value on the remote registry.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – Engine</p></li>
+<li><p><strong>key</strong> – Key to set</p></li>
+<li><p><strong>value</strong> – New value for the key</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.registry.setup_registry_mode">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">setup_registry_mode</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.registry.setup_registry_mode" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set up access policies/RLS:</p>
+<ul className="simple">
+<li><p>Normal users aren’t allowed to create tables/schemata (can’t do checkouts inside of a registry or
+upload SG objects directly to it)</p></li>
+<li><p>Normal users can’t access the splitgraph_meta schema directly: they’re only supposed to be able to
+talk to it via stored procedures in splitgraph_api. Those procedures are set up with SECURITY INVOKER
+(run with those users’ credentials) and what they can access is further restricted by RLS:</p>
+<ul>
+<li><p>images/tables/tags meta tables: can only create/update/delete records where the namespace = user ID</p></li>
+<li><p>objects/object_location tables: same. An object (piece of data) becomes owned by the user that creates
+it and still remains so even if someone else’s image starts using it. Hence, the original owner can delete
+or change it (since they control the external location they’ve uploaded it to anyway).</p></li>
+</ul>
+</li>
+</ul>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.repository">
+<span id="splitgraph-core-repository-module"></span><h2 id="splitgraphcorerepository-module">splitgraph.core.repository module<a className="headerlink" href="#module-splitgraph.core.repository" title="Permalink to this headline">¶</a></h2>
+<p>Public API for managing images in a Splitgraph repository.</p>
+<dl className="py class">
+<dt id="splitgraph.core.repository.Repository">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">Repository</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">namespace</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_manager</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.repository.Repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Splitgraph repository API</p>
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">comment</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">snap_only</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">chunk_size</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">split_changeset</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">extra_indexes</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">in_fragment_order</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><a className="headerlink" href="#splitgraph.core.repository.Repository.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commits all pending changes to a given repository, creating a new image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>image_hash</strong> – Hash of the commit. Chosen by random if unspecified.</p></li>
+<li><p><strong>comment</strong> – Optional comment to add to the commit.</p></li>
+<li><p><strong>snap_only</strong> – If True, will store the table as a full snapshot instead of delta compression</p></li>
+<li><p><strong>chunk_size</strong> – For tables that are stored as snapshots (new tables and where <cite>snap_only</cite> has been passed,
+the table will be split into fragments of this many rows.</p></li>
+<li><p><strong>split_changeset</strong> – If True, splits the changeset into multiple fragments based on
+the PK regions spanned by the current table fragments. For example, if the original table
+consists of 2 fragments, first spanning rows 1-10000, second spanning rows 10001-20000 and the
+change alters rows 1, 10001 and inserts a row with PK 20001, this will record the change as
+3 fragments: one inheriting from the first original fragment, one inheriting from the second
+and a brand new fragment. This increases the number of fragments in total but means that fewer rows
+will need to be scanned to satisfy a query.
+If False, the changeset will be stored as a single fragment inheriting from the last fragment in the
+table.</p></li>
+<li><p><strong>extra_indexes</strong> – Dictionary of &#38;lbrace;table: index_type: column: index_specific_kwargs&#38;rbrace;.</p></li>
+<li><p><strong>in_fragment_order</strong> – Dictionary of &#38;lbrace;table: list of columns&#38;rbrace;. If specified, will</p></li>
+</ul>
+</dd>
+</dl>
+<p>sort the data inside each chunk by this/these key(s) for each table.
+:param overwrite: If an object already exists, will force recreate it.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>The newly created Image object.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.commit_engines">
+<code className="sig-name descname">commit_engines</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.commit_engines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the underlying transactions on both engines that the repository uses.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.delete">
+<code className="sig-name descname">delete</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">unregister</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em>, <em className="sig-param"><span className="n">uncheckout</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.delete" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discards all changes to a given repository and optionally all of its history,
+as well as deleting the Postgres schema that it might be checked out into.
+Doesn’t delete any cached physical objects.</p>
+<p>After performing this operation, this object becomes invalid and must be discarded,
+unless init() is called again.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>unregister</strong> – Whether to purge repository history/metadata</p></li>
+<li><p><strong>uncheckout</strong> – Whether to delete the actual checked out repo. This has no effect
+if the repository is backed by a registry (rather than a local engine).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.diff">
+<code className="sig-name descname">diff</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image_1</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">image_2</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>Union<span className="p">[</span>bool<span className="p">, </span>Tuple<span className="p">[</span>int<span className="p">, </span>int<span className="p">, </span>int<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Tuple<span className="p">[</span>bool<span className="p">, </span>Tuple<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.diff" title="Permalink to this definition">¶</a></dt>
+<dd><p>Compares the state of a table in different images by materializing both tables into a temporary space
+and comparing them row-to-row.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table_name</strong> – Name of the table.</p></li>
+<li><p><strong>image_1</strong> – First image hash / object. If None, uses the state of the current staging area.</p></li>
+<li><p><strong>image_2</strong> – Second image hash / object. If None, uses the state of the current staging area.</p></li>
+<li><p><strong>aggregate</strong> – If True, returns a tuple of integers denoting added, removed and updated rows between
+the two images.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If the table doesn’t exist in one of the images, returns True if it was added and False if it was
+removed. If <cite>aggregate</cite> is True, returns the aggregation of changes as specified before.
+Otherwise, returns a list of changes where each change is a tuple of
+<cite>(True for added, False for removed, row contents)</cite>.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.dump">
+<code className="sig-name descname">dump</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">exclude_object_contents</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.dump" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates an SQL dump with the metadata required for the repository and all of its objects.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>stream</strong> – Stream to dump the data into.</p></li>
+<li><p><strong>exclude_object_contents</strong> – Only dump the metadata but not the actual object contents.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.from_schema">
+<em className="property">classmethod </em><code className="sig-name descname">from_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.from_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Convert a Postgres schema name of the format <cite>namespace/repository</cite> to a Splitgraph repository object.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.from_template">
+<em className="property">classmethod </em><code className="sig-name descname">from_template</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">template</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">namespace</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.from_template" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a Repository from an existing one replacing some of its attributes.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_all_hashes_tags">
+<code className="sig-name descname">get_all_hashes_tags</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.get_all_hashes_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets all tagged images and their hashes in a given repository.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>List of (image_hash, tag)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_local_size">
+<code className="sig-name descname">get_local_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.repository.Repository.get_local_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the actual size used by this repository’s downloaded objects.</p>
+<p>This might still be double-counted if the repository shares objects
+with other repositores.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the repository in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.repository.Repository.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the repository’s data, counting objects that are used
+by multiple images only once. This is calculated from the metadata, the on-disk
+footprint might be smaller if not all of repository’s objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the repository in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.repository.Repository.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Detects if the repository has any pending changes (schema changes, table additions/deletions, content changes).</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.head">
+<em className="property">property </em><code className="sig-name descname">head</code><a className="headerlink" href="#splitgraph.core.repository.Repository.head" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the HEAD image for the repository or None if the repository isn’t checked out.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.head_strict">
+<em className="property">property </em><code className="sig-name descname">head_strict</code><a className="headerlink" href="#splitgraph.core.repository.Repository.head_strict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the HEAD image for the repository. Raise an exception if the repository
+isn’t checked out.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.import_tables">
+<code className="sig-name descname">import_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">source_tables</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">foreign_tables</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">do_checkout</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">table_queries</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>bool<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">parent_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em>, <em className="sig-param"><span className="n">skip_validation</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.core.repository.Repository.import_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a new commit in target_repository with one or more tables linked to already-existing tables.
+After this operation, the HEAD of the target repository moves to the new commit and the new tables are
+materialized.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>tables</strong> – If not empty, must be the list of the same length as <cite>source_tables</cite> specifying names to store
+them under in the target repository.</p></li>
+<li><p><strong>source_repository</strong> – Repository to import tables from.</p></li>
+<li><p><strong>source_tables</strong> – List of tables to import. If empty, imports all tables.</p></li>
+<li><p><strong>image_hash</strong> – Image hash in the source repository to import tables from.
+Uses the current source HEAD by default.</p></li>
+<li><p><strong>foreign_tables</strong> – If True, copies all source tables to create a series of new snapshots instead of
+treating them as Splitgraph-versioned tables. This is useful for adding brand new tables
+(for example, from an FDW-mounted table).</p></li>
+<li><p><strong>do_checkout</strong> – If False, doesn’t check out the newly created image.</p></li>
+<li><p><strong>target_hash</strong> – Hash of the new image that tables is recorded under. If None, gets chosen at random.</p></li>
+<li><p><strong>table_queries</strong> – If not [], it’s treated as a Boolean mask showing which entries in the <cite>tables</cite> list are
+instead SELECT SQL queries that form the target table. The queries have to be non-schema qualified and work
+only against tables in the source repository. Each target table created is the result of the respective SQL
+query. This is committed as a new snapshot.</p></li>
+<li><p><strong>parent_hash</strong> – If not None, must be the hash of the image to base the new image on.
+Existing tables from the parent image are preserved in the new image. If None, the current repository
+HEAD is used.</p></li>
+<li><p><strong>wrapper</strong> – Override the default class for the layered querying foreign data wrapper.</p></li>
+<li><p><strong>skip_validation</strong> – Don’t validate SQL used in import statements (used by the Splitfile executor that pre-formats the SQL).</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Hash that the new image was stored under.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.init">
+<code className="sig-name descname">init</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.init" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes an empty repo with an initial commit (hash 0000…)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.materialized_table">
+<code className="sig-name descname">materialized_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.materialized_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>A context manager that returns a pointer to a read-only materialized table in a given image.
+The table is deleted on exit from the context manager.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table_name</strong> – Name of the table</p></li>
+<li><p><strong>image_hash</strong> – Image hash to materialize</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>(schema, table_name) where the materialized table is located.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.pull">
+<code className="sig-name descname">pull</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.pull" title="Permalink to this definition">¶</a></dt>
+<dd><p>Synchronizes the state of the local Splitgraph repository with its upstream, optionally downloading all new
+objects created on the remote.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>download_all</strong> – If True, downloads all objects and stores them locally. Otherwise, will only download
+required objects when a table is checked out.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the local repository for existing objects.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags.</p></li>
+<li><p><strong>single_image</strong> – Limit the download to a single image hash/tag.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.push">
+<code className="sig-name descname">push</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">reupload_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.push" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inverse of <code className="docutils literal notranslate"><span className="pre">pull</span></code>: Pushes all local changes to the remote and uploads new objects.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote repository to push changes to. If not specified, the current
+upstream is used.</p></li>
+<li><p><strong>handler</strong> – Name of the handler to use to upload objects. Use <cite>DB</cite> to push them to the remote or <cite>S3</cite>
+to store them in an S3 bucket.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the remote repository for existing objects.</p></li>
+<li><p><strong>reupload_objects</strong> – If True, will reupload objects for which metadata is uploaded.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags on the remote repository.</p></li>
+<li><p><strong>handler_options</strong> – Extra options to pass to the handler. For example, see
+<a className="reference internal" href="splitgraph.hooks/#splitgraph.hooks.s3.S3ExternalObjectHandler" title="splitgraph.hooks.s3.S3ExternalObjectHandler"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.hooks.s3.S3ExternalObjectHandler</span></code></a>.</p></li>
+<li><p><strong>single_image</strong> – Limit the upload to a single image hash/tag.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.rollback_engines">
+<code className="sig-name descname">rollback_engines</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.rollback_engines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the underlying transactions on both engines that the repository uses.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">sql: Union[psycopg2.sql.Composed, str], arguments: Optional[Any] = None, return_shape: splitgraph.engine.ResultShape = &lt;ResultShape.MANY_MANY: 4></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.core.repository.Repository.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute an arbitrary SQL statement inside of this repository’s checked out schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.set_tags">
+<code className="sig-name descname">set_tags</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tags</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.set_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets tags for multiple images.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tags</strong> – List of (image_hash, tag)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.to_schema">
+<code className="sig-name descname">to_schema</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.core.repository.Repository.to_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the engine schema that this repository gets checked out into.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.uncheckout">
+<code className="sig-name descname">uncheckout</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">force</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.uncheckout" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes the schema that the repository is checked out into</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>force</strong> – Discards all pending changes to the schema.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.upstream">
+<em className="property">property </em><code className="sig-name descname">upstream</code><a className="headerlink" href="#splitgraph.core.repository.Repository.upstream" title="Permalink to this definition">¶</a></dt>
+<dd><p>The remote upstream repository that this local repository tracks.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.clone">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">clone</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">local_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.clone" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clones a remote Splitgraph repository or synchronizes remote changes with the local ones.</p>
+<p>If the target repository has no set upstream engine, the source repository becomes its upstream.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote Repository object to clone or the repository’s name. If a name is passed,
+the repository will be looked up on the current lookup path in order to find the engine the repository
+belongs to.</p></li>
+<li><p><strong>local_repository</strong> – Local repository to clone into. If None, uses the same name as the remote.</p></li>
+<li><p><strong>download_all</strong> – If True, downloads all objects and stores them locally. Otherwise, will only download required
+objects when a table is checked out.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the local repository for existing objects.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags.</p></li>
+<li><p><strong>single_image</strong> – If set, only get a single image with this hash/tag from the source.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A locally cloned Repository object.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.getrandbits">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.core.repository.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.import_table_from_remote">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">import_table_from_remote</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">remote_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">target_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.import_table_from_remote" title="Permalink to this definition">¶</a></dt>
+<dd><p>Shorthand for importing one or more tables from a yet-uncloned remote. Here, the remote image hash is required,
+as otherwise we aren’t necessarily able to determine what the remote head is.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote Repository object</p></li>
+<li><p><strong>remote_tables</strong> – List of remote tables to import</p></li>
+<li><p><strong>remote_image_hash</strong> – Image hash to import the tables from</p></li>
+<li><p><strong>target_repository</strong> – Target repository to import the tables to</p></li>
+<li><p><strong>target_tables</strong> – Target table aliases</p></li>
+<li><p><strong>target_hash</strong> – Hash of the image that’s created with the import. Default random.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.table_exists_at">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">table_exists_at</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.repository.table_exists_at" title="Permalink to this definition">¶</a></dt>
+<dd><p>Determines whether a given table exists in a Splitgraph image without checking it out. If <cite>image_hash</cite> is None,
+determines whether the table exists in the current staging area.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.table">
+<span id="splitgraph-core-table-module"></span><h2 id="splitgraphcoretable-module">splitgraph.core.table module<a className="headerlink" href="#module-splitgraph.core.table" title="Permalink to this headline">¶</a></h2>
+<p>Table metadata-related classes.</p>
+<dl className="py class">
+<dt id="splitgraph.core.table.QueryPlan">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">QueryPlan</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.table.Table" title="splitgraph.core.table.Table">splitgraph.core.table.Table</a></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.QueryPlan" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Represents the initial query plan (fragments to query) for given columns and
+qualifiers.</p>
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.core.table.Table">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">Table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em>, <em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n">Image</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_schema</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.Table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Represents a Splitgraph table in a given image. Shouldn’t be created directly, use Table-loading
+methods in the <a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.image.Image</span></code></a> class instead.</p>
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_length">
+<code className="sig-name descname">get_length</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.table.Table.get_length" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the number of rows in this table.</p>
+<p>This might be smaller than the total number of rows in all objects belonging to this
+table as some objects might overwrite each other.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Number of rows in table</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_query_plan">
+<code className="sig-name descname">get_query_plan</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">use_cache</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.table.QueryPlan" title="splitgraph.core.table.QueryPlan">splitgraph.core.table.QueryPlan</a><a className="headerlink" href="#splitgraph.core.table.Table.get_query_plan" title="Permalink to this definition">¶</a></dt>
+<dd><p>Start planning a query (preliminary steps before object downloading,
+like qualifier filtering).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>quals</strong> – Qualifiers in CNF form</p></li>
+<li><p><strong>columns</strong> – List of columns</p></li>
+<li><p><strong>use_cache</strong> – If True, will fetch the plan from the cache for the same qualifiers and columns.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>QueryPlan</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.table.Table.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the table’s objects (including those shared with other tables).</p>
+<p>This is calculated from the metadata, the on-disk footprint might be smaller if not all of table’s
+objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the table in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.materialize">
+<code className="sig-name descname">materialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">destination</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">destination_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">lq_server</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.table.Table.materialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Materializes a Splitgraph table in the target schema as a normal Postgres table, potentially downloading all
+required objects and using them to reconstruct the table.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>destination</strong> – Name of the destination table.</p></li>
+<li><p><strong>destination_schema</strong> – Name of the destination schema.</p></li>
+<li><p><strong>lq_server</strong> – If set, sets up a layered querying FDW for the table instead using this foreign server.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query">
+<code className="sig-name descname">query</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.Table.query" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it.</p>
+<p>This is a wrapper around query_lazy() that force evaluates the results which
+might mean more fragments being materialized that aren’t needed.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of dictionaries of results</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query_indirect">
+<code className="sig-name descname">query_indirect</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Tuple<span className="p">[</span>Iterator<span className="p">[</span>bytes<span className="p">]</span><span className="p">, </span>Callable<span className="p">, </span><a className="reference internal" href="#splitgraph.core.table.QueryPlan" title="splitgraph.core.table.QueryPlan">splitgraph.core.table.QueryPlan</a><span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.query_indirect" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it. Instead of
+actual results, this returns a generator of SQL queries that the caller can use
+to get the results as well as a callback that the caller has to run after they’re
+done consuming the results.</p>
+<p>In particular, the query generator will prefer returning direct queries to
+Splitgraph objects and only when those are exhausted will it start materializing
+delta-compressed fragments.</p>
+<p>This is an advanced method: you probably want to call table.query().</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Generator of queries (bytes), a callback and a query plan object (containing stats
+that are fully populated after the callback has been called to end the query).</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query_lazy">
+<code className="sig-name descname">query_lazy</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Iterator<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.query_lazy" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Generator of dictionaries of results.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.reindex">
+<code className="sig-name descname">reindex</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">extra_indexes</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">raise_on_patch_objects</span><span className="o">=</span><span className="default_value">True</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.reindex" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run extra indexes on all objects in this table and update their metadata.
+This only works on objects that don’t have any deletions or upserts (have a deletion hash of 000000…).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>extra_indexes</strong> – Dictionary of &#38;lbrace;index_type: column: index_specific_kwargs&#38;rbrace;.</p></li>
+<li><p><strong>raise_on_patch_objects</strong> – If True, will raise an exception if any objects in the table
+overwrite any other objects. If False, will log a warning but will reindex all non-patch objects.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:returns List of objects that were reindexed.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.table.create_foreign_table">
+<code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">create_foreign_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">internal_table_name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.create_foreign_table" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.table.merge_index_data">
+<code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">merge_index_data</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">current_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">new_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.merge_index_data" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.engine.mdx b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.engine.mdx
new file mode 100644
index 00000000..c829cda8
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.engine.mdx
@@ -0,0 +1,553 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.engine package",
+  id: "splitgraph.engine package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#subpackages">Subpackages</a></li></ol></nav><div className="section" id="module-splitgraph.engine">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.engine" title="Permalink to this headline">¶</a></h2>
+<p>Defines the interface for a Splitgraph engine (a backing database), including running basic SQL commands,
+tracking tables for changes and uploading/downloading tables to other remote engines.</p>
+<p>By default, Splitgraph is backed by Postgres: see <a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres" title="splitgraph.engine.postgres"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.engine.postgres</span></code></a> for an example of how to
+implement a different engine.</p>
+<dl className="py class">
+<dt id="splitgraph.engine.ChangeEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ChangeEngine</code><a className="headerlink" href="#splitgraph.engine.ChangeEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.SQLEngine" title="splitgraph.engine.SQLEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.SQLEngine</span></code></a>, <code className="xref py py-class docutils literal notranslate"><span className="pre">abc.ABC</span></code></p>
+<p>An SQL engine that can perform change tracking on a set of tables.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.discard_pending_changes">
+<code className="sig-name descname">discard_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.discard_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discard recorded pending changes for a tracked table or the whole schema</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_change_key">
+<code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the key used to identify a row in a change (list of column name, column type).
+If the tracked table has a PK, we use that; if it doesn’t, the whole row is used.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_changed_tables">
+<code className="sig-name descname">get_changed_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_changed_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>List tracked tables that have pending changes</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>schema</strong> – Schema to check for changes</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of tables with changed contents</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_pending_changes">
+<code className="sig-name descname">get_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="o">=</span><span className="default_value">False</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return pending changes for a given tracked table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema the table belongs to</p></li>
+<li><p><strong>table</strong> – Table to return changes for</p></li>
+<li><p><strong>aggregate</strong> – Whether to aggregate changes or return them completely</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If aggregate is True: tuple with numbers of <cite>(added_rows, removed_rows, updated_rows)</cite>.
+If aggregate is False: A changeset. The changeset is a list of
+<cite>(pk, action (0 for Insert, 1 for Delete, 2 for Update), action_data)</cite>
+where <cite>action_data</cite> is <cite>None</cite> for Delete and <cite>&#38;lbrace;‘c’: [column_names], ‘v’: [column_values]&#38;rbrace;</cite> that
+have been inserted/updated otherwise.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_tracked_tables">
+<code className="sig-name descname">get_tracked_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_tracked_tables" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>A list of (table_schema, table_name) that the engine currently tracks for changes</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return True if the tracked schema has pending changes and False if it doesn’t.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.track_tables">
+<code className="sig-name descname">track_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.track_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Start engine-specific change tracking on a list of tables.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tables</strong> – List of (table_schema, table_name) to start tracking</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.untrack_tables">
+<code className="sig-name descname">untrack_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.untrack_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stop engine-specific change tracking on a list of tables and delete any pending changes.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tables</strong> – List of (table_schema, table_name) to start tracking</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.ObjectEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ObjectEngine</code><a className="headerlink" href="#splitgraph.engine.ObjectEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Routines for storing/applying objects as well as sharing them with other engines.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.apply_fragments">
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">target_schema</span></em>, <em className="sig-param"><span className="n">target_table</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_schema, object_table)</cite> that the objects are stored in.</p></li>
+<li><p><strong>target_schema</strong> – Schema to apply the fragment to</p></li>
+<li><p><strong>target_table</strong> – Table to apply the fragment to</p></li>
+<li><p><strong>extra_quals</strong> – Optional, extra SQL (Composable) clauses to filter new rows in the fragment on
+(e.g. SQL(“a = %s”))</p></li>
+<li><p><strong>extra_qual_args</strong> – Optional, a tuple of arguments to use with <cite>extra_quals</cite></p></li>
+<li><p><strong>schema_spec</strong> – Optional, list of (ordinal, column_name, column_type, is_pk).
+If not specified, uses the schema of target_table.</p></li>
+<li><p><strong>progress_every</strong> – If set, will report the materialization progress via
+tqdm every <cite>progress_every</cite> objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.delete_objects">
+<code className="sig-name descname">delete_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.delete_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete one or more objects from the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_ids</strong> – IDs of objects to delete</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">remote_engine</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the remote engine to the local cache</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to download</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to download the objects from.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:return List of object IDs that were downloaded.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.dump_object">
+<code className="sig-name descname">dump_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em>, <em className="sig-param"><span className="n">stream</span></em>, <em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.dump_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump an object into a series of SQL statements</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Object ID</p></li>
+<li><p><strong>stream</strong> – Text stream to dump the object into</p></li>
+<li><p><strong>schema</strong> – Schema the object lives in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.get_object_schema">
+<code className="sig-name descname">get_object_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.get_object_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the schema of a given object, returned as a list of
+(ordinal, column_name, column_type, is_pk).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_id</strong> – ID of the object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.get_object_size">
+<code className="sig-name descname">get_object_size</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.get_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the on-disk footprint of this object, in bytes
+:param object_id: ID of the object</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.store_fragment">
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span></em>, <em className="sig-param"><span className="n">deleted</span></em>, <em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">source_schema</span></em>, <em className="sig-param"><span className="n">source_table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Store a fragment of a changed table in another table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>inserted</strong> – List of PKs that have been updated/inserted</p></li>
+<li><p><strong>deleted</strong> – List of PKs that have been deleted</p></li>
+<li><p><strong>schema</strong> – Schema to store the change in</p></li>
+<li><p><strong>table</strong> – Table to store the change in</p></li>
+<li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
+<li><p><strong>source_table</strong> – Name of the source table</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.store_object">
+<code className="sig-name descname">store_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_query</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bytes<span className="p">, </span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">, </span>psycopg2.sql.SQL<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_query_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Any<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stores a Splitgraph object using a source query in the actual format
+implemented by this engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>source_query</strong> – SELECT query that produces data required by the object</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the source table</p></li>
+<li><p><strong>source_query_args</strong> – Arguments to mogrify into the source query.</p></li>
+<li><p><strong>overwrite</strong> – If True, will overwrite the object if it already exists.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">remote_engine</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the local cache to the remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to upload the objects to.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.ResultShape">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ResultShape</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">value</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ResultShape" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">enum.Enum</span></code></p>
+<p>Shape that the result of a query will be coerced to</p>
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.MANY_MANY">
+<code className="sig-name descname">MANY_MANY</code><em className="property"> = 4</em><a className="headerlink" href="#splitgraph.engine.ResultShape.MANY_MANY" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.MANY_ONE">
+<code className="sig-name descname">MANY_ONE</code><em className="property"> = 3</em><a className="headerlink" href="#splitgraph.engine.ResultShape.MANY_ONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.NONE">
+<code className="sig-name descname">NONE</code><em className="property"> = 0</em><a className="headerlink" href="#splitgraph.engine.ResultShape.NONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.ONE_MANY">
+<code className="sig-name descname">ONE_MANY</code><em className="property"> = 2</em><a className="headerlink" href="#splitgraph.engine.ResultShape.ONE_MANY" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.ONE_ONE">
+<code className="sig-name descname">ONE_ONE</code><em className="property"> = 1</em><a className="headerlink" href="#splitgraph.engine.ResultShape.ONE_ONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.SQLEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">SQLEngine</code><a className="headerlink" href="#splitgraph.engine.SQLEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">abc.ABC</span></code></p>
+<p>Abstraction for a Splitgraph SQL backend. Requires any overriding classes to implement <cite>run_sql</cite> as well as
+a few other functions. Together with the <cite>information_schema</cite> (part of the SQL standard), this class uses those
+functions to implement some basic database management methods like listing, deleting, creating, dumping
+and loading tables.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.close">
+<code className="sig-name descname">close</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.close" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit and close the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.copy_table">
+<code className="sig-name descname">copy_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">with_pk_constraints</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.copy_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Copy a table in the same engine, optionally applying primary key constraints as well.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.create_schema">
+<code className="sig-name descname">create_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.create_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a schema if it doesn’t exist</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.create_table">
+<code className="sig-name descname">create_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">unlogged</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">include_comments</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.create_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a table using a previously-dumped table schema spec</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Table name to create</p></li>
+<li><p><strong>schema_spec</strong> – TableSchema</p></li>
+<li><p><strong>unlogged</strong> – If True, the table won’t be reflected in the WAL or scanned by the analyzer/autovacuum.</p></li>
+<li><p><strong>temporary</strong> – If True, a temporary table is created (the schema parameter is ignored)</p></li>
+<li><p><strong>include_comments</strong> – If True, also adds COMMENT statements for columns that have them.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.delete_schema">
+<code className="sig-name descname">delete_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.delete_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete a schema if it exists, including all the tables in it.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.delete_table">
+<code className="sig-name descname">delete_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.delete_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Drop a table from a schema if it exists</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.dump_table_creation">
+<em className="property">static </em><code className="sig-name descname">dump_table_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">unlogged</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">include_comments</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Tuple<span className="p">[</span>psycopg2.sql.Composed<span className="p">, </span>Tuple<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.dump_table_creation" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dumps the DDL for a table using a previously-dumped table schema spec</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Table name to create</p></li>
+<li><p><strong>schema_spec</strong> – TableSchema</p></li>
+<li><p><strong>unlogged</strong> – If True, the table won’t be reflected in the WAL or scanned by the analyzer/autovacuum.</p></li>
+<li><p><strong>temporary</strong> – If True, a temporary table is created (the schema parameter is ignored)</p></li>
+<li><p><strong>include_comments</strong> – If True, also adds COMMENT statements for columns that have them.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>An SQL statement that reconstructs the table schema + args to be mogrified into it.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.dump_table_sql">
+<code className="sig-name descname">dump_table_sql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table_name</span></em>, <em className="sig-param"><span className="n">stream</span></em>, <em className="sig-param"><span className="n">columns</span><span className="o">=</span><span className="default_value">'*'</span></em>, <em className="sig-param"><span className="n">where</span><span className="o">=</span><span className="default_value">''</span></em>, <em className="sig-param"><span className="n">where_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.dump_table_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump the table contents in the SQL format
+:param schema: Schema the table is located in
+:param table_name: Name of the table
+:param stream: A file-like object to write the result into.
+:param columns: SQL column spec. Default ‘*’.
+:param where: Optional, an SQL WHERE clause
+:param where_args: Arguments for the optional WHERE clause.
+:param target_schema: Schema to create the table in (default same as <cite>schema</cite>)
+:param target_table: Name of the table to insert data into (default same as <cite>table_name</cite>)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_all_tables">
+<code className="sig-name descname">get_all_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_all_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get all tables in a given schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_full_table_schema">
+<code className="sig-name descname">get_full_table_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_full_table_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Generates a list of (column ordinal, name, data type, is_pk, column comment),
+used to detect schema changes like columns being dropped/added/renamed or type changes.</p>
+<p>NB this doesn’t work for temporary tables (pg_temp) and returns an empty schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_primary_keys">
+<code className="sig-name descname">get_primary_keys</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_primary_keys" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a list of (column_name, column_type) denoting the primary keys of a given table.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_table_type">
+<code className="sig-name descname">get_table_type</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_table_type" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the type of the table (BASE or FOREIGN)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.initialize">
+<code className="sig-name descname">initialize</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.initialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Does any required initialization of the engine</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.lock_table">
+<code className="sig-name descname">lock_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.lock_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Acquire an exclusive lock on a given table, released when the transaction commits / rolls back.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.rollback">
+<code className="sig-name descname">rollback</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.rollback" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">statement</em>, <em className="sig-param">arguments=None</em>, <em className="sig-param">return_shape=&lt;ResultShape.MANY_MANY: 4></em>, <em className="sig-param">named=False</em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an arbitrary SQL statement with some arguments, return an iterator of results.
+If the statement doesn’t return any results, return None. If named=True, return named
+tuples when possible.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql_batch">
+<code className="sig-name descname">run_sql_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">statement</span></em>, <em className="sig-param"><span className="n">arguments</span></em>, <em className="sig-param"><span className="n">schema</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql_batch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a parameterized SQL statement against multiple sets of arguments.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>statement</strong> – Statement to run</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>schema</strong> – Schema to run the statement in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql_in">
+<code className="sig-name descname">run_sql_in</code><span className="sig-paren">(</span><em className="sig-param">schema: str, sql: Union[psycopg2.sql.Composed, str], arguments: None = None, return_shape: splitgraph.engine.ResultShape = &lt;ResultShape.MANY_MANY: 4></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql_in" title="Permalink to this definition">¶</a></dt>
+<dd><p>Executes a non-schema-qualified query against a specific schema.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to run the query in</p></li>
+<li><p><strong>sql</strong> – Query</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>return_shape</strong> – ReturnShape to coerce the result into.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.savepoint">
+<code className="sig-name descname">savepoint</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>None<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.savepoint" title="Permalink to this definition">¶</a></dt>
+<dd><p>At the beginning of this context manager, a savepoint is initialized and any database
+error that occurs in run_sql results in a rollback to this savepoint rather than the
+rollback of the whole transaction. At exit, the savepoint is released.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.schema_exists">
+<code className="sig-name descname">schema_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.SQLEngine.schema_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if a schema exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>schema</strong> – Schema name</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.table_exists">
+<code className="sig-name descname">table_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.SQLEngine.table_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if a table exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema name</p></li>
+<li><p><strong>table_name</strong> – Table name</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.get_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">get_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">use_socket</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">use_fdw_params</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → PostgresEngine<a className="headerlink" href="#splitgraph.engine.get_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the current global engine or a named remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>name</strong> – Name of the remote engine as specified in the config. If None, the current global engine
+is returned.</p></li>
+<li><p><strong>use_socket</strong> – Use a local UNIX socket instead of PG_HOST, PG_PORT for LOCAL engine connections.</p></li>
+<li><p><strong>use_fdw_params</strong> – Use the _FDW connection parameters (SG_ENGINE_FDW_HOST/PORT). By default,
+will infer from the global splitgraph.config.IN_FDW flag.</p></li>
+<li><p><strong>autocommit</strong> – If True, the engine will not open SQL transactions implicitly.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.set_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">set_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.set_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Switch the global engine to a different one.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.switch_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">switch_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>None<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.switch_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Switch the global engine to a different one. The engine will
+get switched back on exit from the context manager.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+</dl>
+</dd></dl>
+
+</div><div className="section" id="splitgraph-engine-package">
+
+<div className="section" id="subpackages">
+<h2 id="subpackages">Subpackages<a className="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
+<div className="toctree-wrapper compound">
+<ul>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.engine.postgres/">splitgraph.engine.postgres package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres.engine">splitgraph.engine.postgres.engine module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.engine.postgres.mdx b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.engine.postgres.mdx
new file mode 100644
index 00000000..fac9f4c5
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.engine.postgres.mdx
@@ -0,0 +1,443 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.engine.postgres package",
+  id: "splitgraph.engine.postgres package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphenginepostgresengine-module">splitgraph.engine.postgres.engine module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.engine.postgres">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.engine.postgres" title="Permalink to this headline">¶</a></h2>
+</div><div className="section" id="splitgraph-engine-postgres-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.engine.postgres.engine">
+<span id="splitgraph-engine-postgres-engine-module"></span><h2 id="splitgraphenginepostgresengine-module">splitgraph.engine.postgres.engine module<a className="headerlink" href="#module-splitgraph.engine.postgres.engine" title="Permalink to this headline">¶</a></h2>
+<p>Default Splitgraph engine: uses PostgreSQL to store metadata and actual objects and an audit stored procedure
+to track changes, as well as the Postgres FDW interface to upload/download objects to/from other Postgres engines.</p>
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">AuditTriggerChangeEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.postgres.engine.PsycopgEngine" title="splitgraph.engine.postgres.engine.PsycopgEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.postgres.engine.PsycopgEngine</span></code></a>, <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.ChangeEngine" title="splitgraph.engine.ChangeEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.ChangeEngine</span></code></a></p>
+<p>Change tracking based on an audit trigger stored procedure</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.discard_pending_changes">
+<code className="sig-name descname">discard_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.discard_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discard recorded pending changes for a tracked schema / table</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_changed_tables">
+<code className="sig-name descname">get_changed_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_changed_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get list of tables that have changed content</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_pending_changes">
+<code className="sig-name descname">get_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Union<span className="p">[</span>List<span className="p">[</span>Tuple<span className="p">[</span>int<span className="p">, </span>int<span className="p">]</span><span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Tuple<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span><span className="p">…</span><span className="p">]</span><span className="p">, </span>bool<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return pending changes for a given tracked table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema the table belongs to</p></li>
+<li><p><strong>table</strong> – Table to return changes for</p></li>
+<li><p><strong>aggregate</strong> – Whether to aggregate changes or return them completely</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If aggregate is True: List of tuples of (change_type, number of rows).
+If aggregate is False: List of (primary_key, change_type, change_data)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_tracked_tables">
+<code className="sig-name descname">get_tracked_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_tracked_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a list of tables that the audit trigger is working on.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return True if the tracked schema has pending changes and False if it doesn’t.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.track_tables">
+<code className="sig-name descname">track_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.track_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Install the audit trigger on the required tables</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.untrack_tables">
+<code className="sig-name descname">untrack_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.untrack_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Remove triggers from tables and delete their pending changes</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">PostgresEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine" title="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.postgres.engine.AuditTriggerChangeEngine</span></code></a>, <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.ObjectEngine" title="splitgraph.engine.ObjectEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.ObjectEngine</span></code></a></p>
+<p>An implementation of the Postgres engine for Splitgraph</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments">
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.sql.Composed<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_schema, object_table)</cite> that the objects are stored in.</p></li>
+<li><p><strong>target_schema</strong> – Schema to apply the fragment to</p></li>
+<li><p><strong>target_table</strong> – Table to apply the fragment to</p></li>
+<li><p><strong>extra_quals</strong> – Optional, extra SQL (Composable) clauses to filter new rows in the fragment on
+(e.g. SQL(“a = %s”))</p></li>
+<li><p><strong>extra_qual_args</strong> – Optional, a tuple of arguments to use with <cite>extra_quals</cite></p></li>
+<li><p><strong>schema_spec</strong> – Optional, list of (ordinal, column_name, column_type, is_pk).
+If not specified, uses the schema of target_table.</p></li>
+<li><p><strong>progress_every</strong> – If set, will report the materialization progress via
+tqdm every <cite>progress_every</cite> objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.delete_objects">
+<code className="sig-name descname">delete_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.delete_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete one or more objects from the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_ids</strong> – IDs of objects to delete</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the remote engine to the local cache</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to download</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to download the objects from.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:return List of object IDs that were downloaded.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object">
+<code className="sig-name descname">dump_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump an object into a series of SQL statements</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Object ID</p></li>
+<li><p><strong>stream</strong> – Text stream to dump the object into</p></li>
+<li><p><strong>schema</strong> – Schema the object lives in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation">
+<code className="sig-name descname">dump_object_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">if_not_exists</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → bytes<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation" title="Permalink to this definition">¶</a></dt>
+<dd><p>Generate the SQL that remounts a foreign table pointing to a Splitgraph object.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Name of the table to mount</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the table</p></li>
+<li><p><strong>if_not_exists</strong> – Add IF NOT EXISTS to the DDL</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>SQL in bytes format.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_change_key">
+<code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the key used to identify a row in a change (list of column name, column type).
+If the tracked table has a PK, we use that; if it doesn’t, the whole row is used.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_object_schema">
+<code className="sig-name descname">get_object_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_object_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the schema of a given object, returned as a list of
+(ordinal, column_name, column_type, is_pk).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_id</strong> – ID of the object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_object_size">
+<code className="sig-name descname">get_object_size</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the on-disk footprint of this object, in bytes
+:param object_id: ID of the object</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.mount_object">
+<code className="sig-name descname">mount_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_meta'</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.mount_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount an object from local storage as a foreign table.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – ID of the object</p></li>
+<li><p><strong>table</strong> – Table to mount the object into</p></li>
+<li><p><strong>schema</strong> – Schema to mount the object into</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the object.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.rename_object">
+<code className="sig-name descname">rename_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">old_object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">new_object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.rename_object" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_fragment">
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">deleted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Store a fragment of a changed table in another table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>inserted</strong> – List of PKs that have been updated/inserted</p></li>
+<li><p><strong>deleted</strong> – List of PKs that have been deleted</p></li>
+<li><p><strong>schema</strong> – Schema to store the change in</p></li>
+<li><p><strong>table</strong> – Table to store the change in</p></li>
+<li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
+<li><p><strong>source_table</strong> – Name of the source table</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_object">
+<code className="sig-name descname">store_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_query</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bytes<span className="p">, </span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">, </span>psycopg2.sql.SQL<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_query_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="o">=</span><span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stores a Splitgraph object using a source query in the actual format
+implemented by this engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>source_query</strong> – SELECT query that produces data required by the object</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the source table</p></li>
+<li><p><strong>source_query_args</strong> – Arguments to mogrify into the source query.</p></li>
+<li><p><strong>overwrite</strong> – If True, will overwrite the object if it already exists.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.sync_object_mounts">
+<code className="sig-name descname">sync_object_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.sync_object_mounts" title="Permalink to this definition">¶</a></dt>
+<dd><p>Scan through local object storage and synchronize it with the foreign tables in
+splitgraph_meta (unmounting non-existing objects and mounting existing ones).</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.unmount_objects">
+<code className="sig-name descname">unmount_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.unmount_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Unmount objects from splitgraph_meta (this doesn’t delete the physical files.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the local cache to the remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to upload the objects to.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">PsycopgEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.SQLEngine" title="splitgraph.engine.SQLEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.SQLEngine</span></code></a></p>
+<p>Postgres SQL engine backed by a Psycopg connection.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.close">
+<code className="sig-name descname">close</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.close" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit and close the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.close_others">
+<code className="sig-name descname">close_others</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.close_others" title="Permalink to this definition">¶</a></dt>
+<dd><p>Close and release all other connections to the connection pool.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.connection">
+<em className="property">property </em><code className="sig-name descname">connection</code><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.connection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Engine-internal Psycopg connection.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.delete_database">
+<code className="sig-name descname">delete_database</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">database</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.delete_database" title="Permalink to this definition">¶</a></dt>
+<dd><p>Helper function to drop a database using the admin connection</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>database</strong> – Database name to drop</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.dump_table_sql">
+<code className="sig-name descname">dump_table_sql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'*'</span></em>, <em className="sig-param"><span className="n">where</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">''</span></em>, <em className="sig-param"><span className="n">where_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.dump_table_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump the table contents in the SQL format
+:param schema: Schema the table is located in
+:param table_name: Name of the table
+:param stream: A file-like object to write the result into.
+:param columns: SQL column spec. Default ‘*’.
+:param where: Optional, an SQL WHERE clause
+:param where_args: Arguments for the optional WHERE clause.
+:param target_schema: Schema to create the table in (default same as <cite>schema</cite>)
+:param target_table: Name of the table to insert data into (default same as <cite>table_name</cite>)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.get_primary_keys">
+<code className="sig-name descname">get_primary_keys</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.get_primary_keys" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inspects the Postgres information_schema to get the primary keys for a given table.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.initialize">
+<code className="sig-name descname">initialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">skip_object_handling</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">skip_create_database</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.initialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create the Splitgraph Postgres database and install the audit trigger</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>skip_object_handling</strong> – If True, skips installation of
+audit triggers and other object management routines for engines
+that don’t need change tracking or checkouts.</p></li>
+<li><p><strong>skip_create_database</strong> – Don’t create the Splitgraph database</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.lock_table">
+<code className="sig-name descname">lock_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.lock_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Acquire an exclusive lock on a given table, released when the transaction commits / rolls back.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.rollback">
+<code className="sig-name descname">rollback</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.rollback" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call">
+<code className="sig-name descname">run_api_call</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">call</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">*</span><span className="n">args</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_api'</span></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call_batch">
+<code className="sig-name descname">run_api_call_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">call</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">argslist</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_api'</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call_batch" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_chunked_sql">
+<code className="sig-name descname">run_chunked_sql</code><span className="sig-paren">(</span><em className="sig-param">statement: Union[bytes, psycopg2.sql.Composed, str, psycopg2.sql.SQL], arguments: Sequence[Any], return_shape: Optional[splitgraph.engine.ResultShape] = &lt;ResultShape.MANY_MANY: 4>, chunk_size: int = 1000, chunk_position: int = -1</em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_chunked_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Because the Splitgraph API has a request size limitation, certain
+SQL calls with variadic arguments are going to be too long to fit that. This function
+runs an SQL query against a set of broken up arguments and returns the combined result.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">statement: Union[bytes, psycopg2.sql.Composed, str, psycopg2.sql.SQL], arguments: Optional[Sequence[Any]] = None, return_shape: Optional[splitgraph.engine.ResultShape] = &lt;ResultShape.MANY_MANY: 4>, named: bool = False</em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an arbitrary SQL statement with some arguments, return an iterator of results.
+If the statement doesn’t return any results, return None. If named=True, return named
+tuples when possible.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_sql_batch">
+<code className="sig-name descname">run_sql_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">statement</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">arguments</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">max_size</span><span className="o">=</span><span className="default_value">261000</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_sql_batch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a parameterized SQL statement against multiple sets of arguments.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>statement</strong> – Statement to run</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>schema</strong> – Schema to run the statement in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.splitgraph_version">
+<em className="property">property </em><code className="sig-name descname">splitgraph_version</code><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.splitgraph_version" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the version of the Splitgraph library installed on the engine
+and by association the version of the engine itself.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.add_ud_flag_column">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">add_ud_flag_column</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_schema</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.add_ud_flag_column" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.chunk">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">chunk</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sequence</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>T<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">chunk_size</span><span className="p">:</span> <span className="n">int</span> <span className="o">=</span> <span className="default_value">1000</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>List<span className="p">[</span>T<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.chunk" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.get_change_key">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.get_conn_str">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">get_conn_str</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.engine.postgres.engine.get_conn_str" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.hooks.mdx b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.hooks.mdx
new file mode 100644
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--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.hooks.mdx
@@ -0,0 +1,424 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.hooks package",
+  id: "splitgraph.hooks package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhooksexternal_objects-module">splitgraph.hooks.external_objects module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhookss3-module">splitgraph.hooks.s3 module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhookssplitfile_commands-module">splitgraph.hooks.splitfile_commands module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.hooks">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.hooks" title="Permalink to this headline">¶</a></h2>
+<p>Various hooks for extending Splitgraph, including:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>External object handlers (<a className="reference internal" href="#module-splitgraph.hooks.external_objects" title="splitgraph.hooks.external_objects"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects</span></code></a>) allowing to download/upload objects
+to locations other than the remote Splitgraph engine.</p></li>
+<li><p>FDW handlers (<a className="reference internal" href="#module-splitgraph.hooks.mount_handlers" title="splitgraph.hooks.mount_handlers"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.mount_handlers</span></code></a>) that allow to use the Postgres engine’s FDW interface
+to mount other external databases on the engine.</p></li>
+<li><p>Splitfile commands (<a className="reference internal" href="#module-splitgraph.hooks.splitfile_commands" title="splitgraph.hooks.splitfile_commands"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.splitfile_commands</span></code></a>) to define custom data transformation steps
+compatible with the Splitfile framework.</p></li>
+</ul>
+</div></blockquote>
+</div><div className="section" id="splitgraph-hooks-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.hooks.external_objects">
+<span id="splitgraph-hooks-external-objects-module"></span><h2 id="splitgraphhooksexternal_objects-module">splitgraph.hooks.external_objects module<a className="headerlink" href="#module-splitgraph.hooks.external_objects" title="Permalink to this headline">¶</a></h2>
+<p>Hooks for registering handlers to upload/download objects from external locations into Splitgraph’s cache.</p>
+<dl className="py class">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">ExternalObjectHandler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Framework for allowing to dump objects from the Splitgraph cache to an external location. This allows
+the objects to be stored somewhere other than the actual remote engine.</p>
+<p>External object handlers must extend this class and be registered in the Splitgraph config.</p>
+<p>For an example of how this can be used, see splitgraph.hooks.s3: it’s a handler allowing objects to be
+uploaded to S3/S3-compatible host using the Minio API. It’s registered in the config as follows:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="p">[</span><span className="n">external_handlers</span><span className="p">]</span>
+<span className="n">S3</span><span className="o">=</span><span className="n">splitgraph</span><span className="o">.</span><span className="n">hooks</span><span className="o">.</span><span className="n">s3</span><span className="o">.</span><span className="n">S3ExternalObjectHandler</span>
+</pre></div>
+</div>
+<p>The protocol and the URLs returned by this handler are stored in splitgraph_meta.external_objects
+and used to download the objects back into the Splitgraph cache when they are needed.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the external location into the Splitgraph cache.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_id, object_url)</cite> that this handler had previosly
+uploaded the objects to.</p></li>
+<li><p><strong>remote_engine</strong> – An instance of Engine class that the objects will be registered on</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of object IDs that have been successfully downloaded.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the Splitgraph cache to an external location</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – An instance of Engine class that the objects will be registered on</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of successfully uploaded object IDs and URLs they can be found at.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.external_objects.get_external_object_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">get_external_object_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler">splitgraph.hooks.external_objects.ExternalObjectHandler</a><a className="headerlink" href="#splitgraph.hooks.external_objects.get_external_object_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Load an external protocol handler by its name, initializing it with optional parameters.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.external_objects.register_upload_download_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">register_upload_download_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_class</span><span className="p">:</span> <span className="n">Callable<span className="p">[</span><span className="p">[</span><span className="p">…</span><span className="p">]</span><span className="p">, </span><a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler">splitgraph.hooks.external_objects.ExternalObjectHandler</a><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.external_objects.register_upload_download_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Register an external protocol handler. See the docstring for <cite>get_upload_download_handler</cite> for the required
+signatures of the handler functions.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.mount_handlers">
+<span id="splitgraph-hooks-mount-handlers-module"></span><h2 id="splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module<a className="headerlink" href="#module-splitgraph.hooks.mount_handlers" title="Permalink to this headline">¶</a></h2>
+<p>Hooks for additional handlers used to mount other databases via FDW. These handlers become available
+in the command line tool (via <cite>sgr mount</cite>) and in the Splitfile interpreter (via <cite>FROM MOUNT</cite>).</p>
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.get_mount_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">get_mount_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Callable<a className="headerlink" href="#splitgraph.hooks.mount_handlers.get_mount_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a mount function for a given handler.
+The mount function must have a signature <cite>(mountpoint, server, port, username, password, handler_kwargs)</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.get_mount_handlers">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">get_mount_handlers</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.mount_handlers.get_mount_handlers" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the names of all registered mount handlers.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.init_fdw">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">init_fdw</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">server_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">user_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.init_fdw" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets up a foreign data server on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – PostgresEngine</p></li>
+<li><p><strong>server_id</strong> – Name to call the foreign server, must be unique. Will be deleted if exists.</p></li>
+<li><p><strong>wrapper</strong> – Name of the foreign data wrapper (must be installed as an extension on the engine)</p></li>
+<li><p><strong>server_options</strong> – Dictionary of FDW options</p></li>
+<li><p><strong>user_options</strong> – Dictionary of user options</p></li>
+<li><p><strong>overwrite</strong> – If the server already exists, delete and recreate it.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_kwargs</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>int<span className="p">, </span>None<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mounts a foreign database via Postgres FDW (without creating new Splitgraph objects)</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Mountpoint to import the new tables into.</p></li>
+<li><p><strong>mount_handler</strong> – The type of the mounted database. Must be one of <cite>postgres_fdw</cite> or <cite>mongo_fdw</cite>.</p></li>
+<li><p><strong>handler_kwargs</strong> – Dictionary of options to pass to the mount handler.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_elasticsearch">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_elasticsearch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">int</span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_spec</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_elasticsearch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount an ElasticSearch instance.</p>
+<p>Mount a set of tables proxying to a remote ElasticSearch index.</p>
+<p>This uses a fork of postgres-elasticsearch-fdw behind the scenes. You can add a column
+<cite>query</cite> to your table and set it as <cite>query_column</cite> to pass advanced ES queries and aggregations.
+For example:</p>
+<p><a href="#id1"><span className="problematic" id="id2">``</span></a>`
+sgr mount elasticsearch -c elasticsearch:9200 -o@- &lt;&lt;EOF</p>
+<blockquote>
+<div><dl>
+<dt>&#38;lbrace;</dt><dd><dl>
+<dt>“table_spec”: &#38;lbrace;</dt><dd><dl>
+<dt>“table_1”: &#38;lbrace;</dt><dd><dl className="simple">
+<dt>“schema”: &#38;lbrace;</dt><dd><p>“id”: “text”,
+“@timestamp”: “timestamp”,
+“query”: “text”,
+“col_1”: “text”,
+“col_2”: “boolean”,</p>
+</dd>
+</dl>
+<p>&#38;rbrace;,
+“index”: “index-pattern*”,
+“rowid_column”: “id”,
+“query_column”: “query”,</p>
+</dd>
+</dl>
+<p>&#38;rbrace;</p>
+</dd>
+</dl>
+<p>&#38;rbrace;</p>
+</dd>
+</dl>
+<p>&#38;rbrace;</p>
+</div></blockquote>
+<p></p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Database port</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>table_spec</strong> – </p><p>A dictionary of form
+<a href="#id3"><span className="problematic" id="id4">`</span></a>&#38;lbrace;“table_name”:</p>
+<blockquote>
+<div><dl className="simple">
+<dt>&#38;lbrace;“schema”: &#38;lbrace;“col1”: “type1”…&#38;rbrace;,</dt><dd><p>”index”: &lt;es index>,
+“type”: &lt;es doc_type, optional in ES7 and later>,
+“query_column”: &lt;column to pass ES query in>,
+“score_column”: &lt;column to return document score>,
+“scroll_size”: &lt;fetch size, default 1000>,
+“scroll_duration”: &lt;how long to hold the scroll context open for, default 10m>&#38;rbrace;,
+…&#38;rbrace;`</p>
+</dd>
+</dl>
+</div></blockquote>
+<p></p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_mongo">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_mongo</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">int</span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">table_spec</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_mongo" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a Mongo database.</p>
+<p>Mounts one or more collections on a remote Mongo database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Port the Mongo server is running on.</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>table_spec</strong> – A dictionary of form <cite>&#38;lbrace;“table_name”: &#38;lbrace;“db”: &lt;dbname>, “coll”: &lt;collection>,
+“schema”: &#38;lbrace;“col1”: “type1”…&#38;rbrace;&#38;rbrace;&#38;rbrace;</cite>.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_mysql">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_mysql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">int</span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">remote_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_mysql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a MySQL database.</p>
+<p>Mounts a schema on a remote MySQL database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Database port</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>remote_schema</strong> – Remote schema name.</p></li>
+<li><p><strong>tables</strong> – Tables to mount (default all). If a list, then will use IMPORT FOREIGN SCHEMA.</p></li>
+</ul>
+</dd>
+</dl>
+<p>If a dictionary, must have the format <cite>&#38;lbrace;“table_name”: &#38;lbrace;“col_1”: “type_1”, …&#38;rbrace;&#38;rbrace;</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_postgres">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_postgres</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>int<span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">dbname</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">remote_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">extra_server_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_postgres" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a Postgres database.</p>
+<p>Mounts a schema on a remote Postgres database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Port the Postgres server is running on.</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>dbname</strong> – Remote database name.</p></li>
+<li><p><strong>remote_schema</strong> – Remote schema name.</p></li>
+<li><p><strong>extra_server_args</strong> – Dictionary of extra arguments to pass to the foreign server</p></li>
+<li><p><strong>tables</strong> – Tables to mount (default all). If a list, then will use IMPORT FOREIGN SCHEMA.</p></li>
+</ul>
+</dd>
+</dl>
+<p>If a dictionary, must have the format &#38;lbrace;“table_name”: &#38;lbrace;“col_1”: “type_1”, …&#38;rbrace;&#38;rbrace;.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.register_mount_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">register_mount_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_function</span><span className="p">:</span> <span className="n">Callable</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.register_mount_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a mount function under a given name. See <cite>get_mount_handler</cite> for the mount handler spec.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.s3">
+<span id="splitgraph-hooks-s3-module"></span><h2 id="splitgraphhookss3-module">splitgraph.hooks.s3 module<a className="headerlink" href="#module-splitgraph.hooks.s3" title="Permalink to this headline">¶</a></h2>
+<p>Plugin for uploading Splitgraph objects from the cache to an external S3-like object store</p>
+<dl className="py class">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">S3ExternalObjectHandler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects.ExternalObjectHandler</span></code></a></p>
+<p>Uploads/downloads the objects to/from S3/S3-compatible host using the Minio client.</p>
+<p>The handler is “attached” to a given registry which manages issuing pre-signed
+GET/PUT URLs.</p>
+<p>The handler supports a parameter <cite>threads</cite> specifying the number of threads
+used to upload the objects.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from Minio.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>objects</strong> – List of (object ID, object URL (object ID it’s stored under))</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects to Minio</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_engine</strong> – Remote Engine class</p></li>
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of tuples with successfully uploaded objects and their URLs.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.s3.get_object_download_urls">
+<code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">get_object_download_urls</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_engine</span></em>, <em className="sig-param"><span className="n">remote_object_ids</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.get_object_download_urls" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.s3.get_object_upload_urls">
+<code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">get_object_upload_urls</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_engine</span></em>, <em className="sig-param"><span className="n">objects</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.get_object_upload_urls" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.splitfile_commands">
+<span id="splitgraph-hooks-splitfile-commands-module"></span><h2 id="splitgraphhookssplitfile_commands-module">splitgraph.hooks.splitfile_commands module<a className="headerlink" href="#module-splitgraph.hooks.splitfile_commands" title="Permalink to this headline">¶</a></h2>
+<p>A framework for custom Splitfile commands. The execution flow is as follows:</p>
+<blockquote>
+<div><ul>
+<li><p>When the Splitfile executor finds an unknown command, it looks for an entry in the config file:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="p">[</span><span className="n">commands</span><span className="p">]</span>
+<span className="n">RUN</span><span className="o">=</span><span className="n">splitgraph</span><span className="o">.</span><span className="n">plugins</span><span className="o">.</span><span className="n">Run</span>
+</pre></div>
+</div>
+</li>
+<li><p>The command class must extend this class, initialized at every invocation time.</p></li>
+<li><p>The command’s <cite>calc_hash()</cite> method is run. The resultant command context hash is combined with the current
+image hash to produce the new image hash: if it already exists, then the image is simply checked out.</p></li>
+<li><p>Otherwise (or if calc_hash is undefined or returns None), <cite>execute()</cite>, where the actual command should be
+implemented, is run. If it returns a hash, this hash is used for the new image. If this hash already exists,
+the existing image is checked out instead. If the command returns None, a random hash is generated for the
+new image.</p></li>
+</ul>
+</div></blockquote>
+<dl className="py class">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.splitfile_commands.</code><code className="sig-name descname">PluginCommand</code><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Base class for custom Splitfile commands.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand.calc_hash">
+<code className="sig-name descname">calc_hash</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span></em>, <em className="sig-param"><span className="n">args</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand.calc_hash" title="Permalink to this definition">¶</a></dt>
+<dd><p>Calculates the command context hash for this custom command. If either the command context hash or the
+previous image hash has changed, then the image hash produced by this command will change.
+Consequently, two commands with the same command context hashes are assumed to have the same effect
+on any Splitgraph images.</p>
+<p>This is supposed to be a lightweight method intended for pre-flight image hash calculations
+(without performing the actual transformation). If it returns None, the actual transformation is run anyway.</p>
+<p>For example, for a command that imports some data from an external URL, this could be the hash of the last
+modified timestamp provided by the external data vendor. If the timestamp is unchanged, the data is unchanged
+and so actual command won’t be re-executed.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>repository</strong> – SG Repository object pointed to a schema with the checked out image
+the command is being run against.</p></li>
+<li><p><strong>args</strong> – Positional arguments to the command</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Command context hash (a string of 64 hexadecimal digits)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand.execute">
+<code className="sig-name descname">execute</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span></em>, <em className="sig-param"><span className="n">args</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand.execute" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute the custom command against the target schema, optionally returning the new image hash. The contract
+for the command is as follows (though it is not currently enforced by the runtime):</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>Has to use get_engine().run_sql (or run_sql_batch) to interact with the engine.</p></li>
+<li><p>Can only write to the schema with the checked-out repository (run_sql runs non-schema-qualified
+statements against the correct schema).</p></li>
+<li><p>Can inspect splitgraph_meta (e.g. to find the current HEAD) for the repository.</p></li>
+<li><p>Can’t alter the versioning of the repository.</p></li>
+</ul>
+</div></blockquote>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>repository</strong> – SG Repository object pointed to a schema with the checked out image
+the command is being run against.</p></li>
+<li><p><strong>args</strong> – Positional arguments to the command</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Command context hash (a string of 64 hexadecimal digits). If calc_hash() had previously returned
+a hash, this hash is ignored. If both this command and calc_hash() return None, the hash is randomly
+generated.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.mdx b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.mdx
new file mode 100644
index 00000000..01159f97
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.mdx
@@ -0,0 +1,254 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph package",
+  id: "splitgraph package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#subpackages">Subpackages</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphexceptions-module">splitgraph.exceptions module</a></li><li className="toc-item toc-item-h1"><a className="toc-link toc-link-h1" href="#indices-and-tables">Indices and tables</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph" title="Permalink to this headline">¶</a></h2>
+</div><div className="section" id="splitgraph-package">
+
+<div className="section" id="subpackages">
+<h2 id="subpackages">Subpackages<a className="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
+<div className="toctree-wrapper compound">
+<ul>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.config/">splitgraph.config package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.argument_config">splitgraph.config.argument_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.config">splitgraph.config.config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.config_file_config">splitgraph.config.config_file_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.default_config">splitgraph.config.default_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.environment_config">splitgraph.config.environment_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.keys">splitgraph.config.keys module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.system_config">splitgraph.config.system_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.core/">splitgraph.core package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.engine">splitgraph.core.engine module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.image">splitgraph.core.image module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.object_manager">splitgraph.core.object_manager module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.registry">splitgraph.core.registry module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.repository">splitgraph.core.repository module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.table">splitgraph.core.table module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.engine/">splitgraph.engine package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine/#subpackages">Subpackages</a><ul>
+<li className="toctree-l3"><a className="reference internal" href="splitgraph.engine.postgres/">splitgraph.engine.postgres package</a><ul>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#submodules">Submodules</a></li>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres.engine">splitgraph.engine.postgres.engine module</a></li>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine/#module-splitgraph.engine">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.hooks/">splitgraph.hooks package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.external_objects">splitgraph.hooks.external_objects module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.mount_handlers">splitgraph.hooks.mount_handlers module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.s3">splitgraph.hooks.s3 module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.splitfile_commands">splitgraph.hooks.splitfile_commands module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.splitfile/">splitgraph.splitfile package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#module-splitgraph.splitfile.execution">splitgraph.splitfile.execution module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#module-splitgraph.splitfile">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.exceptions">
+<span id="splitgraph-exceptions-module"></span><h2 id="splitgraphexceptions-module">splitgraph.exceptions module<a className="headerlink" href="#module-splitgraph.exceptions" title="Permalink to this headline">¶</a></h2>
+<p>Exceptions that can be raised by the Splitgraph library.</p>
+<dl className="py exception">
+<dt id="splitgraph.exceptions.APICompatibilityError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">APICompatibilityError</code><a className="headerlink" href="#splitgraph.exceptions.APICompatibilityError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions related to API incompatibilities</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.AuthAPIError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">AuthAPIError</code><a className="headerlink" href="#splitgraph.exceptions.AuthAPIError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by the Auth API</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.CheckoutError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">CheckoutError</code><a className="headerlink" href="#splitgraph.exceptions.CheckoutError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to checking out/committing repositories</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.DockerUnavailableError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">DockerUnavailableError</code><a className="headerlink" href="#splitgraph.exceptions.DockerUnavailableError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Could not connect to the Docker daemon.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.EngineInitializationError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">EngineInitializationError</code><a className="headerlink" href="#splitgraph.exceptions.EngineInitializationError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when the engine isn’t initialized (no splitgraph_meta schema or audit triggers)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ExternalHandlerError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ExternalHandlerError</code><a className="headerlink" href="#splitgraph.exceptions.ExternalHandlerError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by external object handlers.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLAPIError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLAPIError</code><a className="headerlink" href="#splitgraph.exceptions.GQLAPIError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>GQL API errors</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLRepoDoesntExistError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLRepoDoesntExistError</code><a className="headerlink" href="#splitgraph.exceptions.GQLRepoDoesntExistError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Repository doesn’t exist</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLUnauthenticatedError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLUnauthenticatedError</code><a className="headerlink" href="#splitgraph.exceptions.GQLUnauthenticatedError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Unauthenticated (user not logged in)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLUnauthorizedError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLUnauthorizedError</code><a className="headerlink" href="#splitgraph.exceptions.GQLUnauthorizedError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Unauthorized (e.g. repository isn’t writeable by the user)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ImageNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ImageNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.ImageNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A Splitgraph image doesn’t exist.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.IncompleteObjectDownloadError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">IncompleteObjectDownloadError</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reason</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>BaseException<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.exceptions.IncompleteObjectDownloadError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when an error is encountered during download of multiple objects.
+The handler is supposed to perform any necessary
+cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.IncompleteObjectUploadError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">IncompleteObjectUploadError</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reason</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>BaseException<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_object_urls</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.exceptions.IncompleteObjectUploadError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when an error is encountered during upload of multiple objects.
+The handler is supposed to perform any necessary
+cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.MountHandlerError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">MountHandlerError</code><a className="headerlink" href="#splitgraph.exceptions.MountHandlerError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by mount handlers.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectCacheError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectCacheError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectCacheError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Issues with the object cache (not enough space)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectIndexingError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectIndexingError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectIndexingError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to indexing objects</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectMountingError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectMountingError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectMountingError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to incompatible objects.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when a physical object doesn’t exist in the cache.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.RepositoryNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">RepositoryNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.RepositoryNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A Splitgraph repository doesn’t exist.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.SplitGraphError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">SplitGraphError</code><a className="headerlink" href="#splitgraph.exceptions.SplitGraphError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">Exception</span></code></p>
+<p>A generic Splitgraph exception.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.SplitfileError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">SplitfileError</code><a className="headerlink" href="#splitgraph.exceptions.SplitfileError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Generic error class for Splitfile interpretation/execution errors.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.TableNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">TableNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.TableNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A table doesn’t exist in an image</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.UnsupportedSQLError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">UnsupportedSQLError</code><a className="headerlink" href="#splitgraph.exceptions.UnsupportedSQLError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised for unsupported SQL statements, for example, containing schema-qualified tables when the statement
+is supposed to be used in an SQL/IMPORT Splitfile command.</p>
+</dd></dl>
+
+</div>
+
+</div>
+<div className="section" id="indices-and-tables">
+<h1 id="indices-and-tables">Indices and tables<a className="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h1>
+<ul className="simple">
+<li><p><a className="reference internal" href="../genindex/"><span className="std std-ref">Index</span></a></p></li>
+<li><p><a className="reference internal" href="../py-modindex/"><span className="std std-ref">Module Index</span></a></p></li>
+<li><p><a className="reference internal" href="../search/"><span className="std std-ref">Search Page</span></a></p></li>
+</ul>
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.splitfile.mdx b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.splitfile.mdx
new file mode 100644
index 00000000..b0460786
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.3/splitgraph.splitfile.mdx
@@ -0,0 +1,89 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.splitfile package",
+  id: "splitgraph.splitfile package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphsplitfileexecution-module">splitgraph.splitfile.execution module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.splitfile">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.splitfile" title="Permalink to this headline">¶</a></h2>
+<p>Splitfile interpreter: a set of tools on top of the core Splitgraph versioning and image management to give
+the user a Dockerfile-like experience for building Splitgraph images (caching, consistent hashing, a declarative
+language).</p>
+</div><div className="section" id="splitgraph-splitfile-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.splitfile.execution">
+<span id="splitgraph-splitfile-execution-module"></span><h2 id="splitgraphsplitfileexecution-module">splitgraph.splitfile.execution module<a className="headerlink" href="#module-splitgraph.splitfile.execution" title="Permalink to this headline">¶</a></h2>
+<p>Functions for executing Splitfiles.</p>
+<dl className="py class">
+<dt id="splitgraph.splitfile.execution.ImageMapper">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">ImageMapper</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.get_provenance_data">
+<code className="sig-name descname">get_provenance_data</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.get_provenance_data" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.setup_lq_mounts">
+<code className="sig-name descname">setup_lq_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.setup_lq_mounts" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.teardown_lq_mounts">
+<code className="sig-name descname">teardown_lq_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.teardown_lq_mounts" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.execute_commands">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">execute_commands</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">commands</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">output</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.core/#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">output_base</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'00000000000000000000000000000000'</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.execute_commands" title="Permalink to this definition">¶</a></dt>
+<dd><p>Executes a series of Splitfile commands.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>commands</strong> – A string with the raw Splitfile.</p></li>
+<li><p><strong>params</strong> – A dictionary of parameters to be applied to the Splitfile (<cite>$&#38;lbrace;PARAM&#38;rbrace;</cite> is replaced with the specified
+parameter value).</p></li>
+<li><p><strong>output</strong> – Output repository to execute the Splitfile against.</p></li>
+<li><p><strong>output_base</strong> – If not None, a revision that gets checked out for all Splitfile actions to be committed
+on top of it.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.getrandbits">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.splitfile.execution.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.prevalidate_imports">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">prevalidate_imports</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_names</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table_queries</span><span className="p">:</span> <span className="n">List<span className="p">[</span>bool<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.splitfile.execution.prevalidate_imports" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.rebuild_image">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">rebuild_image</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n"><a className="reference internal" href="splitgraph.core/#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a></span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span><a className="reference internal" href="splitgraph.core/#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.rebuild_image" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreates the Splitfile used to create a given image and reruns it, replacing its dependencies with a different
+set of versions.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>image</strong> – Image object</p></li>
+<li><p><strong>source_replacement</strong> – A map that specifies replacement images/tags for repositories that the image depends on</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.4/metadata.json b/content/docs/9500_python-api/9000_versions/v0.2.4/metadata.json
new file mode 100644
index 00000000..d8d0f220
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.4/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.4",
+  "updated_at": "2021-01-26T14:47:52.488Z",
+  "release": {
+    "id": 34976262,
+    "tag_name": "v0.2.4",
+    "target_commitish": "87608746ae196f598a0601f838be338175041027",
+    "created_at": "2020-12-08T10:18:35Z",
+    "published_at": "2020-12-08T10:49:18Z",
+    "assets": [
+      {
+        "id": 29291204,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/29291204",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2020-12-08T10:46:03Z",
+        "updated_at": "2020-12-08T10:46:05Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.4/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.config.mdx b/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.config.mdx
new file mode 100644
index 00000000..3201eefe
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.config.mdx
@@ -0,0 +1,337 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.config package",
+  id: "splitgraph.config package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigargument_config-module">splitgraph.config.argument_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigconfig-module">splitgraph.config.config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigconfig_file_config-module">splitgraph.config.config_file_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigdefault_config-module">splitgraph.config.default_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigenvironment_config-module">splitgraph.config.environment_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigkeys-module">splitgraph.config.keys module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigsystem_config-module">splitgraph.config.system_config module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.config">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.config" title="Permalink to this headline">¶</a></h2>
+<p>The CONFIG object is created and exported once __at import <a href="#id1"><span className="problematic" id="id2">time__</span></a>
+Calling CONFIG[“KEY”] directly should be sufficient in most cases,
+except when a config value has changed since importing CONFIG.
+In that case, create_config_dict() can provide an updated config dict</p>
+<p>Priority (highest to lowest):</p>
+<blockquote>
+<div><ol className="arabic simple">
+<li><p>Command line argument values</p></li>
+<li><p>Environment variable values</p></li>
+<li><p>Config file values in [defaults] section</p></li>
+<li><p>DEFAULTS (see keys.py)</p></li>
+</ol>
+</div></blockquote>
+</div><div className="section" id="splitgraph-config-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.config.argument_config">
+<span id="splitgraph-config-argument-config-module"></span><h2 id="splitgraphconfigargument_config-module">splitgraph.config.argument_config module<a className="headerlink" href="#module-splitgraph.config.argument_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.argument_config.get_arg_tuples">
+<code className="sig-prename descclassname">splitgraph.config.argument_config.</code><code className="sig-name descname">get_arg_tuples</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.argument_config.get_arg_tuples" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the raw (argN, argN+1) tuples from sys.argv</p>
+<p>We could also use click to parse the flags ahead of time, and then pass
+the parsed flag object into SystemConfigGetters. But this way, we avoid
+having to pass down variables from click just to get config values.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.argument_config.get_argument_config_value">
+<code className="sig-prename descclassname">splitgraph.config.argument_config.</code><code className="sig-name descname">get_argument_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.argument_config.get_argument_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get get the value of an argument, where value is the argument
+immediately following the argument matching a key in ARG_KEYS, e.g.:</p>
+<blockquote>
+<div><p>SYS_ARGS = [“–namespace”, “foo”]
+–> return “foo”</p>
+</div></blockquote>
+<p>Otherwise, return default_return</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.config">
+<span id="splitgraph-config-config-module"></span><h2 id="splitgraphconfigconfig-module">splitgraph.config.config module<a className="headerlink" href="#module-splitgraph.config.config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.config.chain_getters">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">chain_getters</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">getters</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Callable<span className="p">[</span><span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.chain_getters" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.create_config_dict">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">create_config_dict</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.create_config_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create and return a dict of all known config values</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_all_in_section">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_section" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get all subsections from a config (e.g. config[“data_sources”])</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_all_in_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_subsection" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_from_section">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_from_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_from_section" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_from_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_from_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_from_subsection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a singleton variable from a subsection of the config,
+e.g. config[“remotes”][“data.splitgraph.com”][“SG_ENGINE_HOST”]</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_singleton">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_singleton</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_singleton" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a singleton (not a section) variable from the config.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.lazy_get_config_value">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">lazy_get_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.lazy_get_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the config value for a key in the following precedence
+Otherwise return default_return</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.patch_config">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">patch_config</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">patch</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.patch_config" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recursively updates a nested configuration dictionary:</p>
+<dl className="simple">
+<dt>patch_config(</dt><dd><dl className="simple">
+<dt>&#38;lbrace;“key_1”: “value_1”,</dt><dd><p>“dict_1”: &#38;lbrace;“key_1”: “value_1”&#38;rbrace;&#38;rbrace;,</p>
+</dd>
+<dt>&#38;lbrace;“key_1”: “value_2”,</dt><dd><p>“dict_1”: &#38;lbrace;“key_2”: “value_2”&#38;rbrace;&#38;rbrace;) ==         &#38;lbrace;“key_1”: “value_2”,
+“dict_1”: &#38;lbrace;“key_1”: “value_1”, “key_2”: “value_2”&#38;rbrace;&#38;rbrace;</p>
+</dd>
+</dl>
+</dd>
+</dl>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>config</strong> – Config dictionary</p></li>
+<li><p><strong>patch</strong> – Dictionary with the path</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>New patched dictionary</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.set_in_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">set_in_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">value</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.config.config.set_in_subsection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set a singleton variable in a subsection of the config,
+e.g. config[“remotes”][“data.splitgraph.com”][“SG_ENGINE_HOST”]</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_arguments">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_arguments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_arguments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading sys.argv
+and overwriting any keys.</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_env_vars">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_env_vars</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_env_vars" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading os.environ
+and overwriting any keys.</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_file">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">sg_config_file</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading sg_config_file
+and overwriting any keys according to the rules in config_file_config</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.config_file_config">
+<span id="splitgraph-config-config-file-config-module"></span><h2 id="splitgraphconfigconfig_file_config-module">splitgraph.config.config_file_config module<a className="headerlink" href="#module-splitgraph.config.config_file_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.accumulate_lists">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">accumulate_lists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.accumulate_lists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Transform a <cite>config_dict</cite> to “accumulate” objects “nested” via key name</p>
+<p>Because  ConfigParser does not support nesting, we implement our own
+syntax via the key names of sections. The ‘:’ character can be used in
+section names to specify the left and right key. Example:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="o">.</span><span className="n">ini</span> <span className="n">config</span>             <span className="n">new</span> <span className="n">config_dict</span>
+
+                  <span className="o">-----></span>
+                    <span className="o">|</span>
+<span className="p">[</span><span className="n">remote</span><span className="p">:</span> <span className="n">remote1</span><span className="p">]</span>   <span className="o">|</span>   <span className="p">&#38;lbrace;</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">foo</span>      <span className="o">|</span>       <span className="o">**</span><span className="n">rest_of_config_dict</span><span className="p">,</span>
+                    <span className="o">|</span>       <span className="s2">"remotes"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+<span className="p">[</span><span className="n">origin</span><span className="p">:</span> <span className="n">origin1</span><span className="p">]</span>   <span className="o">|</span>           <span className="s2">"remote1"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">bar</span>      <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"foo"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;</span>
+<span className="p">[</span><span className="n">origin</span><span className="p">:</span> <span className="n">origin2</span><span className="p">]</span>   <span className="o">|</span>       <span className="p">&#38;rbrace;,</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">bax</span>      <span className="o">|</span>       <span className="s2">"origins"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>           <span className="s2">"origin1"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"bar"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;,</span>
+                    <span className="o">|</span>           <span className="s2">"origin2"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"bax"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>       <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>   <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>
+                  <span className="o">-----></span>
+</pre></div>
+</div>
+<p>:return a new, updated copy of <cite>config_dict</cite></p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.get_config_dict_from_config_file">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">get_config_dict_from_config_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sg_file</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.get_config_dict_from_config_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a dict from ConfigParser, apply transformations to it.</p>
+<p>Return parsed and transformed <cite>config_dict</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.get_config_dict_from_file">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">get_config_dict_from_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sg_file</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.get_config_dict_from_file" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.hoist_section">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">hoist_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'defaults'</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.hoist_section" title="Permalink to this definition">¶</a></dt>
+<dd><p>If a section exists called &lt;hoist_section>, hoist it to the top level
+This is useful for overriding default configs from within a config file</p>
+<p>Transform <cite>config_dict</cite> to “hoist” any config values from a section
+into the top level (thus, overriding environment variables),
+when the name of the section matches <cite>hoist_section</cite>.</p>
+<p>Return a new, updated copy of <cite>config_dict</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.transform_config_dict">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">transform_config_dict</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.transform_config_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply transformations to the raw ConfigParser.config object</p>
+<blockquote>
+<div><ol className="arabic simple">
+<li><p>hoist_section</p></li>
+<li><p>accumulate_lists</p></li>
+</ol>
+</div></blockquote>
+<p>Return the a new, updated copy of <cite>config_dict</cite>.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.default_config">
+<span id="splitgraph-config-default-config-module"></span><h2 id="splitgraphconfigdefault_config-module">splitgraph.config.default_config module<a className="headerlink" href="#module-splitgraph.config.default_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.default_config.get_default_config_value">
+<code className="sig-prename descclassname">splitgraph.config.default_config.</code><code className="sig-name descname">get_default_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.config.default_config.get_default_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the hard-coded default value of a config key.
+Otherwise return default_return.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.environment_config">
+<span id="splitgraph-config-environment-config-module"></span><h2 id="splitgraphconfigenvironment_config-module">splitgraph.config.environment_config module<a className="headerlink" href="#module-splitgraph.config.environment_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.environment_config.get_environment_config_value">
+<code className="sig-prename descclassname">splitgraph.config.environment_config.</code><code className="sig-name descname">get_environment_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.environment_config.get_environment_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the environment variable value of the environment variable matching key.
+Otherwise return default_return.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.keys">
+<span id="splitgraph-config-keys-module"></span><h2 id="splitgraphconfigkeys-module">splitgraph.config.keys module<a className="headerlink" href="#module-splitgraph.config.keys" title="Permalink to this headline">¶</a></h2>
+<dl className="py data">
+<dt id="splitgraph.config.keys.SENSITIVE_KEY_SUFFIXES">
+<code className="sig-prename descclassname">splitgraph.config.keys.</code><code className="sig-name descname">SENSITIVE_KEY_SUFFIXES</code><em className="property"> = ['_PWD', '_TOKEN']</em><a className="headerlink" href="#splitgraph.config.keys.SENSITIVE_KEY_SUFFIXES" title="Permalink to this definition">¶</a></dt>
+<dd><p>Warning: Every key in DEFAULTS must have a key in ARGUMENT_KEY_MAP
+If you add/remove keys from DEFAULTS, make sure to do so here too.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.system_config">
+<span id="splitgraph-config-system-config-module"></span><h2 id="splitgraphconfigsystem_config-module">splitgraph.config.system_config module<a className="headerlink" href="#module-splitgraph.config.system_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.system_config.file_exists">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">file_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">_dir</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">filename</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.config.system_config.file_exists" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_config_file">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_config_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_config_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the location of an existing SG_CONFIG_FILE on the system with
+a valid name. Do not attempt to parse the config file, just return
+its location.</p>
+<p>Otherwise, return default_return</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_explicit_config_file_dirs">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_explicit_config_file_dirs</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_explicit_config_file_dirs" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get any explicitly defined config file directories,
+which are directories where we should search for files from
+VALID_CONFIG_FILE_NAMES.</p>
+<p>This list is defined similar to $PATH, as a colon (:) delimited
+string, either in:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-dirs</p></li>
+<li><p>or environment key SG_CONFIG_DIRS</p></li>
+</ul>
+</div></blockquote>
+<p>Or a single directory defined in either</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-dir</p></li>
+<li><p>environment key SG_CONFIG_DIR</p></li>
+</ul>
+</div></blockquote>
+<p>If both plural and single are defined, join them together.</p>
+<p>Return a list of valid paths that are set, or an empty list.</p>
+<p>Print a warning if any paths to not exist.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_explicit_config_file_location">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_explicit_config_file_location</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_explicit_config_file_location" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the explicitly defined location of config file, if defined.</p>
+<p>The location will either be defined in:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-file</p></li>
+<li><p>or environment key SG_CONFIG_FILE</p></li>
+</ul>
+</div></blockquote>
+<p>In keeping with assumptions about priority, argument flag has
+higher priority than environment value.</p>
+<p>If the location is set, and points to an existing file, return location.</p>
+<p>Otherwise return None</p>
+<p>Print a warning if location is set but points to non-existing file.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_system_config_value">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_system_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_system_config_value" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.is_file">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">is_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">filename</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.config.system_config.is_file" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.core.mdx b/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.core.mdx
new file mode 100644
index 00000000..b329b909
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.core.mdx
@@ -0,0 +1,1061 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.core package",
+  id: "splitgraph.core package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreengine-module">splitgraph.core.engine module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreimage-module">splitgraph.core.image module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreobject_manager-module">splitgraph.core.object_manager module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreregistry-module">splitgraph.core.registry module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcorerepository-module">splitgraph.core.repository module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoretable-module">splitgraph.core.table module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.core">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.core" title="Permalink to this headline">¶</a></h2>
+<p>Core Splitgraph functionality: versioning and sharing tables.</p>
+<p>The main point of interaction with the Splitgraph API is a <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.repository.Repository</span></code></a> object
+representing a local or a remote Splitgraph repository. Repositories can be created using one of the
+following methods:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>Directly by invoking <cite>Repository(namespace, name, engine)</cite> where <cite>engine</cite> is the engine that the repository
+belongs to (that can be gotten with <cite>get_engine(engine_name)</cite>. If the created repository doesn’t actually exist
+on the engine, it must first be initialized with <cite>repository.init()</cite>.</p></li>
+<li><p>By using <a className="reference internal" href="#splitgraph.core.engine.lookup_repository" title="splitgraph.core.engine.lookup_repository"><code className="xref py py-func docutils literal notranslate"><span className="pre">splitgraph.core.engine.lookup_repository()</span></code></a> which will search for the repository on the current
+lookup path.</p></li>
+</ul>
+</div></blockquote>
+</div><div className="section" id="splitgraph-core-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.core.engine">
+<span id="splitgraph-core-engine-module"></span><h2 id="splitgraphcoreengine-module">splitgraph.core.engine module<a className="headerlink" href="#module-splitgraph.core.engine" title="Permalink to this headline">¶</a></h2>
+<p>Routines for managing Splitgraph engines, including looking up repositories and managing objects.</p>
+<dl className="py function">
+<dt id="splitgraph.core.engine.get_current_repositories">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">get_current_repositories</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Repository<span className="p">, </span>Optional<span className="p">[</span>Image<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.engine.get_current_repositories" title="Permalink to this definition">¶</a></dt>
+<dd><p>Lists all repositories currently in the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of (Repository object, current HEAD image)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.init_engine">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">init_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">skip_object_handling</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.engine.init_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes the engine by:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>performing any required engine-custom initialization</p></li>
+<li><p>creating the metadata tables</p></li>
+</ul>
+</div></blockquote>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>skip_object_handling</strong> – If True, skips installing routines related to
+object handling and checkouts (like audit triggers and CStore management).</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.lookup_repository">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">lookup_repository</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">include_local</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Repository<a className="headerlink" href="#splitgraph.core.engine.lookup_repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Queries the SG engines on the lookup path to locate one hosting the given repository.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>name</strong> – Repository name</p></li>
+<li><p><strong>include_local</strong> – If True, also queries the local engine</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Local or remote Repository object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.repository_exists">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">repository_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.engine.repository_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks if a repository exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>repository</strong> – Repository object</p>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.image">
+<span id="splitgraph-core-image-module"></span><h2 id="splitgraphcoreimage-module">splitgraph.core.image module<a className="headerlink" href="#module-splitgraph.core.image" title="Permalink to this headline">¶</a></h2>
+<p>Image representation and provenance</p>
+<dl className="py class">
+<dt id="splitgraph.core.image.Image">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">Image</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">parent_id</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">created</span><span className="p">:</span> <span className="n">datetime.datetime</span></em>, <em className="sig-param"><span className="n">comment</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.image.Image" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">tuple</span></code></p>
+<p>Represents a Splitgraph image. Should’t be created directly, use Image-loading methods in the
+<a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.repository.Repository</span></code></a> class instead.</p>
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.checkout">
+<code className="sig-name descname">checkout</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">force</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">layered</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.checkout" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks the image out, changing the current HEAD pointer. Raises an error
+if there are pending changes to its checkout.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>force</strong> – Discards all pending changes to the schema.</p></li>
+<li><p><strong>layered</strong> – If True, uses layered querying to check out the image (doesn’t materialize tables
+inside of it).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.comment">
+<em className="property">property </em><code className="sig-name descname">comment</code><a className="headerlink" href="#splitgraph.core.image.Image.comment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 3</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.created">
+<em className="property">property </em><code className="sig-name descname">created</code><a className="headerlink" href="#splitgraph.core.image.Image.created" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 2</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.delete_tag">
+<code className="sig-name descname">delete_tag</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tag</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.delete_tag" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes a tag from an image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tag</strong> – Tag to delete.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.engine">
+<em className="property">property </em><code className="sig-name descname">engine</code><a className="headerlink" href="#splitgraph.core.image.Image.engine" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_log">
+<code className="sig-name descname">get_log</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_log" title="Permalink to this definition">¶</a></dt>
+<dd><p>Repeatedly gets the parent of a given image until it reaches the bottom.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_parent_children">
+<code className="sig-name descname">get_parent_children</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Tuple<span className="p">[</span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_parent_children" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets the parent and a list of children of a given image.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.image.Image.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the image’s objects (including those that might be
+shared with other images).</p>
+<p>This is calculated from the metadata, the on-disk footprint might be smaller if not all of image’s
+objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the image in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_table">
+<code className="sig-name descname">get_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.table.Table" title="splitgraph.core.table.Table">splitgraph.core.table.Table</a><a className="headerlink" href="#splitgraph.core.image.Image.get_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a Table object representing a version of a given table.
+Contains a list of objects that the table is linked to and the table’s schema.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>table_name</strong> – Name of the table</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Table object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_tables">
+<code className="sig-name descname">get_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets the names of all tables inside of an image.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_tags">
+<code className="sig-name descname">get_tags</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.image.Image.get_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Lists all tags that this image has.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.image_hash">
+<em className="property">property </em><code className="sig-name descname">image_hash</code><a className="headerlink" href="#splitgraph.core.image.Image.image_hash" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 0</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.object_engine">
+<em className="property">property </em><code className="sig-name descname">object_engine</code><a className="headerlink" href="#splitgraph.core.image.Image.object_engine" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.parent_id">
+<em className="property">property </em><code className="sig-name descname">parent_id</code><a className="headerlink" href="#splitgraph.core.image.Image.parent_id" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 1</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.provenance">
+<code className="sig-name descname">provenance</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reverse</span><span className="o">=</span><span className="default_value">False</span></em>, <em className="sig-param"><span className="n">engine</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.provenance" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inspects the image’s parent chain to come up with a set of repositories and their hashes
+that it was created from.</p>
+<p>If <cite>reverse</cite> is True, returns a list of images that were created _from_ this image. If
+this image is on a remote repository, <cite>engine</cite> can be passed in to override the engine
+used for the lookup of dependents.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>List of (repository, image_hash)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.provenance_data">
+<em className="property">property </em><code className="sig-name descname">provenance_data</code><a className="headerlink" href="#splitgraph.core.image.Image.provenance_data" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 4</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.query_schema">
+<code className="sig-name descname">query_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em>, <em className="sig-param"><span className="n">commit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.query_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a temporary schema with tables in this image mounted as foreign tables that can be accessed via
+read-only layered querying. On exit from the context manager, the schema is discarded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>The name of the schema the image is located in.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.repository">
+<em className="property">property </em><code className="sig-name descname">repository</code><a className="headerlink" href="#splitgraph.core.image.Image.repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 5</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.set_provenance">
+<code className="sig-name descname">set_provenance</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.set_provenance" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets the image’s provenance. Internal function called by the Splitfile interpreter, shouldn’t
+be called directly as it changes the image after it’s been created.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>provenance_data</strong> – List of parsed Splitfile commands and their data.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.tag">
+<code className="sig-name descname">tag</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tag</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.tag" title="Permalink to this definition">¶</a></dt>
+<dd><p>Tags a given image. All tags are unique inside of a repository. If a tag already exists, it’s removed
+from the previous image and given to the new image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tag</strong> – Tag to set. ‘latest’ and ‘HEAD’ are reserved tags.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.to_splitfile">
+<code className="sig-name descname">to_splitfile</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">ignore_irreproducible</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.to_splitfile" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreate the Splitfile that can be used to reconstruct this image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>ignore_irreproducible</strong> – If True, ignore commands from irreproducible Splitfile lines
+(like MOUNT or custom commands) and instead emit a comment (this results in an invalid Splitfile).</p></li>
+<li><p><strong>source_replacement</strong> – A dictionary of repositories and image hashes/tags specifying how to replace the
+dependencies of this Splitfile (table imports and FROM commands).</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of Splitfile commands that can be fed back into the executor.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.image.getrandbits">
+<code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.core.image.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.image.reconstruct_splitfile">
+<code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">reconstruct_splitfile</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">ignore_irreproducible</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.reconstruct_splitfile" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreate the Splitfile that can be used to reconstruct an image.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.object_manager">
+<span id="splitgraph-core-object-manager-module"></span><h2 id="splitgraphcoreobject_manager-module">splitgraph.core.object_manager module<a className="headerlink" href="#module-splitgraph.core.object_manager" title="Permalink to this headline">¶</a></h2>
+<p>Functions related to creating, deleting and keeping track of physical Splitgraph objects.</p>
+<dl className="py class">
+<dt id="splitgraph.core.object_manager.ObjectManager">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.object_manager.</code><code className="sig-name descname">ObjectManager</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">metadata_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>PostgresEngine<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.fragment_manager.FragmentManager</span></code></p>
+<p>Brings the multiple manager classes together and manages the object cache (downloading and uploading
+objects as required in order to fulfill certain queries)</p>
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.cleanup">
+<code className="sig-name descname">cleanup</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.cleanup" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes all objects in the object_tree not required by any current repository, including their dependencies and
+their remote locations. Also deletes all objects not registered in the object_tree.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">ObjectManager</a><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects_to_fetch</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">object_locations</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Fetches the required objects from the remote and stores them locally.
+Does nothing for objects that already exist.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>source</strong> – Remote ObjectManager. If None, will only try to download objects from the external location.</p></li>
+<li><p><strong>objects_to_fetch</strong> – List of object IDs to download.</p></li>
+<li><p><strong>object_locations</strong> – List of custom object locations, encoded as tuples (object_id, object_url, protocol).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.ensure_objects">
+<code className="sig-name descname">ensure_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Table<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">defer_release</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">tracer</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>splitgraph.core.common.Tracer<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">upstream_manager</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">ObjectManager</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Tuple<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>splitgraph.core.common.CallbackList<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.ensure_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Resolves the objects needed to materialize a given table and makes sure they are in the local
+splitgraph_meta schema.</p>
+<p>Whilst inside this manager, the objects are guaranteed to exist. On exit from it, the objects are marked as
+unneeded and can be garbage collected.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table</strong> – Table to materialize</p></li>
+<li><p><strong>objects</strong> – List of objects to download: one of table or objects must be specified.</p></li>
+<li><p><strong>quals</strong> – Optional list of qualifiers to be passed to the fragment engine. Fragments that definitely do
+not match these qualifiers will be dropped. See the docstring for <cite>filter_fragments</cite> for the format.</p></li>
+<li><p><strong>defer_release</strong> – If True, won’t release the objects on exit.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If defer_release is True: List of table fragments and a callback that the caller must call
+when the objects are no longer needed. If defer_release is False: just the list of table fragments.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_cache_occupancy">
+<code className="sig-name descname">get_cache_occupancy</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_cache_occupancy" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Space occupied by objects cached from external locations, in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_downloaded_objects">
+<code className="sig-name descname">get_downloaded_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">limit_to</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_downloaded_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets a list of objects currently in the Splitgraph cache (i.e. not only existing externally.)</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>limit_to</strong> – If specified, only the objects in this list will be returned.</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Set of object IDs.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_total_object_size">
+<code className="sig-name descname">get_total_object_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_total_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Space occupied by all objects on the engine, in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.make_objects_external">
+<code className="sig-name descname">make_objects_external</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.make_objects_external" title="Permalink to this definition">¶</a></dt>
+<dd><p>Uploads local objects to an external location and marks them as being cached locally (thus making it possible
+to evict or swap them out).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – Object IDs to upload. Will do nothing for objects that already exist externally.</p></li>
+<li><p><strong>handler</strong> – Object handler</p></li>
+<li><p><strong>handler_params</strong> – Extra handler parameters</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.run_eviction">
+<code className="sig-name descname">run_eviction</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">keep_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">required_space</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.run_eviction" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete enough objects with zero reference count (only those, since we guarantee that whilst refcount is >0,
+the object stays alive) to free at least <cite>required_space</cite> in the cache.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>keep_objects</strong> – List of objects (besides those with nonzero refcount) that can’t be deleted.</p></li>
+<li><p><strong>required_space</strong> – Space, in bytes, to free. If the routine can’t free at least this much space,
+it shall raise an exception. If None, removes all eligible objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">target</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a></span></em>, <em className="sig-param"><span className="n">objects_to_push</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Uploads physical objects to the remote or some other external location.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>target</strong> – Target ObjectManager</p></li>
+<li><p><strong>objects_to_push</strong> – List of object IDs to upload.</p></li>
+<li><p><strong>handler</strong> – Name of the handler to use to upload objects. Use <cite>DB</cite> to push them to the remote, <cite>FILE</cite>
+to store them in a directory that can be accessed from the client and <cite>HTTP</cite> to upload them to HTTP.</p></li>
+<li><p><strong>handler_params</strong> – For <cite>HTTP</cite>, a dictionary <cite>&#38;lbrace;“username”: username, “password”, password&#38;rbrace;</cite>. For <cite>FILE</cite>,
+a dictionary <cite>&#38;lbrace;“path”: path&#38;rbrace;</cite> specifying the directory where the objects shall be saved.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of (object_id, url) that specifies all objects were uploaded (skipping objects that
+already exist on the remote).</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.registry">
+<span id="splitgraph-core-registry-module"></span><h2 id="splitgraphcoreregistry-module">splitgraph.core.registry module<a className="headerlink" href="#module-splitgraph.core.registry" title="Permalink to this headline">¶</a></h2>
+<p>Functions for communicating with the remote Splitgraph catalog</p>
+<dl className="py function">
+<dt id="splitgraph.core.registry.get_info_key">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">get_info_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.registry.get_info_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets a configuration key from the remote registry, used to notify the client of the registry’s capabilities.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – Engine</p></li>
+<li><p><strong>key</strong> – Key to get</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.registry.set_info_key">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">set_info_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">value</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bool<span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.registry.set_info_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets a configuration value on the remote registry.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – Engine</p></li>
+<li><p><strong>key</strong> – Key to set</p></li>
+<li><p><strong>value</strong> – New value for the key</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.registry.setup_registry_mode">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">setup_registry_mode</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.registry.setup_registry_mode" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set up access policies/RLS:</p>
+<ul className="simple">
+<li><p>Normal users aren’t allowed to create tables/schemata (can’t do checkouts inside of a registry or
+upload SG objects directly to it)</p></li>
+<li><p>Normal users can’t access the splitgraph_meta schema directly: they’re only supposed to be able to
+talk to it via stored procedures in splitgraph_api. Those procedures are set up with SECURITY INVOKER
+(run with those users’ credentials) and what they can access is further restricted by RLS:</p>
+<ul>
+<li><p>images/tables/tags meta tables: can only create/update/delete records where the namespace = user ID</p></li>
+<li><p>objects/object_location tables: same. An object (piece of data) becomes owned by the user that creates
+it and still remains so even if someone else’s image starts using it. Hence, the original owner can delete
+or change it (since they control the external location they’ve uploaded it to anyway).</p></li>
+</ul>
+</li>
+</ul>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.repository">
+<span id="splitgraph-core-repository-module"></span><h2 id="splitgraphcorerepository-module">splitgraph.core.repository module<a className="headerlink" href="#module-splitgraph.core.repository" title="Permalink to this headline">¶</a></h2>
+<p>Public API for managing images in a Splitgraph repository.</p>
+<dl className="py class">
+<dt id="splitgraph.core.repository.Repository">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">Repository</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">namespace</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_manager</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.repository.Repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Splitgraph repository API</p>
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">comment</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">snap_only</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">chunk_size</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">split_changeset</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">extra_indexes</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">in_fragment_order</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><a className="headerlink" href="#splitgraph.core.repository.Repository.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commits all pending changes to a given repository, creating a new image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>image_hash</strong> – Hash of the commit. Chosen by random if unspecified.</p></li>
+<li><p><strong>comment</strong> – Optional comment to add to the commit.</p></li>
+<li><p><strong>snap_only</strong> – If True, will store the table as a full snapshot instead of delta compression</p></li>
+<li><p><strong>chunk_size</strong> – For tables that are stored as snapshots (new tables and where <cite>snap_only</cite> has been passed,
+the table will be split into fragments of this many rows.</p></li>
+<li><p><strong>split_changeset</strong> – If True, splits the changeset into multiple fragments based on
+the PK regions spanned by the current table fragments. For example, if the original table
+consists of 2 fragments, first spanning rows 1-10000, second spanning rows 10001-20000 and the
+change alters rows 1, 10001 and inserts a row with PK 20001, this will record the change as
+3 fragments: one inheriting from the first original fragment, one inheriting from the second
+and a brand new fragment. This increases the number of fragments in total but means that fewer rows
+will need to be scanned to satisfy a query.
+If False, the changeset will be stored as a single fragment inheriting from the last fragment in the
+table.</p></li>
+<li><p><strong>extra_indexes</strong> – Dictionary of &#38;lbrace;table: index_type: column: index_specific_kwargs&#38;rbrace;.</p></li>
+<li><p><strong>in_fragment_order</strong> – Dictionary of &#38;lbrace;table: list of columns&#38;rbrace;. If specified, will</p></li>
+</ul>
+</dd>
+</dl>
+<p>sort the data inside each chunk by this/these key(s) for each table.
+:param overwrite: If an object already exists, will force recreate it.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>The newly created Image object.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.commit_engines">
+<code className="sig-name descname">commit_engines</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.commit_engines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the underlying transactions on both engines that the repository uses.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.delete">
+<code className="sig-name descname">delete</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">unregister</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em>, <em className="sig-param"><span className="n">uncheckout</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.delete" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discards all changes to a given repository and optionally all of its history,
+as well as deleting the Postgres schema that it might be checked out into.
+Doesn’t delete any cached physical objects.</p>
+<p>After performing this operation, this object becomes invalid and must be discarded,
+unless init() is called again.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>unregister</strong> – Whether to purge repository history/metadata</p></li>
+<li><p><strong>uncheckout</strong> – Whether to delete the actual checked out repo. This has no effect
+if the repository is backed by a registry (rather than a local engine).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.diff">
+<code className="sig-name descname">diff</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image_1</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">image_2</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>Union<span className="p">[</span>bool<span className="p">, </span>Tuple<span className="p">[</span>int<span className="p">, </span>int<span className="p">, </span>int<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Tuple<span className="p">[</span>bool<span className="p">, </span>Tuple<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.diff" title="Permalink to this definition">¶</a></dt>
+<dd><p>Compares the state of a table in different images by materializing both tables into a temporary space
+and comparing them row-to-row.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table_name</strong> – Name of the table.</p></li>
+<li><p><strong>image_1</strong> – First image hash / object. If None, uses the state of the current staging area.</p></li>
+<li><p><strong>image_2</strong> – Second image hash / object. If None, uses the state of the current staging area.</p></li>
+<li><p><strong>aggregate</strong> – If True, returns a tuple of integers denoting added, removed and updated rows between
+the two images.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If the table doesn’t exist in one of the images, returns True if it was added and False if it was
+removed. If <cite>aggregate</cite> is True, returns the aggregation of changes as specified before.
+Otherwise, returns a list of changes where each change is a tuple of
+<cite>(True for added, False for removed, row contents)</cite>.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.dump">
+<code className="sig-name descname">dump</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">exclude_object_contents</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.dump" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates an SQL dump with the metadata required for the repository and all of its objects.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>stream</strong> – Stream to dump the data into.</p></li>
+<li><p><strong>exclude_object_contents</strong> – Only dump the metadata but not the actual object contents.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.from_schema">
+<em className="property">classmethod </em><code className="sig-name descname">from_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.from_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Convert a Postgres schema name of the format <cite>namespace/repository</cite> to a Splitgraph repository object.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.from_template">
+<em className="property">classmethod </em><code className="sig-name descname">from_template</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">template</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">namespace</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.from_template" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a Repository from an existing one replacing some of its attributes.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_all_hashes_tags">
+<code className="sig-name descname">get_all_hashes_tags</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.get_all_hashes_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets all tagged images and their hashes in a given repository.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>List of (image_hash, tag)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_local_size">
+<code className="sig-name descname">get_local_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.repository.Repository.get_local_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the actual size used by this repository’s downloaded objects.</p>
+<p>This might still be double-counted if the repository shares objects
+with other repositores.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the repository in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.repository.Repository.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the repository’s data, counting objects that are used
+by multiple images only once. This is calculated from the metadata, the on-disk
+footprint might be smaller if not all of repository’s objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the repository in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.repository.Repository.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Detects if the repository has any pending changes (schema changes, table additions/deletions, content changes).</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.head">
+<em className="property">property </em><code className="sig-name descname">head</code><a className="headerlink" href="#splitgraph.core.repository.Repository.head" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the HEAD image for the repository or None if the repository isn’t checked out.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.head_strict">
+<em className="property">property </em><code className="sig-name descname">head_strict</code><a className="headerlink" href="#splitgraph.core.repository.Repository.head_strict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the HEAD image for the repository. Raise an exception if the repository
+isn’t checked out.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.import_tables">
+<code className="sig-name descname">import_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">source_tables</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">foreign_tables</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">do_checkout</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">table_queries</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>bool<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">parent_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em>, <em className="sig-param"><span className="n">skip_validation</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.core.repository.Repository.import_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a new commit in target_repository with one or more tables linked to already-existing tables.
+After this operation, the HEAD of the target repository moves to the new commit and the new tables are
+materialized.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>tables</strong> – If not empty, must be the list of the same length as <cite>source_tables</cite> specifying names to store
+them under in the target repository.</p></li>
+<li><p><strong>source_repository</strong> – Repository to import tables from.</p></li>
+<li><p><strong>source_tables</strong> – List of tables to import. If empty, imports all tables.</p></li>
+<li><p><strong>image_hash</strong> – Image hash in the source repository to import tables from.
+Uses the current source HEAD by default.</p></li>
+<li><p><strong>foreign_tables</strong> – If True, copies all source tables to create a series of new snapshots instead of
+treating them as Splitgraph-versioned tables. This is useful for adding brand new tables
+(for example, from an FDW-mounted table).</p></li>
+<li><p><strong>do_checkout</strong> – If False, doesn’t check out the newly created image.</p></li>
+<li><p><strong>target_hash</strong> – Hash of the new image that tables is recorded under. If None, gets chosen at random.</p></li>
+<li><p><strong>table_queries</strong> – If not [], it’s treated as a Boolean mask showing which entries in the <cite>tables</cite> list are
+instead SELECT SQL queries that form the target table. The queries have to be non-schema qualified and work
+only against tables in the source repository. Each target table created is the result of the respective SQL
+query. This is committed as a new snapshot.</p></li>
+<li><p><strong>parent_hash</strong> – If not None, must be the hash of the image to base the new image on.
+Existing tables from the parent image are preserved in the new image. If None, the current repository
+HEAD is used.</p></li>
+<li><p><strong>wrapper</strong> – Override the default class for the layered querying foreign data wrapper.</p></li>
+<li><p><strong>skip_validation</strong> – Don’t validate SQL used in import statements (used by the Splitfile executor that pre-formats the SQL).</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Hash that the new image was stored under.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.init">
+<code className="sig-name descname">init</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.init" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes an empty repo with an initial commit (hash 0000…)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.materialized_table">
+<code className="sig-name descname">materialized_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.materialized_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>A context manager that returns a pointer to a read-only materialized table in a given image.
+The table is deleted on exit from the context manager.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table_name</strong> – Name of the table</p></li>
+<li><p><strong>image_hash</strong> – Image hash to materialize</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>(schema, table_name) where the materialized table is located.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.pull">
+<code className="sig-name descname">pull</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.pull" title="Permalink to this definition">¶</a></dt>
+<dd><p>Synchronizes the state of the local Splitgraph repository with its upstream, optionally downloading all new
+objects created on the remote.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>download_all</strong> – If True, downloads all objects and stores them locally. Otherwise, will only download
+required objects when a table is checked out.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the local repository for existing objects.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags.</p></li>
+<li><p><strong>single_image</strong> – Limit the download to a single image hash/tag.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.push">
+<code className="sig-name descname">push</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">reupload_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.push" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inverse of <code className="docutils literal notranslate"><span className="pre">pull</span></code>: Pushes all local changes to the remote and uploads new objects.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote repository to push changes to. If not specified, the current
+upstream is used.</p></li>
+<li><p><strong>handler</strong> – Name of the handler to use to upload objects. Use <cite>DB</cite> to push them to the remote or <cite>S3</cite>
+to store them in an S3 bucket.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the remote repository for existing objects.</p></li>
+<li><p><strong>reupload_objects</strong> – If True, will reupload objects for which metadata is uploaded.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags on the remote repository.</p></li>
+<li><p><strong>handler_options</strong> – Extra options to pass to the handler. For example, see
+<a className="reference internal" href="splitgraph.hooks/#splitgraph.hooks.s3.S3ExternalObjectHandler" title="splitgraph.hooks.s3.S3ExternalObjectHandler"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.hooks.s3.S3ExternalObjectHandler</span></code></a>.</p></li>
+<li><p><strong>single_image</strong> – Limit the upload to a single image hash/tag.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.rollback_engines">
+<code className="sig-name descname">rollback_engines</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.rollback_engines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the underlying transactions on both engines that the repository uses.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">sql: Union[psycopg2.sql.Composed, str], arguments: Optional[Any] = None, return_shape: splitgraph.engine.ResultShape = &lt;ResultShape.MANY_MANY: 4></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.core.repository.Repository.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute an arbitrary SQL statement inside of this repository’s checked out schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.set_tags">
+<code className="sig-name descname">set_tags</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tags</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.set_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets tags for multiple images.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tags</strong> – List of (image_hash, tag)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.to_schema">
+<code className="sig-name descname">to_schema</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.core.repository.Repository.to_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the engine schema that this repository gets checked out into.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.uncheckout">
+<code className="sig-name descname">uncheckout</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">force</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.uncheckout" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes the schema that the repository is checked out into</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>force</strong> – Discards all pending changes to the schema.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.upstream">
+<em className="property">property </em><code className="sig-name descname">upstream</code><a className="headerlink" href="#splitgraph.core.repository.Repository.upstream" title="Permalink to this definition">¶</a></dt>
+<dd><p>The remote upstream repository that this local repository tracks.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.clone">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">clone</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">local_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.clone" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clones a remote Splitgraph repository or synchronizes remote changes with the local ones.</p>
+<p>If the target repository has no set upstream engine, the source repository becomes its upstream.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote Repository object to clone or the repository’s name. If a name is passed,
+the repository will be looked up on the current lookup path in order to find the engine the repository
+belongs to.</p></li>
+<li><p><strong>local_repository</strong> – Local repository to clone into. If None, uses the same name as the remote.</p></li>
+<li><p><strong>download_all</strong> – If True, downloads all objects and stores them locally. Otherwise, will only download required
+objects when a table is checked out.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the local repository for existing objects.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags.</p></li>
+<li><p><strong>single_image</strong> – If set, only get a single image with this hash/tag from the source.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A locally cloned Repository object.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.getrandbits">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.core.repository.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.import_table_from_remote">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">import_table_from_remote</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">remote_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">target_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.import_table_from_remote" title="Permalink to this definition">¶</a></dt>
+<dd><p>Shorthand for importing one or more tables from a yet-uncloned remote. Here, the remote image hash is required,
+as otherwise we aren’t necessarily able to determine what the remote head is.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote Repository object</p></li>
+<li><p><strong>remote_tables</strong> – List of remote tables to import</p></li>
+<li><p><strong>remote_image_hash</strong> – Image hash to import the tables from</p></li>
+<li><p><strong>target_repository</strong> – Target repository to import the tables to</p></li>
+<li><p><strong>target_tables</strong> – Target table aliases</p></li>
+<li><p><strong>target_hash</strong> – Hash of the image that’s created with the import. Default random.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.table_exists_at">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">table_exists_at</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.repository.table_exists_at" title="Permalink to this definition">¶</a></dt>
+<dd><p>Determines whether a given table exists in a Splitgraph image without checking it out. If <cite>image_hash</cite> is None,
+determines whether the table exists in the current staging area.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.table">
+<span id="splitgraph-core-table-module"></span><h2 id="splitgraphcoretable-module">splitgraph.core.table module<a className="headerlink" href="#module-splitgraph.core.table" title="Permalink to this headline">¶</a></h2>
+<p>Table metadata-related classes.</p>
+<dl className="py class">
+<dt id="splitgraph.core.table.QueryPlan">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">QueryPlan</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.table.Table" title="splitgraph.core.table.Table">splitgraph.core.table.Table</a></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.QueryPlan" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Represents the initial query plan (fragments to query) for given columns and
+qualifiers.</p>
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.core.table.Table">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">Table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em>, <em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n">Image</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_schema</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.Table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Represents a Splitgraph table in a given image. Shouldn’t be created directly, use Table-loading
+methods in the <a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.image.Image</span></code></a> class instead.</p>
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_length">
+<code className="sig-name descname">get_length</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.table.Table.get_length" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the number of rows in this table.</p>
+<p>This might be smaller than the total number of rows in all objects belonging to this
+table as some objects might overwrite each other.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Number of rows in table</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_query_plan">
+<code className="sig-name descname">get_query_plan</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">use_cache</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.table.QueryPlan" title="splitgraph.core.table.QueryPlan">splitgraph.core.table.QueryPlan</a><a className="headerlink" href="#splitgraph.core.table.Table.get_query_plan" title="Permalink to this definition">¶</a></dt>
+<dd><p>Start planning a query (preliminary steps before object downloading,
+like qualifier filtering).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>quals</strong> – Qualifiers in CNF form</p></li>
+<li><p><strong>columns</strong> – List of columns</p></li>
+<li><p><strong>use_cache</strong> – If True, will fetch the plan from the cache for the same qualifiers and columns.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>QueryPlan</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.table.Table.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the table’s objects (including those shared with other tables).</p>
+<p>This is calculated from the metadata, the on-disk footprint might be smaller if not all of table’s
+objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the table in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.materialize">
+<code className="sig-name descname">materialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">destination</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">destination_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">lq_server</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.table.Table.materialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Materializes a Splitgraph table in the target schema as a normal Postgres table, potentially downloading all
+required objects and using them to reconstruct the table.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>destination</strong> – Name of the destination table.</p></li>
+<li><p><strong>destination_schema</strong> – Name of the destination schema.</p></li>
+<li><p><strong>lq_server</strong> – If set, sets up a layered querying FDW for the table instead using this foreign server.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query">
+<code className="sig-name descname">query</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.Table.query" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it.</p>
+<p>This is a wrapper around query_lazy() that force evaluates the results which
+might mean more fragments being materialized that aren’t needed.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of dictionaries of results</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query_indirect">
+<code className="sig-name descname">query_indirect</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Tuple<span className="p">[</span>Iterator<span className="p">[</span>bytes<span className="p">]</span><span className="p">, </span>Callable<span className="p">, </span><a className="reference internal" href="#splitgraph.core.table.QueryPlan" title="splitgraph.core.table.QueryPlan">splitgraph.core.table.QueryPlan</a><span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.query_indirect" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it. Instead of
+actual results, this returns a generator of SQL queries that the caller can use
+to get the results as well as a callback that the caller has to run after they’re
+done consuming the results.</p>
+<p>In particular, the query generator will prefer returning direct queries to
+Splitgraph objects and only when those are exhausted will it start materializing
+delta-compressed fragments.</p>
+<p>This is an advanced method: you probably want to call table.query().</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Generator of queries (bytes), a callback and a query plan object (containing stats
+that are fully populated after the callback has been called to end the query).</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query_lazy">
+<code className="sig-name descname">query_lazy</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Iterator<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.query_lazy" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Generator of dictionaries of results.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.reindex">
+<code className="sig-name descname">reindex</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">extra_indexes</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">raise_on_patch_objects</span><span className="o">=</span><span className="default_value">True</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.reindex" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run extra indexes on all objects in this table and update their metadata.
+This only works on objects that don’t have any deletions or upserts (have a deletion hash of 000000…).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>extra_indexes</strong> – Dictionary of &#38;lbrace;index_type: column: index_specific_kwargs&#38;rbrace;.</p></li>
+<li><p><strong>raise_on_patch_objects</strong> – If True, will raise an exception if any objects in the table
+overwrite any other objects. If False, will log a warning but will reindex all non-patch objects.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:returns List of objects that were reindexed.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.table.merge_index_data">
+<code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">merge_index_data</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">current_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">new_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.merge_index_data" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
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+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.engine package",
+  id: "splitgraph.engine package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#subpackages">Subpackages</a></li></ol></nav><div className="section" id="module-splitgraph.engine">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.engine" title="Permalink to this headline">¶</a></h2>
+<p>Defines the interface for a Splitgraph engine (a backing database), including running basic SQL commands,
+tracking tables for changes and uploading/downloading tables to other remote engines.</p>
+<p>By default, Splitgraph is backed by Postgres: see <a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres" title="splitgraph.engine.postgres"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.engine.postgres</span></code></a> for an example of how to
+implement a different engine.</p>
+<dl className="py class">
+<dt id="splitgraph.engine.ChangeEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ChangeEngine</code><a className="headerlink" href="#splitgraph.engine.ChangeEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.SQLEngine" title="splitgraph.engine.SQLEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.SQLEngine</span></code></a>, <code className="xref py py-class docutils literal notranslate"><span className="pre">abc.ABC</span></code></p>
+<p>An SQL engine that can perform change tracking on a set of tables.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.discard_pending_changes">
+<code className="sig-name descname">discard_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.discard_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discard recorded pending changes for a tracked table or the whole schema</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_change_key">
+<code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the key used to identify a row in a change (list of column name, column type).
+If the tracked table has a PK, we use that; if it doesn’t, the whole row is used.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_changed_tables">
+<code className="sig-name descname">get_changed_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_changed_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>List tracked tables that have pending changes</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>schema</strong> – Schema to check for changes</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of tables with changed contents</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_pending_changes">
+<code className="sig-name descname">get_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="o">=</span><span className="default_value">False</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return pending changes for a given tracked table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema the table belongs to</p></li>
+<li><p><strong>table</strong> – Table to return changes for</p></li>
+<li><p><strong>aggregate</strong> – Whether to aggregate changes or return them completely</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If aggregate is True: tuple with numbers of <cite>(added_rows, removed_rows, updated_rows)</cite>.
+If aggregate is False: A changeset. The changeset is a list of
+<cite>(pk, action (0 for Insert, 1 for Delete, 2 for Update), action_data)</cite>
+where <cite>action_data</cite> is <cite>None</cite> for Delete and <cite>&#38;lbrace;‘c’: [column_names], ‘v’: [column_values]&#38;rbrace;</cite> that
+have been inserted/updated otherwise.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_tracked_tables">
+<code className="sig-name descname">get_tracked_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_tracked_tables" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>A list of (table_schema, table_name) that the engine currently tracks for changes</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return True if the tracked schema has pending changes and False if it doesn’t.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.track_tables">
+<code className="sig-name descname">track_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.track_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Start engine-specific change tracking on a list of tables.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tables</strong> – List of (table_schema, table_name) to start tracking</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.untrack_tables">
+<code className="sig-name descname">untrack_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.untrack_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stop engine-specific change tracking on a list of tables and delete any pending changes.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tables</strong> – List of (table_schema, table_name) to start tracking</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.ObjectEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ObjectEngine</code><a className="headerlink" href="#splitgraph.engine.ObjectEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Routines for storing/applying objects as well as sharing them with other engines.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.apply_fragments">
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">target_schema</span></em>, <em className="sig-param"><span className="n">target_table</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_schema, object_table)</cite> that the objects are stored in.</p></li>
+<li><p><strong>target_schema</strong> – Schema to apply the fragment to</p></li>
+<li><p><strong>target_table</strong> – Table to apply the fragment to</p></li>
+<li><p><strong>extra_quals</strong> – Optional, extra SQL (Composable) clauses to filter new rows in the fragment on
+(e.g. SQL(“a = %s”))</p></li>
+<li><p><strong>extra_qual_args</strong> – Optional, a tuple of arguments to use with <cite>extra_quals</cite></p></li>
+<li><p><strong>schema_spec</strong> – Optional, list of (ordinal, column_name, column_type, is_pk).
+If not specified, uses the schema of target_table.</p></li>
+<li><p><strong>progress_every</strong> – If set, will report the materialization progress via
+tqdm every <cite>progress_every</cite> objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.delete_objects">
+<code className="sig-name descname">delete_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.delete_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete one or more objects from the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_ids</strong> – IDs of objects to delete</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">remote_engine</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the remote engine to the local cache</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to download</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to download the objects from.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:return List of object IDs that were downloaded.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.dump_object">
+<code className="sig-name descname">dump_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em>, <em className="sig-param"><span className="n">stream</span></em>, <em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.dump_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump an object into a series of SQL statements</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Object ID</p></li>
+<li><p><strong>stream</strong> – Text stream to dump the object into</p></li>
+<li><p><strong>schema</strong> – Schema the object lives in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.get_object_schema">
+<code className="sig-name descname">get_object_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.get_object_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the schema of a given object, returned as a list of
+(ordinal, column_name, column_type, is_pk).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_id</strong> – ID of the object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.get_object_size">
+<code className="sig-name descname">get_object_size</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.get_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the on-disk footprint of this object, in bytes
+:param object_id: ID of the object</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.store_fragment">
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span></em>, <em className="sig-param"><span className="n">deleted</span></em>, <em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">source_schema</span></em>, <em className="sig-param"><span className="n">source_table</span></em>, <em className="sig-param"><span className="n">source_schema_spec</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Store a fragment of a changed table in another table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>inserted</strong> – List of PKs that have been updated/inserted</p></li>
+<li><p><strong>deleted</strong> – List of PKs that have been deleted</p></li>
+<li><p><strong>schema</strong> – Schema to store the change in</p></li>
+<li><p><strong>table</strong> – Table to store the change in</p></li>
+<li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
+<li><p><strong>source_table</strong> – Name of the source table</p></li>
+<li><p><strong>source_schema_spec</strong> – Schema of the source table (optional)</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.store_object">
+<code className="sig-name descname">store_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_query</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bytes<span className="p">, </span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">, </span>psycopg2.sql.SQL<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_query_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Any<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stores a Splitgraph object using a source query in the actual format
+implemented by this engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>source_query</strong> – SELECT query that produces data required by the object</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the source table</p></li>
+<li><p><strong>source_query_args</strong> – Arguments to mogrify into the source query.</p></li>
+<li><p><strong>overwrite</strong> – If True, will overwrite the object if it already exists.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">remote_engine</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the local cache to the remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to upload the objects to.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.ResultShape">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ResultShape</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">value</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ResultShape" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">enum.Enum</span></code></p>
+<p>Shape that the result of a query will be coerced to</p>
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.MANY_MANY">
+<code className="sig-name descname">MANY_MANY</code><em className="property"> = 4</em><a className="headerlink" href="#splitgraph.engine.ResultShape.MANY_MANY" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.MANY_ONE">
+<code className="sig-name descname">MANY_ONE</code><em className="property"> = 3</em><a className="headerlink" href="#splitgraph.engine.ResultShape.MANY_ONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.NONE">
+<code className="sig-name descname">NONE</code><em className="property"> = 0</em><a className="headerlink" href="#splitgraph.engine.ResultShape.NONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.ONE_MANY">
+<code className="sig-name descname">ONE_MANY</code><em className="property"> = 2</em><a className="headerlink" href="#splitgraph.engine.ResultShape.ONE_MANY" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.ONE_ONE">
+<code className="sig-name descname">ONE_ONE</code><em className="property"> = 1</em><a className="headerlink" href="#splitgraph.engine.ResultShape.ONE_ONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.SQLEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">SQLEngine</code><a className="headerlink" href="#splitgraph.engine.SQLEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">abc.ABC</span></code></p>
+<p>Abstraction for a Splitgraph SQL backend. Requires any overriding classes to implement <cite>run_sql</cite> as well as
+a few other functions. Together with the <cite>information_schema</cite> (part of the SQL standard), this class uses those
+functions to implement some basic database management methods like listing, deleting, creating, dumping
+and loading tables.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.close">
+<code className="sig-name descname">close</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.close" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit and close the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.copy_table">
+<code className="sig-name descname">copy_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">with_pk_constraints</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.copy_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Copy a table in the same engine, optionally applying primary key constraints as well.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.create_schema">
+<code className="sig-name descname">create_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.create_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a schema if it doesn’t exist</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.create_table">
+<code className="sig-name descname">create_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">unlogged</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">include_comments</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.create_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a table using a previously-dumped table schema spec</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Table name to create</p></li>
+<li><p><strong>schema_spec</strong> – TableSchema</p></li>
+<li><p><strong>unlogged</strong> – If True, the table won’t be reflected in the WAL or scanned by the analyzer/autovacuum.</p></li>
+<li><p><strong>temporary</strong> – If True, a temporary table is created (the schema parameter is ignored)</p></li>
+<li><p><strong>include_comments</strong> – If True, also adds COMMENT statements for columns that have them.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.delete_schema">
+<code className="sig-name descname">delete_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.delete_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete a schema if it exists, including all the tables in it.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.delete_table">
+<code className="sig-name descname">delete_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.delete_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Drop a table from a schema if it exists</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.dump_table_creation">
+<em className="property">static </em><code className="sig-name descname">dump_table_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">unlogged</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">include_comments</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Tuple<span className="p">[</span>psycopg2.sql.Composed<span className="p">, </span>Tuple<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.dump_table_creation" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dumps the DDL for a table using a previously-dumped table schema spec</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Table name to create</p></li>
+<li><p><strong>schema_spec</strong> – TableSchema</p></li>
+<li><p><strong>unlogged</strong> – If True, the table won’t be reflected in the WAL or scanned by the analyzer/autovacuum.</p></li>
+<li><p><strong>temporary</strong> – If True, a temporary table is created (the schema parameter is ignored)</p></li>
+<li><p><strong>include_comments</strong> – If True, also adds COMMENT statements for columns that have them.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>An SQL statement that reconstructs the table schema + args to be mogrified into it.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.dump_table_sql">
+<code className="sig-name descname">dump_table_sql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table_name</span></em>, <em className="sig-param"><span className="n">stream</span></em>, <em className="sig-param"><span className="n">columns</span><span className="o">=</span><span className="default_value">'*'</span></em>, <em className="sig-param"><span className="n">where</span><span className="o">=</span><span className="default_value">''</span></em>, <em className="sig-param"><span className="n">where_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.dump_table_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump the table contents in the SQL format
+:param schema: Schema the table is located in
+:param table_name: Name of the table
+:param stream: A file-like object to write the result into.
+:param columns: SQL column spec. Default ‘*’.
+:param where: Optional, an SQL WHERE clause
+:param where_args: Arguments for the optional WHERE clause.
+:param target_schema: Schema to create the table in (default same as <cite>schema</cite>)
+:param target_table: Name of the table to insert data into (default same as <cite>table_name</cite>)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_all_tables">
+<code className="sig-name descname">get_all_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_all_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get all tables in a given schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_full_table_schema">
+<code className="sig-name descname">get_full_table_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_full_table_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Generates a list of (column ordinal, name, data type, is_pk, column comment),
+used to detect schema changes like columns being dropped/added/renamed or type changes.</p>
+<p>NB this doesn’t work for temporary tables (pg_temp) and returns an empty schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_primary_keys">
+<code className="sig-name descname">get_primary_keys</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_primary_keys" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a list of (column_name, column_type) denoting the primary keys of a given table.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_table_type">
+<code className="sig-name descname">get_table_type</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_table_type" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the type of the table (BASE or FOREIGN)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.initialize">
+<code className="sig-name descname">initialize</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.initialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Does any required initialization of the engine</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.lock_table">
+<code className="sig-name descname">lock_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.lock_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Acquire an exclusive lock on a given table, released when the transaction commits / rolls back.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.rollback">
+<code className="sig-name descname">rollback</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.rollback" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">statement</em>, <em className="sig-param">arguments=None</em>, <em className="sig-param">return_shape=&lt;ResultShape.MANY_MANY: 4></em>, <em className="sig-param">named=False</em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an arbitrary SQL statement with some arguments, return an iterator of results.
+If the statement doesn’t return any results, return None. If named=True, return named
+tuples when possible.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql_batch">
+<code className="sig-name descname">run_sql_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">statement</span></em>, <em className="sig-param"><span className="n">arguments</span></em>, <em className="sig-param"><span className="n">schema</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql_batch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a parameterized SQL statement against multiple sets of arguments.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>statement</strong> – Statement to run</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>schema</strong> – Schema to run the statement in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql_in">
+<code className="sig-name descname">run_sql_in</code><span className="sig-paren">(</span><em className="sig-param">schema: str, sql: Union[psycopg2.sql.Composed, str], arguments: None = None, return_shape: splitgraph.engine.ResultShape = &lt;ResultShape.MANY_MANY: 4></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql_in" title="Permalink to this definition">¶</a></dt>
+<dd><p>Executes a non-schema-qualified query against a specific schema.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to run the query in</p></li>
+<li><p><strong>sql</strong> – Query</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>return_shape</strong> – ReturnShape to coerce the result into.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.savepoint">
+<code className="sig-name descname">savepoint</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>None<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.savepoint" title="Permalink to this definition">¶</a></dt>
+<dd><p>At the beginning of this context manager, a savepoint is initialized and any database
+error that occurs in run_sql results in a rollback to this savepoint rather than the
+rollback of the whole transaction. At exit, the savepoint is released.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.schema_exists">
+<code className="sig-name descname">schema_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.SQLEngine.schema_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if a schema exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>schema</strong> – Schema name</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.table_exists">
+<code className="sig-name descname">table_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.SQLEngine.table_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if a table exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema name</p></li>
+<li><p><strong>table_name</strong> – Table name</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.SavepointStack">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">SavepointStack</code><a className="headerlink" href="#splitgraph.engine.SavepointStack" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">_thread._local</span></code></p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.get_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">get_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">use_socket</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">use_fdw_params</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → PostgresEngine<a className="headerlink" href="#splitgraph.engine.get_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the current global engine or a named remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>name</strong> – Name of the remote engine as specified in the config. If None, the current global engine
+is returned.</p></li>
+<li><p><strong>use_socket</strong> – Use a local UNIX socket instead of PG_HOST, PG_PORT for LOCAL engine connections.</p></li>
+<li><p><strong>use_fdw_params</strong> – Use the _FDW connection parameters (SG_ENGINE_FDW_HOST/PORT). By default,
+will infer from the global splitgraph.config.IN_FDW flag.</p></li>
+<li><p><strong>autocommit</strong> – If True, the engine will not open SQL transactions implicitly.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.set_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">set_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.set_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Switch the global engine to a different one.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.switch_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">switch_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>None<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.switch_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Switch the global engine to a different one. The engine will
+get switched back on exit from the context manager.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.validate_type">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">validate_type</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">t</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.engine.validate_type" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div><div className="section" id="splitgraph-engine-package">
+
+<div className="section" id="subpackages">
+<h2 id="subpackages">Subpackages<a className="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
+<div className="toctree-wrapper compound">
+<ul>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.engine.postgres/">splitgraph.engine.postgres package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres.engine">splitgraph.engine.postgres.engine module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+
+</div>
+</div>
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+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.engine.postgres package",
+  id: "splitgraph.engine.postgres package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphenginepostgresengine-module">splitgraph.engine.postgres.engine module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.engine.postgres">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.engine.postgres" title="Permalink to this headline">¶</a></h2>
+</div><div className="section" id="splitgraph-engine-postgres-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.engine.postgres.engine">
+<span id="splitgraph-engine-postgres-engine-module"></span><h2 id="splitgraphenginepostgresengine-module">splitgraph.engine.postgres.engine module<a className="headerlink" href="#module-splitgraph.engine.postgres.engine" title="Permalink to this headline">¶</a></h2>
+<p>Default Splitgraph engine: uses PostgreSQL to store metadata and actual objects and an audit stored procedure
+to track changes, as well as the Postgres FDW interface to upload/download objects to/from other Postgres engines.</p>
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">AuditTriggerChangeEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.postgres.engine.PsycopgEngine" title="splitgraph.engine.postgres.engine.PsycopgEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.postgres.engine.PsycopgEngine</span></code></a>, <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.ChangeEngine" title="splitgraph.engine.ChangeEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.ChangeEngine</span></code></a></p>
+<p>Change tracking based on an audit trigger stored procedure</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.discard_pending_changes">
+<code className="sig-name descname">discard_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.discard_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discard recorded pending changes for a tracked schema / table</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_changed_tables">
+<code className="sig-name descname">get_changed_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_changed_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get list of tables that have changed content</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_pending_changes">
+<code className="sig-name descname">get_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Union<span className="p">[</span>List<span className="p">[</span>Tuple<span className="p">[</span>int<span className="p">, </span>int<span className="p">]</span><span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Tuple<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span><span className="p">…</span><span className="p">]</span><span className="p">, </span>bool<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return pending changes for a given tracked table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema the table belongs to</p></li>
+<li><p><strong>table</strong> – Table to return changes for</p></li>
+<li><p><strong>aggregate</strong> – Whether to aggregate changes or return them completely</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If aggregate is True: List of tuples of (change_type, number of rows).
+If aggregate is False: List of (primary_key, change_type, change_data)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_tracked_tables">
+<code className="sig-name descname">get_tracked_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_tracked_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a list of tables that the audit trigger is working on.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return True if the tracked schema has pending changes and False if it doesn’t.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.track_tables">
+<code className="sig-name descname">track_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.track_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Install the audit trigger on the required tables</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.untrack_tables">
+<code className="sig-name descname">untrack_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.untrack_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Remove triggers from tables and delete their pending changes</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">PostgresEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine" title="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.postgres.engine.AuditTriggerChangeEngine</span></code></a>, <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.ObjectEngine" title="splitgraph.engine.ObjectEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.ObjectEngine</span></code></a></p>
+<p>An implementation of the Postgres engine for Splitgraph</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments">
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.sql.Composed<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_schema, object_table)</cite> that the objects are stored in.</p></li>
+<li><p><strong>target_schema</strong> – Schema to apply the fragment to</p></li>
+<li><p><strong>target_table</strong> – Table to apply the fragment to</p></li>
+<li><p><strong>extra_quals</strong> – Optional, extra SQL (Composable) clauses to filter new rows in the fragment on
+(e.g. SQL(“a = %s”))</p></li>
+<li><p><strong>extra_qual_args</strong> – Optional, a tuple of arguments to use with <cite>extra_quals</cite></p></li>
+<li><p><strong>schema_spec</strong> – Optional, list of (ordinal, column_name, column_type, is_pk).
+If not specified, uses the schema of target_table.</p></li>
+<li><p><strong>progress_every</strong> – If set, will report the materialization progress via
+tqdm every <cite>progress_every</cite> objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.delete_objects">
+<code className="sig-name descname">delete_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.delete_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete one or more objects from the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_ids</strong> – IDs of objects to delete</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the remote engine to the local cache</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to download</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to download the objects from.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:return List of object IDs that were downloaded.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object">
+<code className="sig-name descname">dump_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump an object into a series of SQL statements</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Object ID</p></li>
+<li><p><strong>stream</strong> – Text stream to dump the object into</p></li>
+<li><p><strong>schema</strong> – Schema the object lives in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation">
+<code className="sig-name descname">dump_object_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">if_not_exists</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → bytes<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation" title="Permalink to this definition">¶</a></dt>
+<dd><p>Generate the SQL that remounts a foreign table pointing to a Splitgraph object.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Name of the table to mount</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the table</p></li>
+<li><p><strong>if_not_exists</strong> – Add IF NOT EXISTS to the DDL</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>SQL in bytes format.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_change_key">
+<code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the key used to identify a row in a change (list of column name, column type).
+If the tracked table has a PK, we use that; if it doesn’t, the whole row is used.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_object_schema">
+<code className="sig-name descname">get_object_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_object_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the schema of a given object, returned as a list of
+(ordinal, column_name, column_type, is_pk).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_id</strong> – ID of the object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_object_size">
+<code className="sig-name descname">get_object_size</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the on-disk footprint of this object, in bytes
+:param object_id: ID of the object</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.mount_object">
+<code className="sig-name descname">mount_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_meta'</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.mount_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount an object from local storage as a foreign table.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – ID of the object</p></li>
+<li><p><strong>table</strong> – Table to mount the object into</p></li>
+<li><p><strong>schema</strong> – Schema to mount the object into</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the object.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.rename_object">
+<code className="sig-name descname">rename_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">old_object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">new_object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.rename_object" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_fragment">
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">deleted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Store a fragment of a changed table in another table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>inserted</strong> – List of PKs that have been updated/inserted</p></li>
+<li><p><strong>deleted</strong> – List of PKs that have been deleted</p></li>
+<li><p><strong>schema</strong> – Schema to store the change in</p></li>
+<li><p><strong>table</strong> – Table to store the change in</p></li>
+<li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
+<li><p><strong>source_table</strong> – Name of the source table</p></li>
+<li><p><strong>source_schema_spec</strong> – Schema of the source table (optional)</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_object">
+<code className="sig-name descname">store_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_query</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bytes<span className="p">, </span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">, </span>psycopg2.sql.SQL<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_query_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="o">=</span><span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stores a Splitgraph object using a source query in the actual format
+implemented by this engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>source_query</strong> – SELECT query that produces data required by the object</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the source table</p></li>
+<li><p><strong>source_query_args</strong> – Arguments to mogrify into the source query.</p></li>
+<li><p><strong>overwrite</strong> – If True, will overwrite the object if it already exists.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.sync_object_mounts">
+<code className="sig-name descname">sync_object_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.sync_object_mounts" title="Permalink to this definition">¶</a></dt>
+<dd><p>Scan through local object storage and synchronize it with the foreign tables in
+splitgraph_meta (unmounting non-existing objects and mounting existing ones).</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.unmount_objects">
+<code className="sig-name descname">unmount_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.unmount_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Unmount objects from splitgraph_meta (this doesn’t delete the physical files.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the local cache to the remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to upload the objects to.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">PsycopgEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.SQLEngine" title="splitgraph.engine.SQLEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.SQLEngine</span></code></a></p>
+<p>Postgres SQL engine backed by a Psycopg connection.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.close">
+<code className="sig-name descname">close</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.close" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit and close the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.close_others">
+<code className="sig-name descname">close_others</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.close_others" title="Permalink to this definition">¶</a></dt>
+<dd><p>Close and release all other connections to the connection pool.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.connection">
+<em className="property">property </em><code className="sig-name descname">connection</code><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.connection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Engine-internal Psycopg connection.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.delete_database">
+<code className="sig-name descname">delete_database</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">database</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.delete_database" title="Permalink to this definition">¶</a></dt>
+<dd><p>Helper function to drop a database using the admin connection</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>database</strong> – Database name to drop</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.dump_table_sql">
+<code className="sig-name descname">dump_table_sql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'*'</span></em>, <em className="sig-param"><span className="n">where</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">''</span></em>, <em className="sig-param"><span className="n">where_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.dump_table_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump the table contents in the SQL format
+:param schema: Schema the table is located in
+:param table_name: Name of the table
+:param stream: A file-like object to write the result into.
+:param columns: SQL column spec. Default ‘*’.
+:param where: Optional, an SQL WHERE clause
+:param where_args: Arguments for the optional WHERE clause.
+:param target_schema: Schema to create the table in (default same as <cite>schema</cite>)
+:param target_table: Name of the table to insert data into (default same as <cite>table_name</cite>)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.get_primary_keys">
+<code className="sig-name descname">get_primary_keys</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.get_primary_keys" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inspects the Postgres information_schema to get the primary keys for a given table.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.initialize">
+<code className="sig-name descname">initialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">skip_object_handling</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">skip_create_database</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.initialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create the Splitgraph Postgres database and install the audit trigger</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>skip_object_handling</strong> – If True, skips installation of
+audit triggers and other object management routines for engines
+that don’t need change tracking or checkouts.</p></li>
+<li><p><strong>skip_create_database</strong> – Don’t create the Splitgraph database</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.lock_table">
+<code className="sig-name descname">lock_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.lock_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Acquire an exclusive lock on a given table, released when the transaction commits / rolls back.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.rollback">
+<code className="sig-name descname">rollback</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.rollback" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call">
+<code className="sig-name descname">run_api_call</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">call</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">*</span><span className="n">args</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_api'</span></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call_batch">
+<code className="sig-name descname">run_api_call_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">call</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">argslist</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_api'</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call_batch" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_chunked_sql">
+<code className="sig-name descname">run_chunked_sql</code><span className="sig-paren">(</span><em className="sig-param">statement: Union[bytes, psycopg2.sql.Composed, str, psycopg2.sql.SQL], arguments: Sequence[Any], return_shape: Optional[splitgraph.engine.ResultShape] = &lt;ResultShape.MANY_MANY: 4>, chunk_size: int = 1000, chunk_position: int = -1</em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_chunked_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Because the Splitgraph API has a request size limitation, certain
+SQL calls with variadic arguments are going to be too long to fit that. This function
+runs an SQL query against a set of broken up arguments and returns the combined result.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">statement: Union[bytes, psycopg2.sql.Composed, str, psycopg2.sql.SQL], arguments: Optional[Sequence[Any]] = None, return_shape: Optional[splitgraph.engine.ResultShape] = &lt;ResultShape.MANY_MANY: 4>, named: bool = False</em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an arbitrary SQL statement with some arguments, return an iterator of results.
+If the statement doesn’t return any results, return None. If named=True, return named
+tuples when possible.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_sql_batch">
+<code className="sig-name descname">run_sql_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">statement</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">arguments</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">max_size</span><span className="o">=</span><span className="default_value">261000</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_sql_batch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a parameterized SQL statement against multiple sets of arguments.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>statement</strong> – Statement to run</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>schema</strong> – Schema to run the statement in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.splitgraph_version">
+<em className="property">property </em><code className="sig-name descname">splitgraph_version</code><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.splitgraph_version" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the version of the Splitgraph library installed on the engine
+and by association the version of the engine itself.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.add_ud_flag_column">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">add_ud_flag_column</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_schema</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.add_ud_flag_column" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.chunk">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">chunk</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sequence</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>T<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">chunk_size</span><span className="p">:</span> <span className="n">int</span> <span className="o">=</span> <span className="default_value">1000</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>List<span className="p">[</span>T<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.chunk" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.get_change_key">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.get_conn_str">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">get_conn_str</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.engine.postgres.engine.get_conn_str" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.hooks.mdx b/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.hooks.mdx
new file mode 100644
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--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.hooks.mdx
@@ -0,0 +1,283 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.hooks package",
+  id: "splitgraph.hooks package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhooksexternal_objects-module">splitgraph.hooks.external_objects module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhookss3-module">splitgraph.hooks.s3 module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhookssplitfile_commands-module">splitgraph.hooks.splitfile_commands module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.hooks">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.hooks" title="Permalink to this headline">¶</a></h2>
+<p>Various hooks for extending Splitgraph, including:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>External object handlers (<a className="reference internal" href="#module-splitgraph.hooks.external_objects" title="splitgraph.hooks.external_objects"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects</span></code></a>) allowing to download/upload objects
+to locations other than the remote Splitgraph engine.</p></li>
+<li><p>Data sources (<code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.data_sources</span></code>) that allow to add data to Splitgraph, e.g.</p></li>
+</ul>
+<blockquote>
+<div><p>using the Postgres engine’s FDW interface to mount other external databases on the engine.</p>
+</div></blockquote>
+<ul className="simple">
+<li><p>Splitfile commands (<a className="reference internal" href="#module-splitgraph.hooks.splitfile_commands" title="splitgraph.hooks.splitfile_commands"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.splitfile_commands</span></code></a>) to define custom data transformation steps
+compatible with the Splitfile framework.</p></li>
+</ul>
+</div></blockquote>
+</div><div className="section" id="splitgraph-hooks-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.hooks.external_objects">
+<span id="splitgraph-hooks-external-objects-module"></span><h2 id="splitgraphhooksexternal_objects-module">splitgraph.hooks.external_objects module<a className="headerlink" href="#module-splitgraph.hooks.external_objects" title="Permalink to this headline">¶</a></h2>
+<p>Hooks for registering handlers to upload/download objects from external locations into Splitgraph’s cache.</p>
+<dl className="py class">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">ExternalObjectHandler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Framework for allowing to dump objects from the Splitgraph cache to an external location. This allows
+the objects to be stored somewhere other than the actual remote engine.</p>
+<p>External object handlers must extend this class and be registered in the Splitgraph config.</p>
+<p>For an example of how this can be used, see splitgraph.hooks.s3: it’s a handler allowing objects to be
+uploaded to S3/S3-compatible host using the Minio API. It’s registered in the config as follows:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="p">[</span><span className="n">external_handlers</span><span className="p">]</span>
+<span className="n">S3</span><span className="o">=</span><span className="n">splitgraph</span><span className="o">.</span><span className="n">hooks</span><span className="o">.</span><span className="n">s3</span><span className="o">.</span><span className="n">S3ExternalObjectHandler</span>
+</pre></div>
+</div>
+<p>The protocol and the URLs returned by this handler are stored in splitgraph_meta.external_objects
+and used to download the objects back into the Splitgraph cache when they are needed.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the external location into the Splitgraph cache.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_id, object_url)</cite> that this handler had previosly
+uploaded the objects to.</p></li>
+<li><p><strong>remote_engine</strong> – An instance of Engine class that the objects will be registered on</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of object IDs that have been successfully downloaded.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the Splitgraph cache to an external location</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – An instance of Engine class that the objects will be registered on</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of successfully uploaded object IDs and URLs they can be found at.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.external_objects.get_external_object_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">get_external_object_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler">splitgraph.hooks.external_objects.ExternalObjectHandler</a><a className="headerlink" href="#splitgraph.hooks.external_objects.get_external_object_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Load an external protocol handler by its name, initializing it with optional parameters.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.external_objects.register_upload_download_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">register_upload_download_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_class</span><span className="p">:</span> <span className="n">Callable<span className="p">[</span><span className="p">[</span><span className="p">…</span><span className="p">]</span><span className="p">, </span><a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler">splitgraph.hooks.external_objects.ExternalObjectHandler</a><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.external_objects.register_upload_download_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Register an external protocol handler. See the docstring for <cite>get_upload_download_handler</cite> for the required
+signatures of the handler functions.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.mount_handlers">
+<span id="splitgraph-hooks-mount-handlers-module"></span><h2 id="splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module<a className="headerlink" href="#module-splitgraph.hooks.mount_handlers" title="Permalink to this headline">¶</a></h2>
+<p>Extra wrapper code for mount handlers</p>
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_kwargs</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mounts a foreign database via an FDW (without creating new Splitgraph objects)</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Mountpoint to import the new tables into.</p></li>
+<li><p><strong>mount_handler</strong> – The type of the mounted database.</p></li>
+<li><p><strong>handler_kwargs</strong> – Dictionary of options to pass to the mount handler.</p></li>
+<li><p><strong>overwrite</strong> – Delete the foreign server if it already exists. Used by mount_postgres for data pulls.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_postgres">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_postgres</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_postgres" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a Postgres database.</p>
+<p>Mounts a schema on a remote Postgres database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Port the Postgres server is running on.</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>dbname</strong> – Remote database name.</p></li>
+<li><p><strong>remote_schema</strong> – Remote schema name.</p></li>
+<li><p><strong>extra_server_args</strong> – Dictionary of extra arguments to pass to the foreign server</p></li>
+<li><p><strong>tables</strong> – Tables to mount (default all). If a list, then will use IMPORT FOREIGN SCHEMA.</p></li>
+</ul>
+</dd>
+</dl>
+<p>If a dictionary, must have the format &#38;lbrace;“table_name”: &#38;lbrace;“col_1”: “type_1”, …&#38;rbrace;&#38;rbrace;.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.s3">
+<span id="splitgraph-hooks-s3-module"></span><h2 id="splitgraphhookss3-module">splitgraph.hooks.s3 module<a className="headerlink" href="#module-splitgraph.hooks.s3" title="Permalink to this headline">¶</a></h2>
+<p>Plugin for uploading Splitgraph objects from the cache to an external S3-like object store</p>
+<dl className="py class">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">S3ExternalObjectHandler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects.ExternalObjectHandler</span></code></a></p>
+<p>Uploads/downloads the objects to/from S3/S3-compatible host using the Minio client.</p>
+<p>The handler is “attached” to a given registry which manages issuing pre-signed
+GET/PUT URLs.</p>
+<p>The handler supports a parameter <cite>threads</cite> specifying the number of threads
+used to upload the objects.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from Minio.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>objects</strong> – List of (object ID, object URL (object ID it’s stored under))</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects to Minio</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_engine</strong> – Remote Engine class</p></li>
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of tuples with successfully uploaded objects and their URLs.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.s3.get_object_download_urls">
+<code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">get_object_download_urls</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_engine</span></em>, <em className="sig-param"><span className="n">remote_object_ids</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.get_object_download_urls" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.s3.get_object_upload_urls">
+<code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">get_object_upload_urls</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_engine</span></em>, <em className="sig-param"><span className="n">objects</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.get_object_upload_urls" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.splitfile_commands">
+<span id="splitgraph-hooks-splitfile-commands-module"></span><h2 id="splitgraphhookssplitfile_commands-module">splitgraph.hooks.splitfile_commands module<a className="headerlink" href="#module-splitgraph.hooks.splitfile_commands" title="Permalink to this headline">¶</a></h2>
+<p>A framework for custom Splitfile commands. The execution flow is as follows:</p>
+<blockquote>
+<div><ul>
+<li><p>When the Splitfile executor finds an unknown command, it looks for an entry in the config file:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="p">[</span><span className="n">commands</span><span className="p">]</span>
+<span className="n">RUN</span><span className="o">=</span><span className="n">splitgraph</span><span className="o">.</span><span className="n">plugins</span><span className="o">.</span><span className="n">Run</span>
+</pre></div>
+</div>
+</li>
+<li><p>The command class must extend this class, initialized at every invocation time.</p></li>
+<li><p>The command’s <cite>calc_hash()</cite> method is run. The resultant command context hash is combined with the current
+image hash to produce the new image hash: if it already exists, then the image is simply checked out.</p></li>
+<li><p>Otherwise (or if calc_hash is undefined or returns None), <cite>execute()</cite>, where the actual command should be
+implemented, is run. If it returns a hash, this hash is used for the new image. If this hash already exists,
+the existing image is checked out instead. If the command returns None, a random hash is generated for the
+new image.</p></li>
+</ul>
+</div></blockquote>
+<dl className="py class">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.splitfile_commands.</code><code className="sig-name descname">PluginCommand</code><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Base class for custom Splitfile commands.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand.calc_hash">
+<code className="sig-name descname">calc_hash</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span></em>, <em className="sig-param"><span className="n">args</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand.calc_hash" title="Permalink to this definition">¶</a></dt>
+<dd><p>Calculates the command context hash for this custom command. If either the command context hash or the
+previous image hash has changed, then the image hash produced by this command will change.
+Consequently, two commands with the same command context hashes are assumed to have the same effect
+on any Splitgraph images.</p>
+<p>This is supposed to be a lightweight method intended for pre-flight image hash calculations
+(without performing the actual transformation). If it returns None, the actual transformation is run anyway.</p>
+<p>For example, for a command that imports some data from an external URL, this could be the hash of the last
+modified timestamp provided by the external data vendor. If the timestamp is unchanged, the data is unchanged
+and so actual command won’t be re-executed.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>repository</strong> – SG Repository object pointed to a schema with the checked out image
+the command is being run against.</p></li>
+<li><p><strong>args</strong> – Positional arguments to the command</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Command context hash (a string of 64 hexadecimal digits)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand.execute">
+<code className="sig-name descname">execute</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span></em>, <em className="sig-param"><span className="n">args</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand.execute" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute the custom command against the target schema, optionally returning the new image hash. The contract
+for the command is as follows (though it is not currently enforced by the runtime):</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>Has to use get_engine().run_sql (or run_sql_batch) to interact with the engine.</p></li>
+<li><p>Can only write to the schema with the checked-out repository (run_sql runs non-schema-qualified
+statements against the correct schema).</p></li>
+<li><p>Can inspect splitgraph_meta (e.g. to find the current HEAD) for the repository.</p></li>
+<li><p>Can’t alter the versioning of the repository.</p></li>
+</ul>
+</div></blockquote>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>repository</strong> – SG Repository object pointed to a schema with the checked out image
+the command is being run against.</p></li>
+<li><p><strong>args</strong> – Positional arguments to the command</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Command context hash (a string of 64 hexadecimal digits). If calc_hash() had previously returned
+a hash, this hash is ignored. If both this command and calc_hash() return None, the hash is randomly
+generated.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.mdx b/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.mdx
new file mode 100644
index 00000000..30cc657c
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.mdx
@@ -0,0 +1,254 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph package",
+  id: "splitgraph package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#subpackages">Subpackages</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphexceptions-module">splitgraph.exceptions module</a></li><li className="toc-item toc-item-h1"><a className="toc-link toc-link-h1" href="#indices-and-tables">Indices and tables</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph" title="Permalink to this headline">¶</a></h2>
+</div><div className="section" id="splitgraph-package">
+
+<div className="section" id="subpackages">
+<h2 id="subpackages">Subpackages<a className="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
+<div className="toctree-wrapper compound">
+<ul>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.config/">splitgraph.config package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.argument_config">splitgraph.config.argument_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.config">splitgraph.config.config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.config_file_config">splitgraph.config.config_file_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.default_config">splitgraph.config.default_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.environment_config">splitgraph.config.environment_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.keys">splitgraph.config.keys module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.system_config">splitgraph.config.system_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.core/">splitgraph.core package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.engine">splitgraph.core.engine module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.image">splitgraph.core.image module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.object_manager">splitgraph.core.object_manager module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.registry">splitgraph.core.registry module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.repository">splitgraph.core.repository module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.table">splitgraph.core.table module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.engine/">splitgraph.engine package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine/#subpackages">Subpackages</a><ul>
+<li className="toctree-l3"><a className="reference internal" href="splitgraph.engine.postgres/">splitgraph.engine.postgres package</a><ul>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#submodules">Submodules</a></li>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres.engine">splitgraph.engine.postgres.engine module</a></li>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine/#module-splitgraph.engine">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.hooks/">splitgraph.hooks package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.external_objects">splitgraph.hooks.external_objects module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.mount_handlers">splitgraph.hooks.mount_handlers module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.s3">splitgraph.hooks.s3 module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.splitfile_commands">splitgraph.hooks.splitfile_commands module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.splitfile/">splitgraph.splitfile package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#module-splitgraph.splitfile.execution">splitgraph.splitfile.execution module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#module-splitgraph.splitfile">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.exceptions">
+<span id="splitgraph-exceptions-module"></span><h2 id="splitgraphexceptions-module">splitgraph.exceptions module<a className="headerlink" href="#module-splitgraph.exceptions" title="Permalink to this headline">¶</a></h2>
+<p>Exceptions that can be raised by the Splitgraph library.</p>
+<dl className="py exception">
+<dt id="splitgraph.exceptions.APICompatibilityError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">APICompatibilityError</code><a className="headerlink" href="#splitgraph.exceptions.APICompatibilityError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions related to API incompatibilities</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.AuthAPIError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">AuthAPIError</code><a className="headerlink" href="#splitgraph.exceptions.AuthAPIError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by the Auth API</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.CheckoutError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">CheckoutError</code><a className="headerlink" href="#splitgraph.exceptions.CheckoutError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to checking out/committing repositories</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.DataSourceError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">DataSourceError</code><a className="headerlink" href="#splitgraph.exceptions.DataSourceError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by mount handlers.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.DockerUnavailableError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">DockerUnavailableError</code><a className="headerlink" href="#splitgraph.exceptions.DockerUnavailableError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Could not connect to the Docker daemon.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.EngineInitializationError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">EngineInitializationError</code><a className="headerlink" href="#splitgraph.exceptions.EngineInitializationError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when the engine isn’t initialized (no splitgraph_meta schema or audit triggers)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ExternalHandlerError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ExternalHandlerError</code><a className="headerlink" href="#splitgraph.exceptions.ExternalHandlerError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by external object handlers.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLAPIError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLAPIError</code><a className="headerlink" href="#splitgraph.exceptions.GQLAPIError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>GQL API errors</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLRepoDoesntExistError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLRepoDoesntExistError</code><a className="headerlink" href="#splitgraph.exceptions.GQLRepoDoesntExistError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Repository doesn’t exist</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLUnauthenticatedError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLUnauthenticatedError</code><a className="headerlink" href="#splitgraph.exceptions.GQLUnauthenticatedError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Unauthenticated (user not logged in)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLUnauthorizedError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLUnauthorizedError</code><a className="headerlink" href="#splitgraph.exceptions.GQLUnauthorizedError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Unauthorized (e.g. repository isn’t writeable by the user)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ImageNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ImageNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.ImageNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A Splitgraph image doesn’t exist.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.IncompleteObjectDownloadError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">IncompleteObjectDownloadError</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reason</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>BaseException<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.exceptions.IncompleteObjectDownloadError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when an error is encountered during download of multiple objects.
+The handler is supposed to perform any necessary
+cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.IncompleteObjectUploadError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">IncompleteObjectUploadError</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reason</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>BaseException<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_object_urls</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.exceptions.IncompleteObjectUploadError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when an error is encountered during upload of multiple objects.
+The handler is supposed to perform any necessary
+cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectCacheError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectCacheError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectCacheError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Issues with the object cache (not enough space)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectIndexingError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectIndexingError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectIndexingError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to indexing objects</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectMountingError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectMountingError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectMountingError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to incompatible objects.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when a physical object doesn’t exist in the cache.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.RepositoryNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">RepositoryNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.RepositoryNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A Splitgraph repository doesn’t exist.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.SplitGraphError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">SplitGraphError</code><a className="headerlink" href="#splitgraph.exceptions.SplitGraphError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">Exception</span></code></p>
+<p>A generic Splitgraph exception.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.SplitfileError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">SplitfileError</code><a className="headerlink" href="#splitgraph.exceptions.SplitfileError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Generic error class for Splitfile interpretation/execution errors.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.TableNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">TableNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.TableNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A table doesn’t exist in an image</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.UnsupportedSQLError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">UnsupportedSQLError</code><a className="headerlink" href="#splitgraph.exceptions.UnsupportedSQLError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised for unsupported SQL statements, for example, containing schema-qualified tables when the statement
+is supposed to be used in an SQL/IMPORT Splitfile command.</p>
+</dd></dl>
+
+</div>
+
+</div>
+<div className="section" id="indices-and-tables">
+<h1 id="indices-and-tables">Indices and tables<a className="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h1>
+<ul className="simple">
+<li><p><a className="reference internal" href="../genindex/"><span className="std std-ref">Index</span></a></p></li>
+<li><p><a className="reference internal" href="../py-modindex/"><span className="std std-ref">Module Index</span></a></p></li>
+<li><p><a className="reference internal" href="../search/"><span className="std std-ref">Search Page</span></a></p></li>
+</ul>
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.splitfile.mdx b/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.splitfile.mdx
new file mode 100644
index 00000000..b0460786
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.4/splitgraph.splitfile.mdx
@@ -0,0 +1,89 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.splitfile package",
+  id: "splitgraph.splitfile package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphsplitfileexecution-module">splitgraph.splitfile.execution module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.splitfile">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.splitfile" title="Permalink to this headline">¶</a></h2>
+<p>Splitfile interpreter: a set of tools on top of the core Splitgraph versioning and image management to give
+the user a Dockerfile-like experience for building Splitgraph images (caching, consistent hashing, a declarative
+language).</p>
+</div><div className="section" id="splitgraph-splitfile-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.splitfile.execution">
+<span id="splitgraph-splitfile-execution-module"></span><h2 id="splitgraphsplitfileexecution-module">splitgraph.splitfile.execution module<a className="headerlink" href="#module-splitgraph.splitfile.execution" title="Permalink to this headline">¶</a></h2>
+<p>Functions for executing Splitfiles.</p>
+<dl className="py class">
+<dt id="splitgraph.splitfile.execution.ImageMapper">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">ImageMapper</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.get_provenance_data">
+<code className="sig-name descname">get_provenance_data</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.get_provenance_data" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.setup_lq_mounts">
+<code className="sig-name descname">setup_lq_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.setup_lq_mounts" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.teardown_lq_mounts">
+<code className="sig-name descname">teardown_lq_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.teardown_lq_mounts" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.execute_commands">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">execute_commands</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">commands</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">output</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.core/#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">output_base</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'00000000000000000000000000000000'</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.execute_commands" title="Permalink to this definition">¶</a></dt>
+<dd><p>Executes a series of Splitfile commands.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>commands</strong> – A string with the raw Splitfile.</p></li>
+<li><p><strong>params</strong> – A dictionary of parameters to be applied to the Splitfile (<cite>$&#38;lbrace;PARAM&#38;rbrace;</cite> is replaced with the specified
+parameter value).</p></li>
+<li><p><strong>output</strong> – Output repository to execute the Splitfile against.</p></li>
+<li><p><strong>output_base</strong> – If not None, a revision that gets checked out for all Splitfile actions to be committed
+on top of it.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.getrandbits">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.splitfile.execution.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.prevalidate_imports">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">prevalidate_imports</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_names</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table_queries</span><span className="p">:</span> <span className="n">List<span className="p">[</span>bool<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.splitfile.execution.prevalidate_imports" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.rebuild_image">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">rebuild_image</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n"><a className="reference internal" href="splitgraph.core/#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a></span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span><a className="reference internal" href="splitgraph.core/#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.rebuild_image" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreates the Splitfile used to create a given image and reruns it, replacing its dependencies with a different
+set of versions.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>image</strong> – Image object</p></li>
+<li><p><strong>source_replacement</strong> – A map that specifies replacement images/tags for repositories that the image depends on</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.5/metadata.json b/content/docs/9500_python-api/9000_versions/v0.2.5/metadata.json
new file mode 100644
index 00000000..cdcbfdc1
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.5/metadata.json
@@ -0,0 +1,23 @@
+{
+  "title": "v0.2.5",
+  "updated_at": "2021-01-26T14:47:49.946Z",
+  "release": {
+    "id": 36852954,
+    "tag_name": "v0.2.5",
+    "target_commitish": "503e1ef49355352e46a7407c2a75ef40fda887f7",
+    "created_at": "2021-01-25T11:24:56Z",
+    "published_at": "2021-01-25T11:57:52Z",
+    "assets": [
+      {
+        "id": 31148972,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/31148972",
+        "name": "sgr-docs-bin.tar.gz",
+        "label": "",
+        "created_at": "2021-01-25T11:52:07Z",
+        "updated_at": "2021-01-25T11:52:07Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.5/sgr-docs-bin.tar.gz"
+      }
+    ]
+  },
+  "isLatest": false
+}
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.config.mdx b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.config.mdx
new file mode 100644
index 00000000..3201eefe
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.config.mdx
@@ -0,0 +1,337 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.config package",
+  id: "splitgraph.config package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigargument_config-module">splitgraph.config.argument_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigconfig-module">splitgraph.config.config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigconfig_file_config-module">splitgraph.config.config_file_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigdefault_config-module">splitgraph.config.default_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigenvironment_config-module">splitgraph.config.environment_config module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigkeys-module">splitgraph.config.keys module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphconfigsystem_config-module">splitgraph.config.system_config module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.config">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.config" title="Permalink to this headline">¶</a></h2>
+<p>The CONFIG object is created and exported once __at import <a href="#id1"><span className="problematic" id="id2">time__</span></a>
+Calling CONFIG[“KEY”] directly should be sufficient in most cases,
+except when a config value has changed since importing CONFIG.
+In that case, create_config_dict() can provide an updated config dict</p>
+<p>Priority (highest to lowest):</p>
+<blockquote>
+<div><ol className="arabic simple">
+<li><p>Command line argument values</p></li>
+<li><p>Environment variable values</p></li>
+<li><p>Config file values in [defaults] section</p></li>
+<li><p>DEFAULTS (see keys.py)</p></li>
+</ol>
+</div></blockquote>
+</div><div className="section" id="splitgraph-config-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.config.argument_config">
+<span id="splitgraph-config-argument-config-module"></span><h2 id="splitgraphconfigargument_config-module">splitgraph.config.argument_config module<a className="headerlink" href="#module-splitgraph.config.argument_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.argument_config.get_arg_tuples">
+<code className="sig-prename descclassname">splitgraph.config.argument_config.</code><code className="sig-name descname">get_arg_tuples</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.argument_config.get_arg_tuples" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the raw (argN, argN+1) tuples from sys.argv</p>
+<p>We could also use click to parse the flags ahead of time, and then pass
+the parsed flag object into SystemConfigGetters. But this way, we avoid
+having to pass down variables from click just to get config values.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.argument_config.get_argument_config_value">
+<code className="sig-prename descclassname">splitgraph.config.argument_config.</code><code className="sig-name descname">get_argument_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.argument_config.get_argument_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get get the value of an argument, where value is the argument
+immediately following the argument matching a key in ARG_KEYS, e.g.:</p>
+<blockquote>
+<div><p>SYS_ARGS = [“–namespace”, “foo”]
+–> return “foo”</p>
+</div></blockquote>
+<p>Otherwise, return default_return</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.config">
+<span id="splitgraph-config-config-module"></span><h2 id="splitgraphconfigconfig-module">splitgraph.config.config module<a className="headerlink" href="#module-splitgraph.config.config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.config.chain_getters">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">chain_getters</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">getters</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Callable<span className="p">[</span><span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.chain_getters" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.create_config_dict">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">create_config_dict</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.create_config_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create and return a dict of all known config values</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_all_in_section">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_section" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get all subsections from a config (e.g. config[“data_sources”])</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_all_in_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_subsection" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_from_section">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_from_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_from_section" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_from_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_from_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_from_subsection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a singleton variable from a subsection of the config,
+e.g. config[“remotes”][“data.splitgraph.com”][“SG_ENGINE_HOST”]</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.get_singleton">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_singleton</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.config.config.get_singleton" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a singleton (not a section) variable from the config.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.lazy_get_config_value">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">lazy_get_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.lazy_get_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the config value for a key in the following precedence
+Otherwise return default_return</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.patch_config">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">patch_config</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">patch</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.patch_config" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recursively updates a nested configuration dictionary:</p>
+<dl className="simple">
+<dt>patch_config(</dt><dd><dl className="simple">
+<dt>&#38;lbrace;“key_1”: “value_1”,</dt><dd><p>“dict_1”: &#38;lbrace;“key_1”: “value_1”&#38;rbrace;&#38;rbrace;,</p>
+</dd>
+<dt>&#38;lbrace;“key_1”: “value_2”,</dt><dd><p>“dict_1”: &#38;lbrace;“key_2”: “value_2”&#38;rbrace;&#38;rbrace;) ==         &#38;lbrace;“key_1”: “value_2”,
+“dict_1”: &#38;lbrace;“key_1”: “value_1”, “key_2”: “value_2”&#38;rbrace;&#38;rbrace;</p>
+</dd>
+</dl>
+</dd>
+</dl>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>config</strong> – Config dictionary</p></li>
+<li><p><strong>patch</strong> – Dictionary with the path</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>New patched dictionary</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.set_in_subsection">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">set_in_subsection</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">subsection</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">item</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">value</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.config.config.set_in_subsection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set a singleton variable in a subsection of the config,
+e.g. config[“remotes”][“data.splitgraph.com”][“SG_ENGINE_HOST”]</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_arguments">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_arguments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_arguments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading sys.argv
+and overwriting any keys.</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_env_vars">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_env_vars</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_env_vars" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading os.environ
+and overwriting any keys.</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config.update_config_dict_from_file">
+<code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">update_config_dict_from_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">sg_config_file</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.update_config_dict_from_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Given an existing config_dict, update after reading sg_config_file
+and overwriting any keys according to the rules in config_file_config</p>
+<p>Return updated copy of config_dict.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.config_file_config">
+<span id="splitgraph-config-config-file-config-module"></span><h2 id="splitgraphconfigconfig_file_config-module">splitgraph.config.config_file_config module<a className="headerlink" href="#module-splitgraph.config.config_file_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.accumulate_lists">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">accumulate_lists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.accumulate_lists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Transform a <cite>config_dict</cite> to “accumulate” objects “nested” via key name</p>
+<p>Because  ConfigParser does not support nesting, we implement our own
+syntax via the key names of sections. The ‘:’ character can be used in
+section names to specify the left and right key. Example:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="o">.</span><span className="n">ini</span> <span className="n">config</span>             <span className="n">new</span> <span className="n">config_dict</span>
+
+                  <span className="o">-----></span>
+                    <span className="o">|</span>
+<span className="p">[</span><span className="n">remote</span><span className="p">:</span> <span className="n">remote1</span><span className="p">]</span>   <span className="o">|</span>   <span className="p">&#38;lbrace;</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">foo</span>      <span className="o">|</span>       <span className="o">**</span><span className="n">rest_of_config_dict</span><span className="p">,</span>
+                    <span className="o">|</span>       <span className="s2">"remotes"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+<span className="p">[</span><span className="n">origin</span><span className="p">:</span> <span className="n">origin1</span><span className="p">]</span>   <span className="o">|</span>           <span className="s2">"remote1"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">bar</span>      <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"foo"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;</span>
+<span className="p">[</span><span className="n">origin</span><span className="p">:</span> <span className="n">origin2</span><span className="p">]</span>   <span className="o">|</span>       <span className="p">&#38;rbrace;,</span>
+<span className="n">SG_ENV_VAR</span><span className="o">=</span><span className="n">bax</span>      <span className="o">|</span>       <span className="s2">"origins"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>           <span className="s2">"origin1"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"bar"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;,</span>
+                    <span className="o">|</span>           <span className="s2">"origin2"</span><span className="p">:</span> <span className="p">&#38;lbrace;</span>
+                    <span className="o">|</span>               <span className="s2">"SG_ENV_VAR"</span><span className="p">:</span> <span className="s2">"bax"</span>
+                    <span className="o">|</span>           <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>       <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>   <span className="p">&#38;rbrace;</span>
+                    <span className="o">|</span>
+                  <span className="o">-----></span>
+</pre></div>
+</div>
+<p>:return a new, updated copy of <cite>config_dict</cite></p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.get_config_dict_from_config_file">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">get_config_dict_from_config_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sg_file</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.get_config_dict_from_config_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a dict from ConfigParser, apply transformations to it.</p>
+<p>Return parsed and transformed <cite>config_dict</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.get_config_dict_from_file">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">get_config_dict_from_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sg_file</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.get_config_dict_from_file" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.hoist_section">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">hoist_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'defaults'</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.hoist_section" title="Permalink to this definition">¶</a></dt>
+<dd><p>If a section exists called &lt;hoist_section>, hoist it to the top level
+This is useful for overriding default configs from within a config file</p>
+<p>Transform <cite>config_dict</cite> to “hoist” any config values from a section
+into the top level (thus, overriding environment variables),
+when the name of the section matches <cite>hoist_section</cite>.</p>
+<p>Return a new, updated copy of <cite>config_dict</cite>.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.config_file_config.transform_config_dict">
+<code className="sig-prename descclassname">splitgraph.config.config_file_config.</code><code className="sig-name descname">transform_config_dict</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config_dict</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config_file_config.transform_config_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply transformations to the raw ConfigParser.config object</p>
+<blockquote>
+<div><ol className="arabic simple">
+<li><p>hoist_section</p></li>
+<li><p>accumulate_lists</p></li>
+</ol>
+</div></blockquote>
+<p>Return the a new, updated copy of <cite>config_dict</cite>.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.default_config">
+<span id="splitgraph-config-default-config-module"></span><h2 id="splitgraphconfigdefault_config-module">splitgraph.config.default_config module<a className="headerlink" href="#module-splitgraph.config.default_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.default_config.get_default_config_value">
+<code className="sig-prename descclassname">splitgraph.config.default_config.</code><code className="sig-name descname">get_default_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.config.default_config.get_default_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the hard-coded default value of a config key.
+Otherwise return default_return.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.environment_config">
+<span id="splitgraph-config-environment-config-module"></span><h2 id="splitgraphconfigenvironment_config-module">splitgraph.config.environment_config module<a className="headerlink" href="#module-splitgraph.config.environment_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.environment_config.get_environment_config_value">
+<code className="sig-prename descclassname">splitgraph.config.environment_config.</code><code className="sig-name descname">get_environment_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.environment_config.get_environment_config_value" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the environment variable value of the environment variable matching key.
+Otherwise return default_return.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.keys">
+<span id="splitgraph-config-keys-module"></span><h2 id="splitgraphconfigkeys-module">splitgraph.config.keys module<a className="headerlink" href="#module-splitgraph.config.keys" title="Permalink to this headline">¶</a></h2>
+<dl className="py data">
+<dt id="splitgraph.config.keys.SENSITIVE_KEY_SUFFIXES">
+<code className="sig-prename descclassname">splitgraph.config.keys.</code><code className="sig-name descname">SENSITIVE_KEY_SUFFIXES</code><em className="property"> = ['_PWD', '_TOKEN']</em><a className="headerlink" href="#splitgraph.config.keys.SENSITIVE_KEY_SUFFIXES" title="Permalink to this definition">¶</a></dt>
+<dd><p>Warning: Every key in DEFAULTS must have a key in ARGUMENT_KEY_MAP
+If you add/remove keys from DEFAULTS, make sure to do so here too.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.config.system_config">
+<span id="splitgraph-config-system-config-module"></span><h2 id="splitgraphconfigsystem_config-module">splitgraph.config.system_config module<a className="headerlink" href="#module-splitgraph.config.system_config" title="Permalink to this headline">¶</a></h2>
+<dl className="py function">
+<dt id="splitgraph.config.system_config.file_exists">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">file_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">_dir</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">filename</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.config.system_config.file_exists" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_config_file">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_config_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_config_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the location of an existing SG_CONFIG_FILE on the system with
+a valid name. Do not attempt to parse the config file, just return
+its location.</p>
+<p>Otherwise, return default_return</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_explicit_config_file_dirs">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_explicit_config_file_dirs</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_explicit_config_file_dirs" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get any explicitly defined config file directories,
+which are directories where we should search for files from
+VALID_CONFIG_FILE_NAMES.</p>
+<p>This list is defined similar to $PATH, as a colon (:) delimited
+string, either in:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-dirs</p></li>
+<li><p>or environment key SG_CONFIG_DIRS</p></li>
+</ul>
+</div></blockquote>
+<p>Or a single directory defined in either</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-dir</p></li>
+<li><p>environment key SG_CONFIG_DIR</p></li>
+</ul>
+</div></blockquote>
+<p>If both plural and single are defined, join them together.</p>
+<p>Return a list of valid paths that are set, or an empty list.</p>
+<p>Print a warning if any paths to not exist.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_explicit_config_file_location">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_explicit_config_file_location</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_explicit_config_file_location" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the explicitly defined location of config file, if defined.</p>
+<p>The location will either be defined in:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>argument flag –config-file</p></li>
+<li><p>or environment key SG_CONFIG_FILE</p></li>
+</ul>
+</div></blockquote>
+<p>In keeping with assumptions about priority, argument flag has
+higher priority than environment value.</p>
+<p>If the location is set, and points to an existing file, return location.</p>
+<p>Otherwise return None</p>
+<p>Print a warning if location is set but points to non-existing file.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.get_system_config_value">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">get_system_config_value</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">default_return</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.config.system_config.get_system_config_value" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.config.system_config.is_file">
+<code className="sig-prename descclassname">splitgraph.config.system_config.</code><code className="sig-name descname">is_file</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">filename</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.config.system_config.is_file" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.core.mdx b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.core.mdx
new file mode 100644
index 00000000..5f7f51fe
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.core.mdx
@@ -0,0 +1,1061 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.core package",
+  id: "splitgraph.core package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreengine-module">splitgraph.core.engine module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreimage-module">splitgraph.core.image module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreobject_manager-module">splitgraph.core.object_manager module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoreregistry-module">splitgraph.core.registry module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcorerepository-module">splitgraph.core.repository module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphcoretable-module">splitgraph.core.table module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.core">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.core" title="Permalink to this headline">¶</a></h2>
+<p>Core Splitgraph functionality: versioning and sharing tables.</p>
+<p>The main point of interaction with the Splitgraph API is a <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.repository.Repository</span></code></a> object
+representing a local or a remote Splitgraph repository. Repositories can be created using one of the
+following methods:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>Directly by invoking <cite>Repository(namespace, name, engine)</cite> where <cite>engine</cite> is the engine that the repository
+belongs to (that can be gotten with <cite>get_engine(engine_name)</cite>. If the created repository doesn’t actually exist
+on the engine, it must first be initialized with <cite>repository.init()</cite>.</p></li>
+<li><p>By using <a className="reference internal" href="#splitgraph.core.engine.lookup_repository" title="splitgraph.core.engine.lookup_repository"><code className="xref py py-func docutils literal notranslate"><span className="pre">splitgraph.core.engine.lookup_repository()</span></code></a> which will search for the repository on the current
+lookup path.</p></li>
+</ul>
+</div></blockquote>
+</div><div className="section" id="splitgraph-core-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.core.engine">
+<span id="splitgraph-core-engine-module"></span><h2 id="splitgraphcoreengine-module">splitgraph.core.engine module<a className="headerlink" href="#module-splitgraph.core.engine" title="Permalink to this headline">¶</a></h2>
+<p>Routines for managing Splitgraph engines, including looking up repositories and managing objects.</p>
+<dl className="py function">
+<dt id="splitgraph.core.engine.get_current_repositories">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">get_current_repositories</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Repository<span className="p">, </span>Optional<span className="p">[</span>Image<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.engine.get_current_repositories" title="Permalink to this definition">¶</a></dt>
+<dd><p>Lists all repositories currently in the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of (Repository object, current HEAD image)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.init_engine">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">init_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">skip_object_handling</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.engine.init_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes the engine by:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>performing any required engine-custom initialization</p></li>
+<li><p>creating the metadata tables</p></li>
+</ul>
+</div></blockquote>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>skip_object_handling</strong> – If True, skips installing routines related to
+object handling and checkouts (like audit triggers and CStore management).</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.lookup_repository">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">lookup_repository</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">include_local</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Repository<a className="headerlink" href="#splitgraph.core.engine.lookup_repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Queries the SG engines on the lookup path to locate one hosting the given repository.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>name</strong> – Repository name</p></li>
+<li><p><strong>include_local</strong> – If True, also queries the local engine</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Local or remote Repository object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.engine.repository_exists">
+<code className="sig-prename descclassname">splitgraph.core.engine.</code><code className="sig-name descname">repository_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.engine.repository_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks if a repository exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>repository</strong> – Repository object</p>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.image">
+<span id="splitgraph-core-image-module"></span><h2 id="splitgraphcoreimage-module">splitgraph.core.image module<a className="headerlink" href="#module-splitgraph.core.image" title="Permalink to this headline">¶</a></h2>
+<p>Image representation and provenance</p>
+<dl className="py class">
+<dt id="splitgraph.core.image.Image">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">Image</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">parent_id</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">created</span><span className="p">:</span> <span className="n">datetime.datetime</span></em>, <em className="sig-param"><span className="n">comment</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.image.Image" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">tuple</span></code></p>
+<p>Represents a Splitgraph image. Should’t be created directly, use Image-loading methods in the
+<a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.repository.Repository</span></code></a> class instead.</p>
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.checkout">
+<code className="sig-name descname">checkout</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">force</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">layered</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.checkout" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks the image out, changing the current HEAD pointer. Raises an error
+if there are pending changes to its checkout.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>force</strong> – Discards all pending changes to the schema.</p></li>
+<li><p><strong>layered</strong> – If True, uses layered querying to check out the image (doesn’t materialize tables
+inside of it).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.comment">
+<em className="property">property </em><code className="sig-name descname">comment</code><a className="headerlink" href="#splitgraph.core.image.Image.comment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 3</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.created">
+<em className="property">property </em><code className="sig-name descname">created</code><a className="headerlink" href="#splitgraph.core.image.Image.created" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 2</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.delete_tag">
+<code className="sig-name descname">delete_tag</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tag</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.delete_tag" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes a tag from an image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tag</strong> – Tag to delete.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.engine">
+<em className="property">property </em><code className="sig-name descname">engine</code><a className="headerlink" href="#splitgraph.core.image.Image.engine" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_log">
+<code className="sig-name descname">get_log</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_log" title="Permalink to this definition">¶</a></dt>
+<dd><p>Repeatedly gets the parent of a given image until it reaches the bottom.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_parent_children">
+<code className="sig-name descname">get_parent_children</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Tuple<span className="p">[</span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_parent_children" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets the parent and a list of children of a given image.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.image.Image.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the image’s objects (including those that might be
+shared with other images).</p>
+<p>This is calculated from the metadata, the on-disk footprint might be smaller if not all of image’s
+objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the image in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_table">
+<code className="sig-name descname">get_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.table.Table" title="splitgraph.core.table.Table">splitgraph.core.table.Table</a><a className="headerlink" href="#splitgraph.core.image.Image.get_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a Table object representing a version of a given table.
+Contains a list of objects that the table is linked to and the table’s schema.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>table_name</strong> – Name of the table</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Table object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_tables">
+<code className="sig-name descname">get_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.get_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets the names of all tables inside of an image.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.get_tags">
+<code className="sig-name descname">get_tags</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.image.Image.get_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Lists all tags that this image has.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.image_hash">
+<em className="property">property </em><code className="sig-name descname">image_hash</code><a className="headerlink" href="#splitgraph.core.image.Image.image_hash" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 0</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.object_engine">
+<em className="property">property </em><code className="sig-name descname">object_engine</code><a className="headerlink" href="#splitgraph.core.image.Image.object_engine" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.parent_id">
+<em className="property">property </em><code className="sig-name descname">parent_id</code><a className="headerlink" href="#splitgraph.core.image.Image.parent_id" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 1</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.provenance">
+<code className="sig-name descname">provenance</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reverse</span><span className="o">=</span><span className="default_value">False</span></em>, <em className="sig-param"><span className="n">engine</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.provenance" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inspects the image’s parent chain to come up with a set of repositories and their hashes
+that it was created from.</p>
+<p>If <cite>reverse</cite> is True, returns a list of images that were created _from_ this image. If
+this image is on a remote repository, <cite>engine</cite> can be passed in to override the engine
+used for the lookup of dependents.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>List of (repository, image_hash)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.provenance_data">
+<em className="property">property </em><code className="sig-name descname">provenance_data</code><a className="headerlink" href="#splitgraph.core.image.Image.provenance_data" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 4</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.query_schema">
+<code className="sig-name descname">query_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em>, <em className="sig-param"><span className="n">commit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.query_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a temporary schema with tables in this image mounted as foreign tables that can be accessed via
+read-only layered querying. On exit from the context manager, the schema is discarded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>The name of the schema the image is located in.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.repository">
+<em className="property">property </em><code className="sig-name descname">repository</code><a className="headerlink" href="#splitgraph.core.image.Image.repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Alias for field number 5</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.set_provenance">
+<code className="sig-name descname">set_provenance</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.set_provenance" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets the image’s provenance. Internal function called by the Splitfile interpreter, shouldn’t
+be called directly as it changes the image after it’s been created.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>provenance_data</strong> – List of parsed Splitfile commands and their data.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.tag">
+<code className="sig-name descname">tag</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tag</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.image.Image.tag" title="Permalink to this definition">¶</a></dt>
+<dd><p>Tags a given image. All tags are unique inside of a repository. If a tag already exists, it’s removed
+from the previous image and given to the new image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tag</strong> – Tag to set. ‘latest’ and ‘HEAD’ are reserved tags.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.image.Image.to_splitfile">
+<code className="sig-name descname">to_splitfile</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">ignore_irreproducible</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.to_splitfile" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreate the Splitfile that can be used to reconstruct this image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>ignore_irreproducible</strong> – If True, ignore commands from irreproducible Splitfile lines
+(like MOUNT or custom commands) and instead emit a comment (this results in an invalid Splitfile).</p></li>
+<li><p><strong>source_replacement</strong> – A dictionary of repositories and image hashes/tags specifying how to replace the
+dependencies of this Splitfile (table imports and FROM commands).</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of Splitfile commands that can be fed back into the executor.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.image.getrandbits">
+<code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.core.image.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.image.reconstruct_splitfile">
+<code className="sig-prename descclassname">splitgraph.core.image.</code><code className="sig-name descname">reconstruct_splitfile</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">provenance_data</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">ignore_irreproducible</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Repository<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.reconstruct_splitfile" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreate the Splitfile that can be used to reconstruct an image.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.object_manager">
+<span id="splitgraph-core-object-manager-module"></span><h2 id="splitgraphcoreobject_manager-module">splitgraph.core.object_manager module<a className="headerlink" href="#module-splitgraph.core.object_manager" title="Permalink to this headline">¶</a></h2>
+<p>Functions related to creating, deleting and keeping track of physical Splitgraph objects.</p>
+<dl className="py class">
+<dt id="splitgraph.core.object_manager.ObjectManager">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.object_manager.</code><code className="sig-name descname">ObjectManager</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">metadata_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>PostgresEngine<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.fragment_manager.FragmentManager</span></code></p>
+<p>Brings the multiple manager classes together and manages the object cache (downloading and uploading
+objects as required in order to fulfill certain queries)</p>
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.cleanup">
+<code className="sig-name descname">cleanup</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.cleanup" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes all objects in the object_tree not required by any current repository, including their dependencies and
+their remote locations. Also deletes all objects not registered in the object_tree.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects_to_fetch</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">object_locations</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Fetches the required objects from the remote and stores them locally.
+Does nothing for objects that already exist.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>source</strong> – Remote ObjectManager. If None, will only try to download objects from the external location.</p></li>
+<li><p><strong>objects_to_fetch</strong> – List of object IDs to download.</p></li>
+<li><p><strong>object_locations</strong> – List of custom object locations, encoded as tuples (object_id, object_url, protocol).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.ensure_objects">
+<code className="sig-name descname">ensure_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Table<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">defer_release</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">tracer</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>splitgraph.core.common.Tracer<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">upstream_manager</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">ObjectManager</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Tuple<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>splitgraph.core.common.CallbackList<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.ensure_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Resolves the objects needed to materialize a given table and makes sure they are in the local
+splitgraph_meta schema.</p>
+<p>Whilst inside this manager, the objects are guaranteed to exist. On exit from it, the objects are marked as
+unneeded and can be garbage collected.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table</strong> – Table to materialize</p></li>
+<li><p><strong>objects</strong> – List of objects to download: one of table or objects must be specified.</p></li>
+<li><p><strong>quals</strong> – Optional list of qualifiers to be passed to the fragment engine. Fragments that definitely do
+not match these qualifiers will be dropped. See the docstring for <cite>filter_fragments</cite> for the format.</p></li>
+<li><p><strong>defer_release</strong> – If True, won’t release the objects on exit.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If defer_release is True: List of table fragments and a callback that the caller must call
+when the objects are no longer needed. If defer_release is False: just the list of table fragments.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_cache_occupancy">
+<code className="sig-name descname">get_cache_occupancy</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_cache_occupancy" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Space occupied by objects cached from external locations, in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_downloaded_objects">
+<code className="sig-name descname">get_downloaded_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">limit_to</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_downloaded_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets a list of objects currently in the Splitgraph cache (i.e. not only existing externally.)</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>limit_to</strong> – If specified, only the objects in this list will be returned.</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Set of object IDs.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.get_total_object_size">
+<code className="sig-name descname">get_total_object_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.get_total_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Space occupied by all objects on the engine, in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.make_objects_external">
+<code className="sig-name descname">make_objects_external</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.make_objects_external" title="Permalink to this definition">¶</a></dt>
+<dd><p>Uploads local objects to an external location and marks them as being cached locally (thus making it possible
+to evict or swap them out).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – Object IDs to upload. Will do nothing for objects that already exist externally.</p></li>
+<li><p><strong>handler</strong> – Object handler</p></li>
+<li><p><strong>handler_params</strong> – Extra handler parameters</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.run_eviction">
+<code className="sig-name descname">run_eviction</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">keep_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">required_space</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.run_eviction" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete enough objects with zero reference count (only those, since we guarantee that whilst refcount is >0,
+the object stays alive) to free at least <cite>required_space</cite> in the cache.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>keep_objects</strong> – List of objects (besides those with nonzero refcount) that can’t be deleted.</p></li>
+<li><p><strong>required_space</strong> – Space, in bytes, to free. If the routine can’t free at least this much space,
+it shall raise an exception. If None, removes all eligible objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.object_manager.ObjectManager.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">target</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a></span></em>, <em className="sig-param"><span className="n">objects_to_push</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Uploads physical objects to the remote or some other external location.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>target</strong> – Target ObjectManager</p></li>
+<li><p><strong>objects_to_push</strong> – List of object IDs to upload.</p></li>
+<li><p><strong>handler</strong> – Name of the handler to use to upload objects. Use <cite>DB</cite> to push them to the remote, <cite>FILE</cite>
+to store them in a directory that can be accessed from the client and <cite>HTTP</cite> to upload them to HTTP.</p></li>
+<li><p><strong>handler_params</strong> – For <cite>HTTP</cite>, a dictionary <cite>&#38;lbrace;“username”: username, “password”, password&#38;rbrace;</cite>. For <cite>FILE</cite>,
+a dictionary <cite>&#38;lbrace;“path”: path&#38;rbrace;</cite> specifying the directory where the objects shall be saved.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of (object_id, url) that specifies all objects were uploaded (skipping objects that
+already exist on the remote).</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.registry">
+<span id="splitgraph-core-registry-module"></span><h2 id="splitgraphcoreregistry-module">splitgraph.core.registry module<a className="headerlink" href="#module-splitgraph.core.registry" title="Permalink to this headline">¶</a></h2>
+<p>Functions for communicating with the remote Splitgraph catalog</p>
+<dl className="py function">
+<dt id="splitgraph.core.registry.get_info_key">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">get_info_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.registry.get_info_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets a configuration key from the remote registry, used to notify the client of the registry’s capabilities.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – Engine</p></li>
+<li><p><strong>key</strong> – Key to get</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.registry.set_info_key">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">set_info_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">key</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">value</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bool<span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.registry.set_info_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets a configuration value on the remote registry.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>engine</strong> – Engine</p></li>
+<li><p><strong>key</strong> – Key to set</p></li>
+<li><p><strong>value</strong> – New value for the key</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.registry.setup_registry_mode">
+<code className="sig-prename descclassname">splitgraph.core.registry.</code><code className="sig-name descname">setup_registry_mode</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.registry.setup_registry_mode" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set up access policies/RLS:</p>
+<ul className="simple">
+<li><p>Normal users aren’t allowed to create tables/schemata (can’t do checkouts inside of a registry or
+upload SG objects directly to it)</p></li>
+<li><p>Normal users can’t access the splitgraph_meta schema directly: they’re only supposed to be able to
+talk to it via stored procedures in splitgraph_api. Those procedures are set up with SECURITY INVOKER
+(run with those users’ credentials) and what they can access is further restricted by RLS:</p>
+<ul>
+<li><p>images/tables/tags meta tables: can only create/update/delete records where the namespace = user ID</p></li>
+<li><p>objects/object_location tables: same. An object (piece of data) becomes owned by the user that creates
+it and still remains so even if someone else’s image starts using it. Hence, the original owner can delete
+or change it (since they control the external location they’ve uploaded it to anyway).</p></li>
+</ul>
+</li>
+</ul>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.repository">
+<span id="splitgraph-core-repository-module"></span><h2 id="splitgraphcorerepository-module">splitgraph.core.repository module<a className="headerlink" href="#module-splitgraph.core.repository" title="Permalink to this headline">¶</a></h2>
+<p>Public API for managing images in a Splitgraph repository.</p>
+<dl className="py class">
+<dt id="splitgraph.core.repository.Repository">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">Repository</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">namespace</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_manager</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.repository.Repository" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Splitgraph repository API</p>
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">comment</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">snap_only</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">chunk_size</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">split_changeset</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">extra_indexes</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">in_fragment_order</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><a className="headerlink" href="#splitgraph.core.repository.Repository.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commits all pending changes to a given repository, creating a new image.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>image_hash</strong> – Hash of the commit. Chosen by random if unspecified.</p></li>
+<li><p><strong>comment</strong> – Optional comment to add to the commit.</p></li>
+<li><p><strong>snap_only</strong> – If True, will store the table as a full snapshot instead of delta compression</p></li>
+<li><p><strong>chunk_size</strong> – For tables that are stored as snapshots (new tables and where <cite>snap_only</cite> has been passed,
+the table will be split into fragments of this many rows.</p></li>
+<li><p><strong>split_changeset</strong> – If True, splits the changeset into multiple fragments based on
+the PK regions spanned by the current table fragments. For example, if the original table
+consists of 2 fragments, first spanning rows 1-10000, second spanning rows 10001-20000 and the
+change alters rows 1, 10001 and inserts a row with PK 20001, this will record the change as
+3 fragments: one inheriting from the first original fragment, one inheriting from the second
+and a brand new fragment. This increases the number of fragments in total but means that fewer rows
+will need to be scanned to satisfy a query.
+If False, the changeset will be stored as a single fragment inheriting from the last fragment in the
+table.</p></li>
+<li><p><strong>extra_indexes</strong> – Dictionary of &#38;lbrace;table: index_type: column: index_specific_kwargs&#38;rbrace;.</p></li>
+<li><p><strong>in_fragment_order</strong> – Dictionary of &#38;lbrace;table: list of columns&#38;rbrace;. If specified, will</p></li>
+</ul>
+</dd>
+</dl>
+<p>sort the data inside each chunk by this/these key(s) for each table.
+:param overwrite: If an object already exists, will force recreate it.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>The newly created Image object.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.commit_engines">
+<code className="sig-name descname">commit_engines</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.commit_engines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the underlying transactions on both engines that the repository uses.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.delete">
+<code className="sig-name descname">delete</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">unregister</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em>, <em className="sig-param"><span className="n">uncheckout</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.delete" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discards all changes to a given repository and optionally all of its history,
+as well as deleting the Postgres schema that it might be checked out into.
+Doesn’t delete any cached physical objects.</p>
+<p>After performing this operation, this object becomes invalid and must be discarded,
+unless init() is called again.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>unregister</strong> – Whether to purge repository history/metadata</p></li>
+<li><p><strong>uncheckout</strong> – Whether to delete the actual checked out repo. This has no effect
+if the repository is backed by a registry (rather than a local engine).</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.diff">
+<code className="sig-name descname">diff</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image_1</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">image_2</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>Union<span className="p">[</span>bool<span className="p">, </span>Tuple<span className="p">[</span>int<span className="p">, </span>int<span className="p">, </span>int<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Tuple<span className="p">[</span>bool<span className="p">, </span>Tuple<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.diff" title="Permalink to this definition">¶</a></dt>
+<dd><p>Compares the state of a table in different images by materializing both tables into a temporary space
+and comparing them row-to-row.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table_name</strong> – Name of the table.</p></li>
+<li><p><strong>image_1</strong> – First image hash / object. If None, uses the state of the current staging area.</p></li>
+<li><p><strong>image_2</strong> – Second image hash / object. If None, uses the state of the current staging area.</p></li>
+<li><p><strong>aggregate</strong> – If True, returns a tuple of integers denoting added, removed and updated rows between
+the two images.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If the table doesn’t exist in one of the images, returns True if it was added and False if it was
+removed. If <cite>aggregate</cite> is True, returns the aggregation of changes as specified before.
+Otherwise, returns a list of changes where each change is a tuple of
+<cite>(True for added, False for removed, row contents)</cite>.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.dump">
+<code className="sig-name descname">dump</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">exclude_object_contents</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.dump" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates an SQL dump with the metadata required for the repository and all of its objects.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>stream</strong> – Stream to dump the data into.</p></li>
+<li><p><strong>exclude_object_contents</strong> – Only dump the metadata but not the actual object contents.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.from_schema">
+<em className="property">classmethod </em><code className="sig-name descname">from_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.from_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Convert a Postgres schema name of the format <cite>namespace/repository</cite> to a Splitgraph repository object.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.from_template">
+<em className="property">classmethod </em><code className="sig-name descname">from_template</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">template</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">namespace</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.from_template" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a Repository from an existing one replacing some of its attributes.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_all_hashes_tags">
+<code className="sig-name descname">get_all_hashes_tags</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.get_all_hashes_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Gets all tagged images and their hashes in a given repository.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>List of (image_hash, tag)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_local_size">
+<code className="sig-name descname">get_local_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.repository.Repository.get_local_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the actual size used by this repository’s downloaded objects.</p>
+<p>This might still be double-counted if the repository shares objects
+with other repositores.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the repository in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.repository.Repository.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the repository’s data, counting objects that are used
+by multiple images only once. This is calculated from the metadata, the on-disk
+footprint might be smaller if not all of repository’s objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the repository in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.repository.Repository.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Detects if the repository has any pending changes (schema changes, table additions/deletions, content changes).</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.head">
+<em className="property">property </em><code className="sig-name descname">head</code><a className="headerlink" href="#splitgraph.core.repository.Repository.head" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the HEAD image for the repository or None if the repository isn’t checked out.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.head_strict">
+<em className="property">property </em><code className="sig-name descname">head_strict</code><a className="headerlink" href="#splitgraph.core.repository.Repository.head_strict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the HEAD image for the repository. Raise an exception if the repository
+isn’t checked out.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.import_tables">
+<code className="sig-name descname">import_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">source_tables</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">foreign_tables</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">do_checkout</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">table_queries</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>bool<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">parent_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em>, <em className="sig-param"><span className="n">skip_validation</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.core.repository.Repository.import_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a new commit in target_repository with one or more tables linked to already-existing tables.
+After this operation, the HEAD of the target repository moves to the new commit and the new tables are
+materialized.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>tables</strong> – If not empty, must be the list of the same length as <cite>source_tables</cite> specifying names to store
+them under in the target repository.</p></li>
+<li><p><strong>source_repository</strong> – Repository to import tables from.</p></li>
+<li><p><strong>source_tables</strong> – List of tables to import. If empty, imports all tables.</p></li>
+<li><p><strong>image_hash</strong> – Image hash in the source repository to import tables from.
+Uses the current source HEAD by default.</p></li>
+<li><p><strong>foreign_tables</strong> – If True, copies all source tables to create a series of new snapshots instead of
+treating them as Splitgraph-versioned tables. This is useful for adding brand new tables
+(for example, from an FDW-mounted table).</p></li>
+<li><p><strong>do_checkout</strong> – If False, doesn’t check out the newly created image.</p></li>
+<li><p><strong>target_hash</strong> – Hash of the new image that tables is recorded under. If None, gets chosen at random.</p></li>
+<li><p><strong>table_queries</strong> – If not [], it’s treated as a Boolean mask showing which entries in the <cite>tables</cite> list are
+instead SELECT SQL queries that form the target table. The queries have to be non-schema qualified and work
+only against tables in the source repository. Each target table created is the result of the respective SQL
+query. This is committed as a new snapshot.</p></li>
+<li><p><strong>parent_hash</strong> – If not None, must be the hash of the image to base the new image on.
+Existing tables from the parent image are preserved in the new image. If None, the current repository
+HEAD is used.</p></li>
+<li><p><strong>wrapper</strong> – Override the default class for the layered querying foreign data wrapper.</p></li>
+<li><p><strong>skip_validation</strong> – Don’t validate SQL used in import statements (used by the Splitfile executor that pre-formats the SQL).</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Hash that the new image was stored under.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.init">
+<code className="sig-name descname">init</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.init" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes an empty repo with an initial commit (hash 0000…)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.materialized_table">
+<code className="sig-name descname">materialized_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.repository.Repository.materialized_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>A context manager that returns a pointer to a read-only materialized table in a given image.
+The table is deleted on exit from the context manager.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>table_name</strong> – Name of the table</p></li>
+<li><p><strong>image_hash</strong> – Image hash to materialize</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>(schema, table_name) where the materialized table is located.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.pull">
+<code className="sig-name descname">pull</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.pull" title="Permalink to this definition">¶</a></dt>
+<dd><p>Synchronizes the state of the local Splitgraph repository with its upstream, optionally downloading all new
+objects created on the remote.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>download_all</strong> – If True, downloads all objects and stores them locally. Otherwise, will only download
+required objects when a table is checked out.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the local repository for existing objects.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags.</p></li>
+<li><p><strong>single_image</strong> – Limit the download to a single image hash/tag.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.push">
+<code className="sig-name descname">push</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">reupload_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.push" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inverse of <code className="docutils literal notranslate"><span className="pre">pull</span></code>: Pushes all local changes to the remote and uploads new objects.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote repository to push changes to. If not specified, the current
+upstream is used.</p></li>
+<li><p><strong>handler</strong> – Name of the handler to use to upload objects. Use <cite>DB</cite> to push them to the remote or <cite>S3</cite>
+to store them in an S3 bucket.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the remote repository for existing objects.</p></li>
+<li><p><strong>reupload_objects</strong> – If True, will reupload objects for which metadata is uploaded.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags on the remote repository.</p></li>
+<li><p><strong>handler_options</strong> – Extra options to pass to the handler. For example, see
+<a className="reference internal" href="splitgraph.hooks/#splitgraph.hooks.s3.S3ExternalObjectHandler" title="splitgraph.hooks.s3.S3ExternalObjectHandler"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.hooks.s3.S3ExternalObjectHandler</span></code></a>.</p></li>
+<li><p><strong>single_image</strong> – Limit the upload to a single image hash/tag.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.rollback_engines">
+<code className="sig-name descname">rollback_engines</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.rollback_engines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the underlying transactions on both engines that the repository uses.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">sql: Union[psycopg2.sql.Composed, str], arguments: Optional[Any] = None, return_shape: splitgraph.engine.ResultShape = &lt;ResultShape.MANY_MANY: 4></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.core.repository.Repository.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute an arbitrary SQL statement inside of this repository’s checked out schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.set_tags">
+<code className="sig-name descname">set_tags</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tags</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.set_tags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Sets tags for multiple images.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tags</strong> – List of (image_hash, tag)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.to_schema">
+<code className="sig-name descname">to_schema</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.core.repository.Repository.to_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the engine schema that this repository gets checked out into.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.uncheckout">
+<code className="sig-name descname">uncheckout</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">force</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.Repository.uncheckout" title="Permalink to this definition">¶</a></dt>
+<dd><p>Deletes the schema that the repository is checked out into</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>force</strong> – Discards all pending changes to the schema.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.repository.Repository.upstream">
+<em className="property">property </em><code className="sig-name descname">upstream</code><a className="headerlink" href="#splitgraph.core.repository.Repository.upstream" title="Permalink to this definition">¶</a></dt>
+<dd><p>The remote upstream repository that this local repository tracks.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.clone">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">clone</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">local_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.clone" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clones a remote Splitgraph repository or synchronizes remote changes with the local ones.</p>
+<p>If the target repository has no set upstream engine, the source repository becomes its upstream.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote Repository object to clone or the repository’s name. If a name is passed,
+the repository will be looked up on the current lookup path in order to find the engine the repository
+belongs to.</p></li>
+<li><p><strong>local_repository</strong> – Local repository to clone into. If None, uses the same name as the remote.</p></li>
+<li><p><strong>download_all</strong> – If True, downloads all objects and stores them locally. Otherwise, will only download required
+objects when a table is checked out.</p></li>
+<li><p><strong>overwrite_objects</strong> – If True, will overwrite object metadata on the local repository for existing objects.</p></li>
+<li><p><strong>overwrite_tags</strong> – If True, will overwrite existing tags.</p></li>
+<li><p><strong>single_image</strong> – If set, only get a single image with this hash/tag from the source.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A locally cloned Repository object.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.getrandbits">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.core.repository.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.import_table_from_remote">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">import_table_from_remote</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">remote_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">target_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.import_table_from_remote" title="Permalink to this definition">¶</a></dt>
+<dd><p>Shorthand for importing one or more tables from a yet-uncloned remote. Here, the remote image hash is required,
+as otherwise we aren’t necessarily able to determine what the remote head is.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_repository</strong> – Remote Repository object</p></li>
+<li><p><strong>remote_tables</strong> – List of remote tables to import</p></li>
+<li><p><strong>remote_image_hash</strong> – Image hash to import the tables from</p></li>
+<li><p><strong>target_repository</strong> – Target repository to import the tables to</p></li>
+<li><p><strong>target_tables</strong> – Target table aliases</p></li>
+<li><p><strong>target_hash</strong> – Hash of the image that’s created with the import. Default random.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.repository.table_exists_at">
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">table_exists_at</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.core.repository.table_exists_at" title="Permalink to this definition">¶</a></dt>
+<dd><p>Determines whether a given table exists in a Splitgraph image without checking it out. If <cite>image_hash</cite> is None,
+determines whether the table exists in the current staging area.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.core.table">
+<span id="splitgraph-core-table-module"></span><h2 id="splitgraphcoretable-module">splitgraph.core.table module<a className="headerlink" href="#module-splitgraph.core.table" title="Permalink to this headline">¶</a></h2>
+<p>Table metadata-related classes.</p>
+<dl className="py class">
+<dt id="splitgraph.core.table.QueryPlan">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">QueryPlan</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.table.Table" title="splitgraph.core.table.Table">splitgraph.core.table.Table</a></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.QueryPlan" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Represents the initial query plan (fragments to query) for given columns and
+qualifiers.</p>
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.core.table.Table">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">Table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span><span className="p">:</span> <span className="n">Repository</span></em>, <em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n">Image</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_schema</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.Table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Represents a Splitgraph table in a given image. Shouldn’t be created directly, use Table-loading
+methods in the <a className="reference internal" href="#splitgraph.core.image.Image" title="splitgraph.core.image.Image"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.core.image.Image</span></code></a> class instead.</p>
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_length">
+<code className="sig-name descname">get_length</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.table.Table.get_length" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the number of rows in this table.</p>
+<p>This might be smaller than the total number of rows in all objects belonging to this
+table as some objects might overwrite each other.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Number of rows in table</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_query_plan">
+<code className="sig-name descname">get_query_plan</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">use_cache</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.table.QueryPlan" title="splitgraph.core.table.QueryPlan">splitgraph.core.table.QueryPlan</a><a className="headerlink" href="#splitgraph.core.table.Table.get_query_plan" title="Permalink to this definition">¶</a></dt>
+<dd><p>Start planning a query (preliminary steps before object downloading,
+like qualifier filtering).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>quals</strong> – Qualifiers in CNF form</p></li>
+<li><p><strong>columns</strong> – List of columns</p></li>
+<li><p><strong>use_cache</strong> – If True, will fetch the plan from the cache for the same qualifiers and columns.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>QueryPlan</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.get_size">
+<code className="sig-name descname">get_size</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.core.table.Table.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the physical size used by the table’s objects (including those shared with other tables).</p>
+<p>This is calculated from the metadata, the on-disk footprint might be smaller if not all of table’s
+objects have been downloaded.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>Size of the table in bytes.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.materialize">
+<code className="sig-name descname">materialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">destination</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">destination_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">lq_server</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.table.Table.materialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Materializes a Splitgraph table in the target schema as a normal Postgres table, potentially downloading all
+required objects and using them to reconstruct the table.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>destination</strong> – Name of the destination table.</p></li>
+<li><p><strong>destination_schema</strong> – Name of the destination schema.</p></li>
+<li><p><strong>lq_server</strong> – If set, sets up a layered querying FDW for the table instead using this foreign server.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query">
+<code className="sig-name descname">query</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.Table.query" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it.</p>
+<p>This is a wrapper around query_lazy() that force evaluates the results which
+might mean more fragments being materialized that aren’t needed.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of dictionaries of results</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query_indirect">
+<code className="sig-name descname">query_indirect</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Tuple<span className="p">[</span>Iterator<span className="p">[</span>bytes<span className="p">]</span><span className="p">, </span>Callable<span className="p">, </span><a className="reference internal" href="#splitgraph.core.table.QueryPlan" title="splitgraph.core.table.QueryPlan">splitgraph.core.table.QueryPlan</a><span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.query_indirect" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it. Instead of
+actual results, this returns a generator of SQL queries that the caller can use
+to get the results as well as a callback that the caller has to run after they’re
+done consuming the results.</p>
+<p>In particular, the query generator will prefer returning direct queries to
+Splitgraph objects and only when those are exhausted will it start materializing
+delta-compressed fragments.</p>
+<p>This is an advanced method: you probably want to call table.query().</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Generator of queries (bytes), a callback and a query plan object (containing stats
+that are fully populated after the callback has been called to end the query).</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.query_lazy">
+<code className="sig-name descname">query_lazy</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">quals</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>Iterator<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.query_lazy" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a read-only query against this table without materializing it.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>columns</strong> – List of columns from this table to fetch</p></li>
+<li><p><strong>quals</strong> – List of qualifiers in conjunctive normal form. See the documentation for
+FragmentManager.filter_fragments for the actual format.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Generator of dictionaries of results.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.core.table.Table.reindex">
+<code className="sig-name descname">reindex</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">extra_indexes</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">raise_on_patch_objects</span><span className="o">=</span><span className="default_value">True</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.table.Table.reindex" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run extra indexes on all objects in this table and update their metadata.
+This only works on objects that don’t have any deletions or upserts (have a deletion hash of 000000…).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>extra_indexes</strong> – Dictionary of &#38;lbrace;index_type: column: index_specific_kwargs&#38;rbrace;.</p></li>
+<li><p><strong>raise_on_patch_objects</strong> – If True, will raise an exception if any objects in the table
+overwrite any other objects. If False, will log a warning but will reindex all non-patch objects.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:returns List of objects that were reindexed.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.core.table.merge_index_data">
+<code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">merge_index_data</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">current_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">new_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.merge_index_data" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.engine.mdx b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.engine.mdx
new file mode 100644
index 00000000..1d4e86c9
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.engine.mdx
@@ -0,0 +1,565 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.engine package",
+  id: "splitgraph.engine package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#subpackages">Subpackages</a></li></ol></nav><div className="section" id="module-splitgraph.engine">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.engine" title="Permalink to this headline">¶</a></h2>
+<p>Defines the interface for a Splitgraph engine (a backing database), including running basic SQL commands,
+tracking tables for changes and uploading/downloading tables to other remote engines.</p>
+<p>By default, Splitgraph is backed by Postgres: see <a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres" title="splitgraph.engine.postgres"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.engine.postgres</span></code></a> for an example of how to
+implement a different engine.</p>
+<dl className="py class">
+<dt id="splitgraph.engine.ChangeEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ChangeEngine</code><a className="headerlink" href="#splitgraph.engine.ChangeEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.SQLEngine" title="splitgraph.engine.SQLEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.SQLEngine</span></code></a>, <code className="xref py py-class docutils literal notranslate"><span className="pre">abc.ABC</span></code></p>
+<p>An SQL engine that can perform change tracking on a set of tables.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.discard_pending_changes">
+<code className="sig-name descname">discard_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.discard_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discard recorded pending changes for a tracked table or the whole schema</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_change_key">
+<code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the key used to identify a row in a change (list of column name, column type).
+If the tracked table has a PK, we use that; if it doesn’t, the whole row is used.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_changed_tables">
+<code className="sig-name descname">get_changed_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_changed_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>List tracked tables that have pending changes</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>schema</strong> – Schema to check for changes</p>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of tables with changed contents</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_pending_changes">
+<code className="sig-name descname">get_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="o">=</span><span className="default_value">False</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return pending changes for a given tracked table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema the table belongs to</p></li>
+<li><p><strong>table</strong> – Table to return changes for</p></li>
+<li><p><strong>aggregate</strong> – Whether to aggregate changes or return them completely</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If aggregate is True: tuple with numbers of <cite>(added_rows, removed_rows, updated_rows)</cite>.
+If aggregate is False: A changeset. The changeset is a list of
+<cite>(pk, action (0 for Insert, 1 for Delete, 2 for Update), action_data)</cite>
+where <cite>action_data</cite> is <cite>None</cite> for Delete and <cite>&#38;lbrace;‘c’: [column_names], ‘v’: [column_values]&#38;rbrace;</cite> that
+have been inserted/updated otherwise.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.get_tracked_tables">
+<code className="sig-name descname">get_tracked_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.get_tracked_tables" title="Permalink to this definition">¶</a></dt>
+<dd><dl className="field-list simple">
+<dt className="field-odd">Returns</dt>
+<dd className="field-odd"><p>A list of (table_schema, table_name) that the engine currently tracks for changes</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return True if the tracked schema has pending changes and False if it doesn’t.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.track_tables">
+<code className="sig-name descname">track_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.track_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Start engine-specific change tracking on a list of tables.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tables</strong> – List of (table_schema, table_name) to start tracking</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ChangeEngine.untrack_tables">
+<code className="sig-name descname">untrack_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ChangeEngine.untrack_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stop engine-specific change tracking on a list of tables and delete any pending changes.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>tables</strong> – List of (table_schema, table_name) to start tracking</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.ObjectEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ObjectEngine</code><a className="headerlink" href="#splitgraph.engine.ObjectEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Routines for storing/applying objects as well as sharing them with other engines.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.apply_fragments">
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">target_schema</span></em>, <em className="sig-param"><span className="n">target_table</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_schema, object_table)</cite> that the objects are stored in.</p></li>
+<li><p><strong>target_schema</strong> – Schema to apply the fragment to</p></li>
+<li><p><strong>target_table</strong> – Table to apply the fragment to</p></li>
+<li><p><strong>extra_quals</strong> – Optional, extra SQL (Composable) clauses to filter new rows in the fragment on
+(e.g. SQL(“a = %s”))</p></li>
+<li><p><strong>extra_qual_args</strong> – Optional, a tuple of arguments to use with <cite>extra_quals</cite></p></li>
+<li><p><strong>schema_spec</strong> – Optional, list of (ordinal, column_name, column_type, is_pk).
+If not specified, uses the schema of target_table.</p></li>
+<li><p><strong>progress_every</strong> – If set, will report the materialization progress via
+tqdm every <cite>progress_every</cite> objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.delete_objects">
+<code className="sig-name descname">delete_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.delete_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete one or more objects from the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_ids</strong> – IDs of objects to delete</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">remote_engine</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the remote engine to the local cache</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to download</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to download the objects from.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:return List of object IDs that were downloaded.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.dump_object">
+<code className="sig-name descname">dump_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em>, <em className="sig-param"><span className="n">stream</span></em>, <em className="sig-param"><span className="n">schema</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.dump_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump an object into a series of SQL statements</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Object ID</p></li>
+<li><p><strong>stream</strong> – Text stream to dump the object into</p></li>
+<li><p><strong>schema</strong> – Schema the object lives in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.get_object_schema">
+<code className="sig-name descname">get_object_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.get_object_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the schema of a given object, returned as a list of
+(ordinal, column_name, column_type, is_pk).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_id</strong> – ID of the object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.get_object_size">
+<code className="sig-name descname">get_object_size</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.get_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the on-disk footprint of this object, in bytes
+:param object_id: ID of the object</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.store_fragment">
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span></em>, <em className="sig-param"><span className="n">deleted</span></em>, <em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">source_schema</span></em>, <em className="sig-param"><span className="n">source_table</span></em>, <em className="sig-param"><span className="n">source_schema_spec</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Store a fragment of a changed table in another table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>inserted</strong> – List of PKs that have been updated/inserted</p></li>
+<li><p><strong>deleted</strong> – List of PKs that have been deleted</p></li>
+<li><p><strong>schema</strong> – Schema to store the change in</p></li>
+<li><p><strong>table</strong> – Table to store the change in</p></li>
+<li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
+<li><p><strong>source_table</strong> – Name of the source table</p></li>
+<li><p><strong>source_schema_spec</strong> – Schema of the source table (optional)</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.store_object">
+<code className="sig-name descname">store_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_query</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bytes<span className="p">, </span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">, </span>psycopg2.sql.SQL<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_query_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Sequence<span className="p">[</span>Any<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stores a Splitgraph object using a source query in the actual format
+implemented by this engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>source_query</strong> – SELECT query that produces data required by the object</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the source table</p></li>
+<li><p><strong>source_query_args</strong> – Arguments to mogrify into the source query.</p></li>
+<li><p><strong>overwrite</strong> – If True, will overwrite the object if it already exists.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.ObjectEngine.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span></em>, <em className="sig-param"><span className="n">remote_engine</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the local cache to the remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to upload the objects to.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.ResultShape">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">ResultShape</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">value</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ResultShape" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">enum.Enum</span></code></p>
+<p>Shape that the result of a query will be coerced to</p>
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.MANY_MANY">
+<code className="sig-name descname">MANY_MANY</code><em className="property"> = 4</em><a className="headerlink" href="#splitgraph.engine.ResultShape.MANY_MANY" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.MANY_ONE">
+<code className="sig-name descname">MANY_ONE</code><em className="property"> = 3</em><a className="headerlink" href="#splitgraph.engine.ResultShape.MANY_ONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.NONE">
+<code className="sig-name descname">NONE</code><em className="property"> = 0</em><a className="headerlink" href="#splitgraph.engine.ResultShape.NONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.ONE_MANY">
+<code className="sig-name descname">ONE_MANY</code><em className="property"> = 2</em><a className="headerlink" href="#splitgraph.engine.ResultShape.ONE_MANY" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py attribute">
+<dt id="splitgraph.engine.ResultShape.ONE_ONE">
+<code className="sig-name descname">ONE_ONE</code><em className="property"> = 1</em><a className="headerlink" href="#splitgraph.engine.ResultShape.ONE_ONE" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.SQLEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">SQLEngine</code><a className="headerlink" href="#splitgraph.engine.SQLEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">abc.ABC</span></code></p>
+<p>Abstraction for a Splitgraph SQL backend. Requires any overriding classes to implement <cite>run_sql</cite> as well as
+a few other functions. Together with the <cite>information_schema</cite> (part of the SQL standard), this class uses those
+functions to implement some basic database management methods like listing, deleting, creating, dumping
+and loading tables.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.close">
+<code className="sig-name descname">close</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.close" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit and close the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.copy_table">
+<code className="sig-name descname">copy_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">with_pk_constraints</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.copy_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Copy a table in the same engine, optionally applying primary key constraints as well.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.create_schema">
+<code className="sig-name descname">create_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.create_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a schema if it doesn’t exist</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.create_table">
+<code className="sig-name descname">create_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">unlogged</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">include_comments</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.create_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a table using a previously-dumped table schema spec</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Table name to create</p></li>
+<li><p><strong>schema_spec</strong> – TableSchema</p></li>
+<li><p><strong>unlogged</strong> – If True, the table won’t be reflected in the WAL or scanned by the analyzer/autovacuum.</p></li>
+<li><p><strong>temporary</strong> – If True, a temporary table is created (the schema parameter is ignored)</p></li>
+<li><p><strong>include_comments</strong> – If True, also adds COMMENT statements for columns that have them.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.delete_schema">
+<code className="sig-name descname">delete_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.delete_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete a schema if it exists, including all the tables in it.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.delete_table">
+<code className="sig-name descname">delete_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.SQLEngine.delete_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Drop a table from a schema if it exists</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.dump_table_creation">
+<em className="property">static </em><code className="sig-name descname">dump_table_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">unlogged</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">include_comments</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Tuple<span className="p">[</span>psycopg2.sql.Composed<span className="p">, </span>Tuple<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.dump_table_creation" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dumps the DDL for a table using a previously-dumped table schema spec</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Table name to create</p></li>
+<li><p><strong>schema_spec</strong> – TableSchema</p></li>
+<li><p><strong>unlogged</strong> – If True, the table won’t be reflected in the WAL or scanned by the analyzer/autovacuum.</p></li>
+<li><p><strong>temporary</strong> – If True, a temporary table is created (the schema parameter is ignored)</p></li>
+<li><p><strong>include_comments</strong> – If True, also adds COMMENT statements for columns that have them.</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>An SQL statement that reconstructs the table schema + args to be mogrified into it.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.dump_table_sql">
+<code className="sig-name descname">dump_table_sql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table_name</span></em>, <em className="sig-param"><span className="n">stream</span></em>, <em className="sig-param"><span className="n">columns</span><span className="o">=</span><span className="default_value">'*'</span></em>, <em className="sig-param"><span className="n">where</span><span className="o">=</span><span className="default_value">''</span></em>, <em className="sig-param"><span className="n">where_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.dump_table_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump the table contents in the SQL format
+:param schema: Schema the table is located in
+:param table_name: Name of the table
+:param stream: A file-like object to write the result into.
+:param columns: SQL column spec. Default ‘*’.
+:param where: Optional, an SQL WHERE clause
+:param where_args: Arguments for the optional WHERE clause.
+:param target_schema: Schema to create the table in (default same as <cite>schema</cite>)
+:param target_table: Name of the table to insert data into (default same as <cite>table_name</cite>)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_all_tables">
+<code className="sig-name descname">get_all_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_all_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get all tables in a given schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_full_table_schema">
+<code className="sig-name descname">get_full_table_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_full_table_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Generates a list of (column ordinal, name, data type, is_pk, column comment),
+used to detect schema changes like columns being dropped/added/renamed or type changes.</p>
+<p>NB this doesn’t work for temporary tables (pg_temp) and returns an empty schema.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_primary_keys">
+<code className="sig-name descname">get_primary_keys</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_primary_keys" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a list of (column_name, column_type) denoting the primary keys of a given table.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.get_table_type">
+<code className="sig-name descname">get_table_type</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Optional<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.get_table_type" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the type of the table (BASE or FOREIGN)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.initialize">
+<code className="sig-name descname">initialize</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.initialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Does any required initialization of the engine</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.lock_table">
+<code className="sig-name descname">lock_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.lock_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Acquire an exclusive lock on a given table, released when the transaction commits / rolls back.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.rollback">
+<code className="sig-name descname">rollback</code><span className="sig-paren">(</span><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.rollback" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">statement</em>, <em className="sig-param">arguments=None</em>, <em className="sig-param">return_shape=&lt;ResultShape.MANY_MANY: 4></em>, <em className="sig-param">named=False</em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an arbitrary SQL statement with some arguments, return an iterator of results.
+If the statement doesn’t return any results, return None. If named=True, return named
+tuples when possible.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql_batch">
+<code className="sig-name descname">run_sql_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">statement</span></em>, <em className="sig-param"><span className="n">arguments</span></em>, <em className="sig-param"><span className="n">schema</span><span className="o">=</span><span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql_batch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a parameterized SQL statement against multiple sets of arguments.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>statement</strong> – Statement to run</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>schema</strong> – Schema to run the statement in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.run_sql_in">
+<code className="sig-name descname">run_sql_in</code><span className="sig-paren">(</span><em className="sig-param">schema: str, sql: Union[psycopg2.sql.Composed, str], arguments: None = None, return_shape: splitgraph.engine.ResultShape = &lt;ResultShape.MANY_MANY: 4></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.SQLEngine.run_sql_in" title="Permalink to this definition">¶</a></dt>
+<dd><p>Executes a non-schema-qualified query against a specific schema.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema to run the query in</p></li>
+<li><p><strong>sql</strong> – Query</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>return_shape</strong> – ReturnShape to coerce the result into.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.savepoint">
+<code className="sig-name descname">savepoint</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>None<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.SQLEngine.savepoint" title="Permalink to this definition">¶</a></dt>
+<dd><p>At the beginning of this context manager, a savepoint is initialized and any database
+error that occurs in run_sql results in a rollback to this savepoint rather than the
+rollback of the whole transaction. At exit, the savepoint is released.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.schema_exists">
+<code className="sig-name descname">schema_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.SQLEngine.schema_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if a schema exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>schema</strong> – Schema name</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.SQLEngine.table_exists">
+<code className="sig-name descname">table_exists</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.SQLEngine.table_exists" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if a table exists on the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema name</p></li>
+<li><p><strong>table_name</strong> – Table name</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.SavepointStack">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">SavepointStack</code><a className="headerlink" href="#splitgraph.engine.SavepointStack" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">_thread._local</span></code></p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.get_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">get_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">use_socket</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">use_fdw_params</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → PostgresEngine<a className="headerlink" href="#splitgraph.engine.get_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the current global engine or a named remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>name</strong> – Name of the remote engine as specified in the config. If None, the current global engine
+is returned.</p></li>
+<li><p><strong>use_socket</strong> – Use a local UNIX socket instead of PG_HOST, PG_PORT for LOCAL engine connections.</p></li>
+<li><p><strong>use_fdw_params</strong> – Use the _FDW connection parameters (SG_ENGINE_FDW_HOST/PORT). By default,
+will infer from the global splitgraph.config.IN_FDW flag.</p></li>
+<li><p><strong>autocommit</strong> – If True, the engine will not open SQL transactions implicitly.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.set_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">set_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.set_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Switch the global engine to a different one.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.switch_engine">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">switch_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>None<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.switch_engine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Switch the global engine to a different one. The engine will
+get switched back on exit from the context manager.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>engine</strong> – Engine</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.validate_type">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">validate_type</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">t</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.engine.validate_type" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div><div className="section" id="splitgraph-engine-package">
+
+<div className="section" id="subpackages">
+<h2 id="subpackages">Subpackages<a className="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
+<div className="toctree-wrapper compound">
+<ul>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.engine.postgres/">splitgraph.engine.postgres package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres.engine">splitgraph.engine.postgres.engine module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.engine.postgres.mdx b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.engine.postgres.mdx
new file mode 100644
index 00000000..c748279f
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.engine.postgres.mdx
@@ -0,0 +1,444 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.engine.postgres package",
+  id: "splitgraph.engine.postgres package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphenginepostgresengine-module">splitgraph.engine.postgres.engine module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.engine.postgres">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.engine.postgres" title="Permalink to this headline">¶</a></h2>
+</div><div className="section" id="splitgraph-engine-postgres-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.engine.postgres.engine">
+<span id="splitgraph-engine-postgres-engine-module"></span><h2 id="splitgraphenginepostgresengine-module">splitgraph.engine.postgres.engine module<a className="headerlink" href="#module-splitgraph.engine.postgres.engine" title="Permalink to this headline">¶</a></h2>
+<p>Default Splitgraph engine: uses PostgreSQL to store metadata and actual objects and an audit stored procedure
+to track changes, as well as the Postgres FDW interface to upload/download objects to/from other Postgres engines.</p>
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">AuditTriggerChangeEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.postgres.engine.PsycopgEngine" title="splitgraph.engine.postgres.engine.PsycopgEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.postgres.engine.PsycopgEngine</span></code></a>, <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.ChangeEngine" title="splitgraph.engine.ChangeEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.ChangeEngine</span></code></a></p>
+<p>Change tracking based on an audit trigger stored procedure</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.discard_pending_changes">
+<code className="sig-name descname">discard_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.discard_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Discard recorded pending changes for a tracked schema / table</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_changed_tables">
+<code className="sig-name descname">get_changed_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_changed_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get list of tables that have changed content</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_pending_changes">
+<code className="sig-name descname">get_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">aggregate</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → Union<span className="p">[</span>List<span className="p">[</span>Tuple<span className="p">[</span>int<span className="p">, </span>int<span className="p">]</span><span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Tuple<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span><span className="p">…</span><span className="p">]</span><span className="p">, </span>bool<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return pending changes for a given tracked table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>schema</strong> – Schema the table belongs to</p></li>
+<li><p><strong>table</strong> – Table to return changes for</p></li>
+<li><p><strong>aggregate</strong> – Whether to aggregate changes or return them completely</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>If aggregate is True: List of tuples of (change_type, number of rows).
+If aggregate is False: List of (primary_key, change_type, change_data)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_tracked_tables">
+<code className="sig-name descname">get_tracked_tables</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.get_tracked_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return a list of tables that the audit trigger is working on.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.has_pending_changes">
+<code className="sig-name descname">has_pending_changes</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → bool<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.has_pending_changes" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return True if the tracked schema has pending changes and False if it doesn’t.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.track_tables">
+<code className="sig-name descname">track_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.track_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Install the audit trigger on the required tables</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.untrack_tables">
+<code className="sig-name descname">untrack_tables</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine.untrack_tables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Remove triggers from tables and delete their pending changes</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">PostgresEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.engine.postgres.engine.AuditTriggerChangeEngine" title="splitgraph.engine.postgres.engine.AuditTriggerChangeEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.postgres.engine.AuditTriggerChangeEngine</span></code></a>, <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.ObjectEngine" title="splitgraph.engine.ObjectEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.ObjectEngine</span></code></a></p>
+<p>An implementation of the Postgres engine for Splitgraph</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments">
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.sql.Composed<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_schema, object_table)</cite> that the objects are stored in.</p></li>
+<li><p><strong>target_schema</strong> – Schema to apply the fragment to</p></li>
+<li><p><strong>target_table</strong> – Table to apply the fragment to</p></li>
+<li><p><strong>extra_quals</strong> – Optional, extra SQL (Composable) clauses to filter new rows in the fragment on
+(e.g. SQL(“a = %s”))</p></li>
+<li><p><strong>extra_qual_args</strong> – Optional, a tuple of arguments to use with <cite>extra_quals</cite></p></li>
+<li><p><strong>schema_spec</strong> – Optional, list of (ordinal, column_name, column_type, is_pk).
+If not specified, uses the schema of target_table.</p></li>
+<li><p><strong>progress_every</strong> – If set, will report the materialization progress via
+tqdm every <cite>progress_every</cite> objects.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.delete_objects">
+<code className="sig-name descname">delete_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.delete_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete one or more objects from the engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_ids</strong> – IDs of objects to delete</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the remote engine to the local cache</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to download</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to download the objects from.</p></li>
+</ul>
+</dd>
+</dl>
+<p>:return List of object IDs that were downloaded.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object">
+<code className="sig-name descname">dump_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump an object into a series of SQL statements</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Object ID</p></li>
+<li><p><strong>stream</strong> – Text stream to dump the object into</p></li>
+<li><p><strong>schema</strong> – Schema the object lives in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation">
+<code className="sig-name descname">dump_object_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">if_not_exists</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → bytes<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation" title="Permalink to this definition">¶</a></dt>
+<dd><p>Generate the SQL that remounts a foreign table pointing to a Splitgraph object.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>schema</strong> – Schema to create the table in</p></li>
+<li><p><strong>table</strong> – Name of the table to mount</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the table</p></li>
+<li><p><strong>if_not_exists</strong> – Add IF NOT EXISTS to the DDL</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>SQL in bytes format.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_change_key">
+<code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the key used to identify a row in a change (list of column name, column type).
+If the tracked table has a PK, we use that; if it doesn’t, the whole row is used.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_object_schema">
+<code className="sig-name descname">get_object_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_object_schema" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the schema of a given object, returned as a list of
+(ordinal, column_name, column_type, is_pk).</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>object_id</strong> – ID of the object</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.get_object_size">
+<code className="sig-name descname">get_object_size</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → int<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.get_object_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Return the on-disk footprint of this object, in bytes
+:param object_id: ID of the object</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.mount_object">
+<code className="sig-name descname">mount_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_meta'</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.mount_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount an object from local storage as a foreign table.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – ID of the object</p></li>
+<li><p><strong>table</strong> – Table to mount the object into</p></li>
+<li><p><strong>schema</strong> – Schema to mount the object into</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the object.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.rename_object">
+<code className="sig-name descname">rename_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">old_object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">new_object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.rename_object" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_fragment">
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">deleted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<dd><p>Store a fragment of a changed table in another table</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>inserted</strong> – List of PKs that have been updated/inserted</p></li>
+<li><p><strong>deleted</strong> – List of PKs that have been deleted</p></li>
+<li><p><strong>schema</strong> – Schema to store the change in</p></li>
+<li><p><strong>table</strong> – Table to store the change in</p></li>
+<li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
+<li><p><strong>source_table</strong> – Name of the source table</p></li>
+<li><p><strong>source_schema_spec</strong> – Schema of the source table (optional)</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_object">
+<code className="sig-name descname">store_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_query</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>bytes<span className="p">, </span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">, </span>psycopg2.sql.SQL<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">source_query_args</span><span className="o">=</span><span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="o">=</span><span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Stores a Splitgraph object using a source query in the actual format
+implemented by this engine.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>object_id</strong> – Name of the object</p></li>
+<li><p><strong>source_query</strong> – SELECT query that produces data required by the object</p></li>
+<li><p><strong>schema_spec</strong> – Schema of the source table</p></li>
+<li><p><strong>source_query_args</strong> – Arguments to mogrify into the source query.</p></li>
+<li><p><strong>overwrite</strong> – If True, will overwrite the object if it already exists.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.sync_object_mounts">
+<code className="sig-name descname">sync_object_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.sync_object_mounts" title="Permalink to this definition">¶</a></dt>
+<dd><p>Scan through local object storage and synchronize it with the foreign tables in
+splitgraph_meta (unmounting non-existing objects and mounting existing ones).</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.unmount_objects">
+<code className="sig-name descname">unmount_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_ids</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.unmount_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Unmount objects from splitgraph_meta (this doesn’t delete the physical files.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the local cache to the remote engine</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – A remote ObjectEngine to upload the objects to.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py class">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">PsycopgEngine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">pool</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.pool.AbstractConnectionPool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">registry</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">in_fdw</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">check_version</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="splitgraph.engine/#splitgraph.engine.SQLEngine" title="splitgraph.engine.SQLEngine"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.engine.SQLEngine</span></code></a></p>
+<p>Postgres SQL engine backed by a Psycopg connection.</p>
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.close">
+<code className="sig-name descname">close</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.close" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit and close the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.close_others">
+<code className="sig-name descname">close_others</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.close_others" title="Permalink to this definition">¶</a></dt>
+<dd><p>Close and release all other connections to the connection pool.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.commit">
+<code className="sig-name descname">commit</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.commit" title="Permalink to this definition">¶</a></dt>
+<dd><p>Commit the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.connection">
+<em className="property">property </em><code className="sig-name descname">connection</code><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.connection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Engine-internal Psycopg connection.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.delete_database">
+<code className="sig-name descname">delete_database</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">database</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.delete_database" title="Permalink to this definition">¶</a></dt>
+<dd><p>Helper function to drop a database using the admin connection</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>database</strong> – Database name to drop</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.dump_table_sql">
+<code className="sig-name descname">dump_table_sql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">stream</span><span className="p">:</span> <span className="n">_io.TextIOWrapper</span></em>, <em className="sig-param"><span className="n">columns</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'*'</span></em>, <em className="sig-param"><span className="n">where</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">''</span></em>, <em className="sig-param"><span className="n">where_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Union<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.dump_table_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Dump the table contents in the SQL format
+:param schema: Schema the table is located in
+:param table_name: Name of the table
+:param stream: A file-like object to write the result into.
+:param columns: SQL column spec. Default ‘*’.
+:param where: Optional, an SQL WHERE clause
+:param where_args: Arguments for the optional WHERE clause.
+:param target_schema: Schema to create the table in (default same as <cite>schema</cite>)
+:param target_table: Name of the table to insert data into (default same as <cite>table_name</cite>)</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.get_primary_keys">
+<code className="sig-name descname">get_primary_keys</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.get_primary_keys" title="Permalink to this definition">¶</a></dt>
+<dd><p>Inspects the Postgres information_schema to get the primary keys for a given table.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.initialize">
+<code className="sig-name descname">initialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">skip_object_handling</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">skip_create_database</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.initialize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create the Splitgraph Postgres database and install the audit trigger</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>skip_object_handling</strong> – If True, skips installation of
+audit triggers and other object management routines for engines
+that don’t need change tracking or checkouts.</p></li>
+<li><p><strong>skip_create_database</strong> – Don’t create the Splitgraph database</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.lock_table">
+<code className="sig-name descname">lock_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.lock_table" title="Permalink to this definition">¶</a></dt>
+<dd><p>Acquire an exclusive lock on a given table, released when the transaction commits / rolls back.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.rollback">
+<code className="sig-name descname">rollback</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.rollback" title="Permalink to this definition">¶</a></dt>
+<dd><p>Rollback the engine’s backing connection</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call">
+<code className="sig-name descname">run_api_call</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">call</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">*</span><span className="n">args</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_api'</span></em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call_batch">
+<code className="sig-name descname">run_api_call_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">call</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">argslist</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_api'</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_api_call_batch" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_chunked_sql">
+<code className="sig-name descname">run_chunked_sql</code><span className="sig-paren">(</span><em className="sig-param">statement: Union[bytes, psycopg2.sql.Composed, str, psycopg2.sql.SQL], arguments: Sequence[Any], return_shape: Optional[splitgraph.engine.ResultShape] = &lt;ResultShape.MANY_MANY: 4>, chunk_size: int = 1000, chunk_position: int = -1</em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_chunked_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Because the Splitgraph API has a request size limitation, certain
+SQL calls with variadic arguments are going to be too long to fit that. This function
+runs an SQL query against a set of broken up arguments and returns the combined result.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_sql">
+<code className="sig-name descname">run_sql</code><span className="sig-paren">(</span><em className="sig-param">statement: Union[bytes, psycopg2.sql.Composed, str, psycopg2.sql.SQL], arguments: Optional[Sequence[Any]] = None, return_shape: Optional[splitgraph.engine.ResultShape] = &lt;ResultShape.MANY_MANY: 4>, named: bool = False</em><span className="sig-paren">)</span> → Any<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_sql" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an arbitrary SQL statement with some arguments, return an iterator of results.
+If the statement doesn’t return any results, return None. If named=True, return named
+tuples when possible.</p>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.run_sql_batch">
+<code className="sig-name descname">run_sql_batch</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">statement</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>psycopg2.sql.Composed<span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">arguments</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">max_size</span><span className="o">=</span><span className="default_value">261000</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.run_sql_batch" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run a parameterized SQL statement against multiple sets of arguments.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>statement</strong> – Statement to run</p></li>
+<li><p><strong>arguments</strong> – Query arguments</p></li>
+<li><p><strong>schema</strong> – Schema to run the statement in</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PsycopgEngine.splitgraph_version">
+<em className="property">property </em><code className="sig-name descname">splitgraph_version</code><a className="headerlink" href="#splitgraph.engine.postgres.engine.PsycopgEngine.splitgraph_version" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the version of the Splitgraph library installed on the engine
+and by association the version of the engine itself.</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.add_ud_flag_column">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">add_ud_flag_column</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_schema</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.add_ud_flag_column" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.chunk">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">chunk</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">sequence</span><span className="p">:</span> <span className="n">Sequence<span className="p">[</span>T<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">chunk_size</span><span className="p">:</span> <span className="n">int</span> <span className="o">=</span> <span className="default_value">1000</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>List<span className="p">[</span>T<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.chunk" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.get_change_key">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">get_change_key</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.get_change_key" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.engine.postgres.engine.get_conn_str">
+<code className="sig-prename descclassname">splitgraph.engine.postgres.engine.</code><code className="sig-name descname">get_conn_str</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">conn_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.engine.postgres.engine.get_conn_str" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.hooks.mdx b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.hooks.mdx
new file mode 100644
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--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.hooks.mdx
@@ -0,0 +1,283 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.hooks package",
+  id: "splitgraph.hooks package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhooksexternal_objects-module">splitgraph.hooks.external_objects module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhookss3-module">splitgraph.hooks.s3 module</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphhookssplitfile_commands-module">splitgraph.hooks.splitfile_commands module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.hooks">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.hooks" title="Permalink to this headline">¶</a></h2>
+<p>Various hooks for extending Splitgraph, including:</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>External object handlers (<a className="reference internal" href="#module-splitgraph.hooks.external_objects" title="splitgraph.hooks.external_objects"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects</span></code></a>) allowing to download/upload objects
+to locations other than the remote Splitgraph engine.</p></li>
+<li><p>Data sources (<code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.data_sources</span></code>) that allow to add data to Splitgraph, e.g.</p></li>
+</ul>
+<blockquote>
+<div><p>using the Postgres engine’s FDW interface to mount other external databases on the engine.</p>
+</div></blockquote>
+<ul className="simple">
+<li><p>Splitfile commands (<a className="reference internal" href="#module-splitgraph.hooks.splitfile_commands" title="splitgraph.hooks.splitfile_commands"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.splitfile_commands</span></code></a>) to define custom data transformation steps
+compatible with the Splitfile framework.</p></li>
+</ul>
+</div></blockquote>
+</div><div className="section" id="splitgraph-hooks-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.hooks.external_objects">
+<span id="splitgraph-hooks-external-objects-module"></span><h2 id="splitgraphhooksexternal_objects-module">splitgraph.hooks.external_objects module<a className="headerlink" href="#module-splitgraph.hooks.external_objects" title="Permalink to this headline">¶</a></h2>
+<p>Hooks for registering handlers to upload/download objects from external locations into Splitgraph’s cache.</p>
+<dl className="py class">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">ExternalObjectHandler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Framework for allowing to dump objects from the Splitgraph cache to an external location. This allows
+the objects to be stored somewhere other than the actual remote engine.</p>
+<p>External object handlers must extend this class and be registered in the Splitgraph config.</p>
+<p>For an example of how this can be used, see splitgraph.hooks.s3: it’s a handler allowing objects to be
+uploaded to S3/S3-compatible host using the Minio API. It’s registered in the config as follows:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="p">[</span><span className="n">external_handlers</span><span className="p">]</span>
+<span className="n">S3</span><span className="o">=</span><span className="n">splitgraph</span><span className="o">.</span><span className="n">hooks</span><span className="o">.</span><span className="n">s3</span><span className="o">.</span><span className="n">S3ExternalObjectHandler</span>
+</pre></div>
+</div>
+<p>The protocol and the URLs returned by this handler are stored in splitgraph_meta.external_objects
+and used to download the objects back into the Splitgraph cache when they are needed.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from the external location into the Splitgraph cache.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of tuples <cite>(object_id, object_url)</cite> that this handler had previosly
+uploaded the objects to.</p></li>
+<li><p><strong>remote_engine</strong> – An instance of Engine class that the objects will be registered on</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of object IDs that have been successfully downloaded.</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.external_objects.ExternalObjectHandler.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → Sequence<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.external_objects.ExternalObjectHandler.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects from the Splitgraph cache to an external location</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+<li><p><strong>remote_engine</strong> – An instance of Engine class that the objects will be registered on</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>A list of successfully uploaded object IDs and URLs they can be found at.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.external_objects.get_external_object_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">get_external_object_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler">splitgraph.hooks.external_objects.ExternalObjectHandler</a><a className="headerlink" href="#splitgraph.hooks.external_objects.get_external_object_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Load an external protocol handler by its name, initializing it with optional parameters.</p>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.external_objects.register_upload_download_handler">
+<code className="sig-prename descclassname">splitgraph.hooks.external_objects.</code><code className="sig-name descname">register_upload_download_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_class</span><span className="p">:</span> <span className="n">Callable<span className="p">[</span><span className="p">[</span><span className="p">…</span><span className="p">]</span><span className="p">, </span><a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler">splitgraph.hooks.external_objects.ExternalObjectHandler</a><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.external_objects.register_upload_download_handler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Register an external protocol handler. See the docstring for <cite>get_upload_download_handler</cite> for the required
+signatures of the handler functions.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.mount_handlers">
+<span id="splitgraph-hooks-mount-handlers-module"></span><h2 id="splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module<a className="headerlink" href="#module-splitgraph.hooks.mount_handlers" title="Permalink to this headline">¶</a></h2>
+<p>Extra wrapper code for mount handlers</p>
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_kwargs</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mounts a foreign database via an FDW (without creating new Splitgraph objects)</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Mountpoint to import the new tables into.</p></li>
+<li><p><strong>mount_handler</strong> – The type of the mounted database.</p></li>
+<li><p><strong>handler_kwargs</strong> – Dictionary of options to pass to the mount handler.</p></li>
+<li><p><strong>overwrite</strong> – Delete the foreign server if it already exists. Used by mount_postgres for data pulls.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.mount_handlers.mount_postgres">
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_postgres</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_postgres" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mount a Postgres database.</p>
+<p>Mounts a schema on a remote Postgres database as a set of foreign tables locally.
+</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
+<li><p><strong>server</strong> – Database hostname.</p></li>
+<li><p><strong>port</strong> – Port the Postgres server is running on.</p></li>
+<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
+<li><p><strong>password</strong> – Password for the read-only user.</p></li>
+<li><p><strong>dbname</strong> – Remote database name.</p></li>
+<li><p><strong>remote_schema</strong> – Remote schema name.</p></li>
+<li><p><strong>extra_server_args</strong> – Dictionary of extra arguments to pass to the foreign server</p></li>
+<li><p><strong>tables</strong> – Tables to mount (default all). If a list, then will use IMPORT FOREIGN SCHEMA.</p></li>
+</ul>
+</dd>
+</dl>
+<p>If a dictionary, must have the format &#38;lbrace;“table_name”: &#38;lbrace;“col_1”: “type_1”, …&#38;rbrace;&#38;rbrace;.</p>
+</dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.s3">
+<span id="splitgraph-hooks-s3-module"></span><h2 id="splitgraphhookss3-module">splitgraph.hooks.s3 module<a className="headerlink" href="#module-splitgraph.hooks.s3" title="Permalink to this headline">¶</a></h2>
+<p>Plugin for uploading Splitgraph objects from the cache to an external S3-like object store</p>
+<dl className="py class">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">S3ExternalObjectHandler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>Any<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.hooks.external_objects.ExternalObjectHandler" title="splitgraph.hooks.external_objects.ExternalObjectHandler"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects.ExternalObjectHandler</span></code></a></p>
+<p>Uploads/downloads the objects to/from S3/S3-compatible host using the Minio client.</p>
+<p>The handler is “attached” to a given registry which manages issuing pre-signed
+GET/PUT URLs.</p>
+<p>The handler supports a parameter <cite>threads</cite> specifying the number of threads
+used to upload the objects.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler.download_objects">
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler.download_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Download objects from Minio.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><p><strong>objects</strong> – List of (object ID, object URL (object ID it’s stored under))</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.s3.S3ExternalObjectHandler.upload_objects">
+<code className="sig-name descname">upload_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_engine</span><span className="p">:</span> <span className="n">PsycopgEngine</span></em><span className="sig-paren">)</span> → List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.s3.S3ExternalObjectHandler.upload_objects" title="Permalink to this definition">¶</a></dt>
+<dd><p>Upload objects to Minio</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>remote_engine</strong> – Remote Engine class</p></li>
+<li><p><strong>objects</strong> – List of object IDs to upload</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>List of tuples with successfully uploaded objects and their URLs.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.s3.get_object_download_urls">
+<code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">get_object_download_urls</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_engine</span></em>, <em className="sig-param"><span className="n">remote_object_ids</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.get_object_download_urls" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.hooks.s3.get_object_upload_urls">
+<code className="sig-prename descclassname">splitgraph.hooks.s3.</code><code className="sig-name descname">get_object_upload_urls</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_engine</span></em>, <em className="sig-param"><span className="n">objects</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.s3.get_object_upload_urls" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+<div className="section" id="module-splitgraph.hooks.splitfile_commands">
+<span id="splitgraph-hooks-splitfile-commands-module"></span><h2 id="splitgraphhookssplitfile_commands-module">splitgraph.hooks.splitfile_commands module<a className="headerlink" href="#module-splitgraph.hooks.splitfile_commands" title="Permalink to this headline">¶</a></h2>
+<p>A framework for custom Splitfile commands. The execution flow is as follows:</p>
+<blockquote>
+<div><ul>
+<li><p>When the Splitfile executor finds an unknown command, it looks for an entry in the config file:</p>
+<div className="highlight-default notranslate"><div className="highlight"><pre><span></span><span className="p">[</span><span className="n">commands</span><span className="p">]</span>
+<span className="n">RUN</span><span className="o">=</span><span className="n">splitgraph</span><span className="o">.</span><span className="n">plugins</span><span className="o">.</span><span className="n">Run</span>
+</pre></div>
+</div>
+</li>
+<li><p>The command class must extend this class, initialized at every invocation time.</p></li>
+<li><p>The command’s <cite>calc_hash()</cite> method is run. The resultant command context hash is combined with the current
+image hash to produce the new image hash: if it already exists, then the image is simply checked out.</p></li>
+<li><p>Otherwise (or if calc_hash is undefined or returns None), <cite>execute()</cite>, where the actual command should be
+implemented, is run. If it returns a hash, this hash is used for the new image. If this hash already exists,
+the existing image is checked out instead. If the command returns None, a random hash is generated for the
+new image.</p></li>
+</ul>
+</div></blockquote>
+<dl className="py class">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.hooks.splitfile_commands.</code><code className="sig-name descname">PluginCommand</code><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<p>Base class for custom Splitfile commands.</p>
+<dl className="py method">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand.calc_hash">
+<code className="sig-name descname">calc_hash</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span></em>, <em className="sig-param"><span className="n">args</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand.calc_hash" title="Permalink to this definition">¶</a></dt>
+<dd><p>Calculates the command context hash for this custom command. If either the command context hash or the
+previous image hash has changed, then the image hash produced by this command will change.
+Consequently, two commands with the same command context hashes are assumed to have the same effect
+on any Splitgraph images.</p>
+<p>This is supposed to be a lightweight method intended for pre-flight image hash calculations
+(without performing the actual transformation). If it returns None, the actual transformation is run anyway.</p>
+<p>For example, for a command that imports some data from an external URL, this could be the hash of the last
+modified timestamp provided by the external data vendor. If the timestamp is unchanged, the data is unchanged
+and so actual command won’t be re-executed.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>repository</strong> – SG Repository object pointed to a schema with the checked out image
+the command is being run against.</p></li>
+<li><p><strong>args</strong> – Positional arguments to the command</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Command context hash (a string of 64 hexadecimal digits)</p>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.hooks.splitfile_commands.PluginCommand.execute">
+<code className="sig-name descname">execute</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">repository</span></em>, <em className="sig-param"><span className="n">args</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.hooks.splitfile_commands.PluginCommand.execute" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute the custom command against the target schema, optionally returning the new image hash. The contract
+for the command is as follows (though it is not currently enforced by the runtime):</p>
+<blockquote>
+<div><ul className="simple">
+<li><p>Has to use get_engine().run_sql (or run_sql_batch) to interact with the engine.</p></li>
+<li><p>Can only write to the schema with the checked-out repository (run_sql runs non-schema-qualified
+statements against the correct schema).</p></li>
+<li><p>Can inspect splitgraph_meta (e.g. to find the current HEAD) for the repository.</p></li>
+<li><p>Can’t alter the versioning of the repository.</p></li>
+</ul>
+</div></blockquote>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>repository</strong> – SG Repository object pointed to a schema with the checked out image
+the command is being run against.</p></li>
+<li><p><strong>args</strong> – Positional arguments to the command</p></li>
+</ul>
+</dd>
+<dt className="field-even">Returns</dt>
+<dd className="field-even"><p>Command context hash (a string of 64 hexadecimal digits). If calc_hash() had previously returned
+a hash, this hash is ignored. If both this command and calc_hash() return None, the hash is randomly
+generated.</p>
+</dd>
+</dl>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.mdx b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.mdx
new file mode 100644
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--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.mdx
@@ -0,0 +1,254 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph package",
+  id: "splitgraph package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#subpackages">Subpackages</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphexceptions-module">splitgraph.exceptions module</a></li><li className="toc-item toc-item-h1"><a className="toc-link toc-link-h1" href="#indices-and-tables">Indices and tables</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph" title="Permalink to this headline">¶</a></h2>
+</div><div className="section" id="splitgraph-package">
+
+<div className="section" id="subpackages">
+<h2 id="subpackages">Subpackages<a className="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
+<div className="toctree-wrapper compound">
+<ul>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.config/">splitgraph.config package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.argument_config">splitgraph.config.argument_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.config">splitgraph.config.config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.config_file_config">splitgraph.config.config_file_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.default_config">splitgraph.config.default_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.environment_config">splitgraph.config.environment_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.keys">splitgraph.config.keys module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config.system_config">splitgraph.config.system_config module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.config/#module-splitgraph.config">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.core/">splitgraph.core package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.engine">splitgraph.core.engine module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.image">splitgraph.core.image module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.object_manager">splitgraph.core.object_manager module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.registry">splitgraph.core.registry module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.repository">splitgraph.core.repository module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core.table">splitgraph.core.table module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.core/#module-splitgraph.core">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.engine/">splitgraph.engine package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine/#subpackages">Subpackages</a><ul>
+<li className="toctree-l3"><a className="reference internal" href="splitgraph.engine.postgres/">splitgraph.engine.postgres package</a><ul>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#submodules">Submodules</a></li>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres.engine">splitgraph.engine.postgres.engine module</a></li>
+<li className="toctree-l4"><a className="reference internal" href="splitgraph.engine.postgres/#module-splitgraph.engine.postgres">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.engine/#module-splitgraph.engine">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.hooks/">splitgraph.hooks package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.external_objects">splitgraph.hooks.external_objects module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.mount_handlers">splitgraph.hooks.mount_handlers module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.s3">splitgraph.hooks.s3 module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks.splitfile_commands">splitgraph.hooks.splitfile_commands module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.hooks/#module-splitgraph.hooks">Module contents</a></li>
+</ul>
+</li>
+<li className="toctree-l1"><a className="reference internal" href="splitgraph.splitfile/">splitgraph.splitfile package</a><ul>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#submodules">Submodules</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#module-splitgraph.splitfile.execution">splitgraph.splitfile.execution module</a></li>
+<li className="toctree-l2"><a className="reference internal" href="splitgraph.splitfile/#module-splitgraph.splitfile">Module contents</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.exceptions">
+<span id="splitgraph-exceptions-module"></span><h2 id="splitgraphexceptions-module">splitgraph.exceptions module<a className="headerlink" href="#module-splitgraph.exceptions" title="Permalink to this headline">¶</a></h2>
+<p>Exceptions that can be raised by the Splitgraph library.</p>
+<dl className="py exception">
+<dt id="splitgraph.exceptions.APICompatibilityError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">APICompatibilityError</code><a className="headerlink" href="#splitgraph.exceptions.APICompatibilityError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions related to API incompatibilities</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.AuthAPIError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">AuthAPIError</code><a className="headerlink" href="#splitgraph.exceptions.AuthAPIError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by the Auth API</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.CheckoutError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">CheckoutError</code><a className="headerlink" href="#splitgraph.exceptions.CheckoutError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to checking out/committing repositories</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.DataSourceError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">DataSourceError</code><a className="headerlink" href="#splitgraph.exceptions.DataSourceError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by mount handlers.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.DockerUnavailableError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">DockerUnavailableError</code><a className="headerlink" href="#splitgraph.exceptions.DockerUnavailableError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Could not connect to the Docker daemon.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.EngineInitializationError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">EngineInitializationError</code><a className="headerlink" href="#splitgraph.exceptions.EngineInitializationError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when the engine isn’t initialized (no splitgraph_meta schema or audit triggers)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ExternalHandlerError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ExternalHandlerError</code><a className="headerlink" href="#splitgraph.exceptions.ExternalHandlerError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by external object handlers.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLAPIError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLAPIError</code><a className="headerlink" href="#splitgraph.exceptions.GQLAPIError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>GQL API errors</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLRepoDoesntExistError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLRepoDoesntExistError</code><a className="headerlink" href="#splitgraph.exceptions.GQLRepoDoesntExistError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Repository doesn’t exist</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLUnauthenticatedError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLUnauthenticatedError</code><a className="headerlink" href="#splitgraph.exceptions.GQLUnauthenticatedError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Unauthenticated (user not logged in)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.GQLUnauthorizedError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">GQLUnauthorizedError</code><a className="headerlink" href="#splitgraph.exceptions.GQLUnauthorizedError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.GQLAPIError" title="splitgraph.exceptions.GQLAPIError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.GQLAPIError</span></code></a></p>
+<p>Unauthorized (e.g. repository isn’t writeable by the user)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ImageNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ImageNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.ImageNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A Splitgraph image doesn’t exist.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.IncompleteObjectDownloadError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">IncompleteObjectDownloadError</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reason</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>BaseException<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.exceptions.IncompleteObjectDownloadError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when an error is encountered during download of multiple objects.
+The handler is supposed to perform any necessary
+cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.IncompleteObjectUploadError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">IncompleteObjectUploadError</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">reason</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>BaseException<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">successful_object_urls</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.exceptions.IncompleteObjectUploadError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when an error is encountered during upload of multiple objects.
+The handler is supposed to perform any necessary
+cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectCacheError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectCacheError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectCacheError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Issues with the object cache (not enough space)</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectIndexingError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectIndexingError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectIndexingError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to indexing objects</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectMountingError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectMountingError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectMountingError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Errors related to incompatible objects.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.ObjectNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised when a physical object doesn’t exist in the cache.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.RepositoryNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">RepositoryNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.RepositoryNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A Splitgraph repository doesn’t exist.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.SplitGraphError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">SplitGraphError</code><a className="headerlink" href="#splitgraph.exceptions.SplitGraphError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">Exception</span></code></p>
+<p>A generic Splitgraph exception.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.SplitfileError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">SplitfileError</code><a className="headerlink" href="#splitgraph.exceptions.SplitfileError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Generic error class for Splitfile interpretation/execution errors.</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.TableNotFoundError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">TableNotFoundError</code><a className="headerlink" href="#splitgraph.exceptions.TableNotFoundError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>A table doesn’t exist in an image</p>
+</dd></dl>
+
+<dl className="py exception">
+<dt id="splitgraph.exceptions.UnsupportedSQLError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">UnsupportedSQLError</code><a className="headerlink" href="#splitgraph.exceptions.UnsupportedSQLError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Raised for unsupported SQL statements, for example, containing schema-qualified tables when the statement
+is supposed to be used in an SQL/IMPORT Splitfile command.</p>
+</dd></dl>
+
+</div>
+
+</div>
+<div className="section" id="indices-and-tables">
+<h1 id="indices-and-tables">Indices and tables<a className="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h1>
+<ul className="simple">
+<li><p><a className="reference internal" href="../genindex/"><span className="std std-ref">Index</span></a></p></li>
+<li><p><a className="reference internal" href="../py-modindex/"><span className="std std-ref">Module Index</span></a></p></li>
+<li><p><a className="reference internal" href="../search/"><span className="std std-ref">Search Page</span></a></p></li>
+</ul>
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.splitfile.mdx b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.splitfile.mdx
new file mode 100644
index 00000000..b0460786
--- /dev/null
+++ b/content/docs/9500_python-api/9000_versions/v0.2.5/splitgraph.splitfile.mdx
@@ -0,0 +1,89 @@
+
+import "@splitgraph/design/css/sphinxtheme.css";
+
+export const meta = {
+  title: "splitgraph.splitfile package",
+  id: "splitgraph.splitfile package"
+};
+
+<div className=" rst-content"><nav className="toc"><ol className="toc-level toc-level-1"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#module-contents">Module contents</a></li><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#submodules">Submodules</a><ol className="toc-level toc-level-2"><li className="toc-item toc-item-h2"><a className="toc-link toc-link-h2" href="#splitgraphsplitfileexecution-module">splitgraph.splitfile.execution module</a></li></ol></li></ol></nav><div className="section" id="module-splitgraph.splitfile">
+<span id="module-contents"></span><h2 id="module-contents">Module contents<a className="headerlink" href="#module-splitgraph.splitfile" title="Permalink to this headline">¶</a></h2>
+<p>Splitfile interpreter: a set of tools on top of the core Splitgraph versioning and image management to give
+the user a Dockerfile-like experience for building Splitgraph images (caching, consistent hashing, a declarative
+language).</p>
+</div><div className="section" id="splitgraph-splitfile-package">
+
+<div className="section" id="submodules">
+<h2 id="submodules">Submodules<a className="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div className="section" id="module-splitgraph.splitfile.execution">
+<span id="splitgraph-splitfile-execution-module"></span><h2 id="splitgraphsplitfileexecution-module">splitgraph.splitfile.execution module<a className="headerlink" href="#module-splitgraph.splitfile.execution" title="Permalink to this headline">¶</a></h2>
+<p>Functions for executing Splitfiles.</p>
+<dl className="py class">
+<dt id="splitgraph.splitfile.execution.ImageMapper">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">ImageMapper</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_engine</span><span className="p">:</span> <span className="n"><a className="reference internal" href="splitgraph.engine.postgres/#splitgraph.engine.postgres.engine.PostgresEngine" title="splitgraph.engine.postgres.engine.PostgresEngine">splitgraph.engine.postgres.engine.PostgresEngine</a></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">object</span></code></p>
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.get_provenance_data">
+<code className="sig-name descname">get_provenance_data</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>bool<span className="p">]</span><span className="p">, </span>List<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.get_provenance_data" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.setup_lq_mounts">
+<code className="sig-name descname">setup_lq_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.setup_lq_mounts" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py method">
+<dt id="splitgraph.splitfile.execution.ImageMapper.teardown_lq_mounts">
+<code className="sig-name descname">teardown_lq_mounts</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.ImageMapper.teardown_lq_mounts" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.execute_commands">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">execute_commands</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">commands</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">params</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">output</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="splitgraph.core/#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">output_base</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'00000000000000000000000000000000'</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.execute_commands" title="Permalink to this definition">¶</a></dt>
+<dd><p>Executes a series of Splitfile commands.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>commands</strong> – A string with the raw Splitfile.</p></li>
+<li><p><strong>params</strong> – A dictionary of parameters to be applied to the Splitfile (<cite>$&#38;lbrace;PARAM&#38;rbrace;</cite> is replaced with the specified
+parameter value).</p></li>
+<li><p><strong>output</strong> – Output repository to execute the Splitfile against.</p></li>
+<li><p><strong>output_base</strong> – If not None, a revision that gets checked out for all Splitfile actions to be committed
+on top of it.</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.getrandbits">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">getrandbits</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">k</span></em><span className="sig-paren">)</span> → x.  Generates an int with k random bits.<a className="headerlink" href="#splitgraph.splitfile.execution.getrandbits" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.prevalidate_imports">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">prevalidate_imports</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">table_names</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">table_queries</span><span className="p">:</span> <span className="n">List<span className="p">[</span>bool<span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.splitfile.execution.prevalidate_imports" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl className="py function">
+<dt id="splitgraph.splitfile.execution.rebuild_image">
+<code className="sig-prename descclassname">splitgraph.splitfile.execution.</code><code className="sig-name descname">rebuild_image</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">image</span><span className="p">:</span> <span className="n"><a className="reference internal" href="splitgraph.core/#splitgraph.core.image.Image" title="splitgraph.core.image.Image">splitgraph.core.image.Image</a></span></em>, <em className="sig-param"><span className="n">source_replacement</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span><a className="reference internal" href="splitgraph.core/#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">, </span>str<span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.splitfile.execution.rebuild_image" title="Permalink to this definition">¶</a></dt>
+<dd><p>Recreates the Splitfile used to create a given image and reruns it, replacing its dependencies with a different
+set of versions.</p>
+<dl className="field-list simple">
+<dt className="field-odd">Parameters</dt>
+<dd className="field-odd"><ul className="simple">
+<li><p><strong>image</strong> – Image object</p></li>
+<li><p><strong>source_replacement</strong> – A map that specifies replacement images/tags for repositories that the image depends on</p></li>
+</ul>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+
+</div>
+</div>
\ No newline at end of file
diff --git a/content/docs/9500_python-api/metadata.json b/content/docs/9500_python-api/metadata.json
index 83569d4b..b87aadae 100644
--- a/content/docs/9500_python-api/metadata.json
+++ b/content/docs/9500_python-api/metadata.json
@@ -1,21 +1,21 @@
 {
   "title": "Python API",
-  "updated_at": "2020-08-19T12:21:53.606Z",
+  "updated_at": "2021-01-26T14:48:02.658Z",
   "release": {
-    "id": 29809771,
-    "tag_name": "v0.2.0",
-    "target_commitish": "fc2111a585b03d322ce4207e385470d6746e4292",
-    "created_at": "2020-08-18T10:20:14Z",
-    "published_at": "2020-08-18T11:16:01Z",
+    "id": 36852954,
+    "tag_name": "v0.2.5",
+    "target_commitish": "503e1ef49355352e46a7407c2a75ef40fda887f7",
+    "created_at": "2021-01-25T11:24:56Z",
+    "published_at": "2021-01-25T11:57:52Z",
     "assets": [
       {
-        "id": 24041264,
-        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/24041264",
+        "id": 31148972,
+        "url": "https://api.github.com/repos/splitgraph/splitgraph/releases/assets/31148972",
         "name": "sgr-docs-bin.tar.gz",
         "label": "",
-        "created_at": "2020-08-18T11:03:51Z",
-        "updated_at": "2020-08-18T11:03:52Z",
-        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.0/sgr-docs-bin.tar.gz"
+        "created_at": "2021-01-25T11:52:07Z",
+        "updated_at": "2021-01-25T11:52:07Z",
+        "browser_download_url": "https://github.com/splitgraph/splitgraph/releases/download/v0.2.5/sgr-docs-bin.tar.gz"
       }
     ]
   },
diff --git a/content/docs/9500_python-api/splitgraph.config.mdx b/content/docs/9500_python-api/splitgraph.config.mdx
index 764a3f80..3201eefe 100644
--- a/content/docs/9500_python-api/splitgraph.config.mdx
+++ b/content/docs/9500_python-api/splitgraph.config.mdx
@@ -66,7 +66,7 @@ immediately following the argument matching a key in ARG_KEYS, e.g.:</p>
 <dl className="py function">
 <dt id="splitgraph.config.config.get_all_in_section">
 <code className="sig-prename descclassname">splitgraph.config.config.</code><code className="sig-name descname">get_all_in_section</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">config</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">section</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><a className="headerlink" href="#splitgraph.config.config.get_all_in_section" title="Permalink to this definition">¶</a></dt>
-<dd><p>Get all subsections from a config (e.g. config[“mount_handlers”])</p>
+<dd><p>Get all subsections from a config (e.g. config[“data_sources”])</p>
 </dd></dl>
 
 <dl className="py function">
diff --git a/content/docs/9500_python-api/splitgraph.core.mdx b/content/docs/9500_python-api/splitgraph.core.mdx
index faef8b81..5f7f51fe 100644
--- a/content/docs/9500_python-api/splitgraph.core.mdx
+++ b/content/docs/9500_python-api/splitgraph.core.mdx
@@ -236,7 +236,7 @@ used for the lookup of dependents.</p>
 
 <dl className="py method">
 <dt id="splitgraph.core.image.Image.query_schema">
-<code className="sig-name descname">query_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.query_schema" title="Permalink to this definition">¶</a></dt>
+<code className="sig-name descname">query_schema</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">'splitgraph.core.fdw_checkout.QueryingForeignDataWrapper'</span></em>, <em className="sig-param"><span className="n">commit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → Iterator<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.image.Image.query_schema" title="Permalink to this definition">¶</a></dt>
 <dd><p>Creates a temporary schema with tables in this image mounted as foreign tables that can be accessed via
 read-only layered querying. On exit from the context manager, the schema is discarded.</p>
 <dl className="field-list simple">
@@ -327,7 +327,7 @@ their remote locations. Also deletes all objects not registered in the object_tr
 
 <dl className="py method">
 <dt id="splitgraph.core.object_manager.ObjectManager.download_objects">
-<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">ObjectManager</a><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects_to_fetch</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">object_locations</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.download_objects" title="Permalink to this definition">¶</a></dt>
+<code className="sig-name descname">download_objects</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">source</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.object_manager.ObjectManager" title="splitgraph.core.object_manager.ObjectManager">splitgraph.core.object_manager.ObjectManager</a><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">objects_to_fetch</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">object_locations</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.core.object_manager.ObjectManager.download_objects" title="Permalink to this definition">¶</a></dt>
 <dd><p>Fetches the required objects from the remote and stores them locally.
 Does nothing for objects that already exist.</p>
 <dl className="field-list simple">
@@ -764,7 +764,7 @@ required objects when a table is checked out.</p></li>
 
 <dl className="py method">
 <dt id="splitgraph.core.repository.Repository.push">
-<code className="sig-name descname">push</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">reupload_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.push" title="Permalink to this definition">¶</a></dt>
+<code className="sig-name descname">push</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">reupload_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">handler</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'DB'</span></em>, <em className="sig-param"><span className="n">handler_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.Repository.push" title="Permalink to this definition">¶</a></dt>
 <dd><p>Inverse of <code className="docutils literal notranslate"><span className="pre">pull</span></code>: Pushes all local changes to the remote and uploads new objects.</p>
 <dl className="field-list simple">
 <dt className="field-odd">Parameters</dt>
@@ -834,7 +834,7 @@ to store them in an S3 bucket.</p></li>
 
 <dl className="py function">
 <dt id="splitgraph.core.repository.clone">
-<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">clone</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">local_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.clone" title="Permalink to this definition">¶</a></dt>
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">clone</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n">Union<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">local_repository</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite_objects</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">overwrite_tags</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">download_all</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>bool<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">single_image</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → <a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a><a className="headerlink" href="#splitgraph.core.repository.clone" title="Permalink to this definition">¶</a></dt>
 <dd><p>Clones a remote Splitgraph repository or synchronizes remote changes with the local ones.</p>
 <p>If the target repository has no set upstream engine, the source repository becomes its upstream.</p>
 <dl className="field-list simple">
@@ -864,7 +864,7 @@ objects when a table is checked out.</p></li>
 
 <dl className="py function">
 <dt id="splitgraph.core.repository.import_table_from_remote">
-<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">import_table_from_remote</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">remote_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">target_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.import_table_from_remote" title="Permalink to this definition">¶</a></dt>
+<code className="sig-prename descclassname">splitgraph.core.repository.</code><code className="sig-name descname">import_table_from_remote</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">remote_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">remote_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">remote_image_hash</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_repository</span><span className="p">:</span> <span className="n"><a className="reference internal" href="#splitgraph.core.repository.Repository" title="splitgraph.core.repository.Repository">splitgraph.core.repository.Repository</a></span></em>, <em className="sig-param"><span className="n">target_tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_hash</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.repository.import_table_from_remote" title="Permalink to this definition">¶</a></dt>
 <dd><p>Shorthand for importing one or more tables from a yet-uncloned remote. Here, the remote image hash is required,
 as otherwise we aren’t necessarily able to determine what the remote head is.</p>
 <dl className="field-list simple">
@@ -953,7 +953,7 @@ objects have been downloaded.</p>
 
 <dl className="py method">
 <dt id="splitgraph.core.table.Table.materialize">
-<code className="sig-name descname">materialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">destination</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">destination_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">lq_server</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.table.Table.materialize" title="Permalink to this definition">¶</a></dt>
+<code className="sig-name descname">materialize</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">destination</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">destination_schema</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">lq_server</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">temporary</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.core.table.Table.materialize" title="Permalink to this definition">¶</a></dt>
 <dd><p>Materializes a Splitgraph table in the target schema as a normal Postgres table, potentially downloading all
 required objects and using them to reconstruct the table.</p>
 <dl className="field-list simple">
@@ -1050,11 +1050,6 @@ overwrite any other objects. If False, will log a warning but will reindex all n
 
 </dd></dl>
 
-<dl className="py function">
-<dt id="splitgraph.core.table.create_foreign_table">
-<code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">create_foreign_table</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table_name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">internal_table_name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.create_foreign_table" title="Permalink to this definition">¶</a></dt>
-<dd></dd></dl>
-
 <dl className="py function">
 <dt id="splitgraph.core.table.merge_index_data">
 <code className="sig-prename descclassname">splitgraph.core.table.</code><code className="sig-name descname">merge_index_data</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">current_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">new_index</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.core.table.merge_index_data" title="Permalink to this definition">¶</a></dt>
diff --git a/content/docs/9500_python-api/splitgraph.engine.mdx b/content/docs/9500_python-api/splitgraph.engine.mdx
index c829cda8..1d4e86c9 100644
--- a/content/docs/9500_python-api/splitgraph.engine.mdx
+++ b/content/docs/9500_python-api/splitgraph.engine.mdx
@@ -195,7 +195,7 @@ tqdm every <cite>progress_every</cite> objects.</p></li>
 
 <dl className="py method">
 <dt id="splitgraph.engine.ObjectEngine.store_fragment">
-<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span></em>, <em className="sig-param"><span className="n">deleted</span></em>, <em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">source_schema</span></em>, <em className="sig-param"><span className="n">source_table</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span></em>, <em className="sig-param"><span className="n">deleted</span></em>, <em className="sig-param"><span className="n">schema</span></em>, <em className="sig-param"><span className="n">table</span></em>, <em className="sig-param"><span className="n">source_schema</span></em>, <em className="sig-param"><span className="n">source_table</span></em>, <em className="sig-param"><span className="n">source_schema_spec</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.ObjectEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
 <dd><p>Store a fragment of a changed table in another table</p>
 <dl className="field-list simple">
 <dt className="field-odd">Parameters</dt>
@@ -206,6 +206,7 @@ tqdm every <cite>progress_every</cite> objects.</p></li>
 <li><p><strong>table</strong> – Table to store the change in</p></li>
 <li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
 <li><p><strong>source_table</strong> – Name of the source table</p></li>
+<li><p><strong>source_schema_spec</strong> – Schema of the source table (optional)</p></li>
 </ul>
 </dd>
 </dl>
@@ -492,6 +493,12 @@ rollback of the whole transaction. At exit, the savepoint is released.</p>
 
 </dd></dl>
 
+<dl className="py class">
+<dt id="splitgraph.engine.SavepointStack">
+<em className="property">class </em><code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">SavepointStack</code><a className="headerlink" href="#splitgraph.engine.SavepointStack" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code className="xref py py-class docutils literal notranslate"><span className="pre">_thread._local</span></code></p>
+</dd></dl>
+
 <dl className="py function">
 <dt id="splitgraph.engine.get_engine">
 <code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">get_engine</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">use_socket</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">use_fdw_params</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em>, <em className="sig-param"><span className="n">autocommit</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → PostgresEngine<a className="headerlink" href="#splitgraph.engine.get_engine" title="Permalink to this definition">¶</a></dt>
@@ -533,6 +540,11 @@ get switched back on exit from the context manager.</p>
 </dl>
 </dd></dl>
 
+<dl className="py function">
+<dt id="splitgraph.engine.validate_type">
+<code className="sig-prename descclassname">splitgraph.engine.</code><code className="sig-name descname">validate_type</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">t</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → str<a className="headerlink" href="#splitgraph.engine.validate_type" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
 </div><div className="section" id="splitgraph-engine-package">
 
 <div className="section" id="subpackages">
diff --git a/content/docs/9500_python-api/splitgraph.engine.postgres.mdx b/content/docs/9500_python-api/splitgraph.engine.postgres.mdx
index 0c07455e..c748279f 100644
--- a/content/docs/9500_python-api/splitgraph.engine.postgres.mdx
+++ b/content/docs/9500_python-api/splitgraph.engine.postgres.mdx
@@ -86,7 +86,7 @@ If aggregate is False: List of (primary_key, change_type, change_data)</p>
 <p>An implementation of the Postgres engine for Splitgraph</p>
 <dl className="py method">
 <dt id="splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments">
-<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.sql.Composed<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
+<code className="sig-name descname">apply_fragments</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">objects</span><span className="p">:</span> <span className="n">List<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span></em>, <em className="sig-param"><span className="n">target_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">target_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">extra_quals</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>psycopg2.sql.Composed<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">extra_qual_args</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Tuple<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">progress_every</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>int<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.apply_fragments" title="Permalink to this definition">¶</a></dt>
 <dd><p>Apply multiple fragments to a target table as a single-query batch operation.</p>
 <dl className="field-list simple">
 <dt className="field-odd">Parameters</dt>
@@ -149,7 +149,7 @@ tqdm every <cite>progress_every</cite> objects.</p></li>
 
 <dl className="py method">
 <dt id="splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation">
-<code className="sig-name descname">dump_object_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">if_not_exists</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → bytes<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation" title="Permalink to this definition">¶</a></dt>
+<code className="sig-name descname">dump_object_creation</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">if_not_exists</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">False</span></em><span className="sig-paren">)</span> → bytes<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.dump_object_creation" title="Permalink to this definition">¶</a></dt>
 <dd><p>Generate the SQL that remounts a foreign table pointing to a Splitgraph object.</p>
 <dl className="field-list simple">
 <dt className="field-odd">Parameters</dt>
@@ -195,7 +195,7 @@ If the tracked table has a PK, we use that; if it doesn’t, the whole row is us
 
 <dl className="py method">
 <dt id="splitgraph.engine.postgres.engine.PostgresEngine.mount_object">
-<code className="sig-name descname">mount_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_meta'</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>TableSchema<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.mount_object" title="Permalink to this definition">¶</a></dt>
+<code className="sig-name descname">mount_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">None</span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span> <span className="o">=</span> <span className="default_value">'splitgraph_meta'</span></em>, <em className="sig-param"><span className="n">schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.mount_object" title="Permalink to this definition">¶</a></dt>
 <dd><p>Mount an object from local storage as a foreign table.</p>
 <dl className="field-list simple">
 <dt className="field-odd">Parameters</dt>
@@ -209,9 +209,14 @@ If the tracked table has a PK, we use that; if it doesn’t, the whole row is us
 </dl>
 </dd></dl>
 
+<dl className="py method">
+<dt id="splitgraph.engine.postgres.engine.PostgresEngine.rename_object">
+<code className="sig-name descname">rename_object</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">old_object_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">new_object_id</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span><a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.rename_object" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
 <dl className="py method">
 <dt id="splitgraph.engine.postgres.engine.PostgresEngine.store_fragment">
-<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">deleted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
+<code className="sig-name descname">store_fragment</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">inserted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">deleted</span><span className="p">:</span> <span className="n">Any</span></em>, <em className="sig-param"><span className="n">schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_table</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">source_schema_spec</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>splitgraph.core.types.TableColumn<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.engine.postgres.engine.PostgresEngine.store_fragment" title="Permalink to this definition">¶</a></dt>
 <dd><p>Store a fragment of a changed table in another table</p>
 <dl className="field-list simple">
 <dt className="field-odd">Parameters</dt>
@@ -222,6 +227,7 @@ If the tracked table has a PK, we use that; if it doesn’t, the whole row is us
 <li><p><strong>table</strong> – Table to store the change in</p></li>
 <li><p><strong>source_schema</strong> – Schema the source table is located in</p></li>
 <li><p><strong>source_table</strong> – Name of the source table</p></li>
+<li><p><strong>source_schema_spec</strong> – Schema of the source table (optional)</p></li>
 </ul>
 </dd>
 </dl>
diff --git a/content/docs/9500_python-api/splitgraph.hooks.mdx b/content/docs/9500_python-api/splitgraph.hooks.mdx
index 3999a8c4..73004fec 100644
--- a/content/docs/9500_python-api/splitgraph.hooks.mdx
+++ b/content/docs/9500_python-api/splitgraph.hooks.mdx
@@ -13,8 +13,12 @@ export const meta = {
 <div><ul className="simple">
 <li><p>External object handlers (<a className="reference internal" href="#module-splitgraph.hooks.external_objects" title="splitgraph.hooks.external_objects"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.external_objects</span></code></a>) allowing to download/upload objects
 to locations other than the remote Splitgraph engine.</p></li>
-<li><p>FDW handlers (<a className="reference internal" href="#module-splitgraph.hooks.mount_handlers" title="splitgraph.hooks.mount_handlers"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.mount_handlers</span></code></a>) that allow to use the Postgres engine’s FDW interface
-to mount other external databases on the engine.</p></li>
+<li><p>Data sources (<code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.data_sources</span></code>) that allow to add data to Splitgraph, e.g.</p></li>
+</ul>
+<blockquote>
+<div><p>using the Postgres engine’s FDW interface to mount other external databases on the engine.</p>
+</div></blockquote>
+<ul className="simple">
 <li><p>Splitfile commands (<a className="reference internal" href="#module-splitgraph.hooks.splitfile_commands" title="splitgraph.hooks.splitfile_commands"><code className="xref py py-mod docutils literal notranslate"><span className="pre">splitgraph.hooks.splitfile_commands</span></code></a>) to define custom data transformation steps
 compatible with the Splitfile framework.</p></li>
 </ul>
@@ -95,91 +99,18 @@ signatures of the handler functions.</p>
 </div>
 <div className="section" id="module-splitgraph.hooks.mount_handlers">
 <span id="splitgraph-hooks-mount-handlers-module"></span><h2 id="splitgraphhooksmount_handlers-module">splitgraph.hooks.mount_handlers module<a className="headerlink" href="#module-splitgraph.hooks.mount_handlers" title="Permalink to this headline">¶</a></h2>
-<p>Hooks for additional handlers used to mount other databases via FDW. These handlers become available
-in the command line tool (via <cite>sgr mount</cite>) and in the Splitfile interpreter (via <cite>FROM MOUNT</cite>).</p>
-<dl className="py function">
-<dt id="splitgraph.hooks.mount_handlers.get_mount_handler">
-<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">get_mount_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em><span className="sig-paren">)</span> → Callable<a className="headerlink" href="#splitgraph.hooks.mount_handlers.get_mount_handler" title="Permalink to this definition">¶</a></dt>
-<dd><p>Returns a mount function for a given handler.
-The mount function must have a signature <cite>(mountpoint, server, port, username, password, handler_kwargs)</cite>.</p>
-</dd></dl>
-
-<dl className="py function">
-<dt id="splitgraph.hooks.mount_handlers.get_mount_handlers">
-<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">get_mount_handlers</code><span className="sig-paren">(</span><span className="sig-paren">)</span> → List<span className="p">[</span>str<span className="p">]</span><a className="headerlink" href="#splitgraph.hooks.mount_handlers.get_mount_handlers" title="Permalink to this definition">¶</a></dt>
-<dd><p>Returns the names of all registered mount handlers.</p>
-</dd></dl>
-
-<dl className="py function">
-<dt id="splitgraph.hooks.mount_handlers.init_fdw">
-<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">init_fdw</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">engine</span><span className="p">:</span> <span className="n">PostgresEngine</span></em>, <em className="sig-param"><span className="n">server_id</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">wrapper</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>Optional<span className="p">[</span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">user_options</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.init_fdw" title="Permalink to this definition">¶</a></dt>
-<dd><p>Sets up a foreign data server on the engine.</p>
-<dl className="field-list simple">
-<dt className="field-odd">Parameters</dt>
-<dd className="field-odd"><ul className="simple">
-<li><p><strong>engine</strong> – PostgresEngine</p></li>
-<li><p><strong>server_id</strong> – Name to call the foreign server, must be unique. Will be deleted if exists.</p></li>
-<li><p><strong>wrapper</strong> – Name of the foreign data wrapper (must be installed as an extension on the engine)</p></li>
-<li><p><strong>server_options</strong> – Dictionary of FDW options</p></li>
-<li><p><strong>user_options</strong> – Dictionary of user options</p></li>
-<li><p><strong>overwrite</strong> – If the server already exists, delete and recreate it.</p></li>
-</ul>
-</dd>
-</dl>
-</dd></dl>
-
+<p>Extra wrapper code for mount handlers</p>
 <dl className="py function">
 <dt id="splitgraph.hooks.mount_handlers.mount">
-<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_kwargs</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>str<span className="p">, </span>int<span className="p">, </span>None<span className="p">, </span>List<span className="p">[</span>str<span className="p">]</span><span className="p">, </span>Dict<span className="p">[</span>str<span className="p">, </span>Union<span className="p">[</span>Dict<span className="p">[</span>str<span className="p">, </span>str<span className="p">]</span><span className="p">, </span>str<span className="p">]</span><span className="p">]</span><span className="p">]</span><span className="p">]</span></span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount" title="Permalink to this definition">¶</a></dt>
-<dd><p>Mounts a foreign database via Postgres FDW (without creating new Splitgraph objects)</p>
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_handler</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">handler_kwargs</span><span className="p">:</span> <span className="n">Dict<span className="p">[</span>str<span className="p">, </span>Any<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">overwrite</span><span className="p">:</span> <span className="n">bool</span> <span className="o">=</span> <span className="default_value">True</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount" title="Permalink to this definition">¶</a></dt>
+<dd><p>Mounts a foreign database via an FDW (without creating new Splitgraph objects)</p>
 <dl className="field-list simple">
 <dt className="field-odd">Parameters</dt>
 <dd className="field-odd"><ul className="simple">
 <li><p><strong>mountpoint</strong> – Mountpoint to import the new tables into.</p></li>
-<li><p><strong>mount_handler</strong> – The type of the mounted database. Must be one of <cite>postgres_fdw</cite> or <cite>mongo_fdw</cite>.</p></li>
+<li><p><strong>mount_handler</strong> – The type of the mounted database.</p></li>
 <li><p><strong>handler_kwargs</strong> – Dictionary of options to pass to the mount handler.</p></li>
-</ul>
-</dd>
-</dl>
-</dd></dl>
-
-<dl className="py function">
-<dt id="splitgraph.hooks.mount_handlers.mount_mongo">
-<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_mongo</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">int</span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">table_spec</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_mongo" title="Permalink to this definition">¶</a></dt>
-<dd><p>Mount a Mongo database.</p>
-<p>Mounts one or more collections on a remote Mongo database as a set of foreign tables locally.
-</p>
-<dl className="field-list simple">
-<dt className="field-odd">Parameters</dt>
-<dd className="field-odd"><ul className="simple">
-<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
-<li><p><strong>server</strong> – Database hostname.</p></li>
-<li><p><strong>port</strong> – Port the Mongo server is running on.</p></li>
-<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
-<li><p><strong>password</strong> – Password for the read-only user.</p></li>
-<li><p><strong>table_spec</strong> – A dictionary of form <cite>&#38;lbrace;“table_name”: &#38;lbrace;“db”: &lt;dbname>, “coll”: &lt;collection>,
-“schema”: &#38;lbrace;“col1”: “type1”…&#38;rbrace;&#38;rbrace;&#38;rbrace;</cite>.</p></li>
-</ul>
-</dd>
-</dl>
-</dd></dl>
-
-<dl className="py function">
-<dt id="splitgraph.hooks.mount_handlers.mount_mysql">
-<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_mysql</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">int</span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">remote_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">List<span className="p">[</span>str<span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_mysql" title="Permalink to this definition">¶</a></dt>
-<dd><p>Mount a MySQL database.</p>
-<p>Mounts a schema on a remote MySQL database as a set of foreign tables locally.
-</p>
-<dl className="field-list simple">
-<dt className="field-odd">Parameters</dt>
-<dd className="field-odd"><ul className="simple">
-<li><p><strong>mountpoint</strong> – Schema to mount the remote into.</p></li>
-<li><p><strong>server</strong> – Database hostname.</p></li>
-<li><p><strong>port</strong> – Database port</p></li>
-<li><p><strong>username</strong> – A read-only user that the database will be accessed as.</p></li>
-<li><p><strong>password</strong> – Password for the read-only user.</p></li>
-<li><p><strong>remote_schema</strong> – Remote schema name.</p></li>
-<li><p><strong>tables</strong> – Tables to mount (default all).</p></li>
+<li><p><strong>overwrite</strong> – Delete the foreign server if it already exists. Used by mount_postgres for data pulls.</p></li>
 </ul>
 </dd>
 </dl>
@@ -187,7 +118,7 @@ The mount function must have a signature <cite>(mountpoint, server, port, userna
 
 <dl className="py function">
 <dt id="splitgraph.hooks.mount_handlers.mount_postgres">
-<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_postgres</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">server</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">port</span><span className="p">:</span> <span className="n">Union<span className="p">[</span>int<span className="p">, </span>str<span className="p">]</span></span></em>, <em className="sig-param"><span className="n">username</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">password</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">dbname</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">remote_schema</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">tables</span><span className="p">:</span> <span className="n">Optional<span className="p">[</span>List<span className="p">[</span>str<span className="p">]</span><span className="p">]</span></span> <span className="o">=</span> <span className="default_value">None</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_postgres" title="Permalink to this definition">¶</a></dt>
+<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">mount_postgres</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">mountpoint</span></em>, <em className="sig-param"><span className="o">**</span><span className="n">kwargs</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.mount_postgres" title="Permalink to this definition">¶</a></dt>
 <dd><p>Mount a Postgres database.</p>
 <p>Mounts a schema on a remote Postgres database as a set of foreign tables locally.
 </p>
@@ -201,16 +132,12 @@ The mount function must have a signature <cite>(mountpoint, server, port, userna
 <li><p><strong>password</strong> – Password for the read-only user.</p></li>
 <li><p><strong>dbname</strong> – Remote database name.</p></li>
 <li><p><strong>remote_schema</strong> – Remote schema name.</p></li>
-<li><p><strong>tables</strong> – Tables to mount (default all).</p></li>
+<li><p><strong>extra_server_args</strong> – Dictionary of extra arguments to pass to the foreign server</p></li>
+<li><p><strong>tables</strong> – Tables to mount (default all). If a list, then will use IMPORT FOREIGN SCHEMA.</p></li>
 </ul>
 </dd>
 </dl>
-</dd></dl>
-
-<dl className="py function">
-<dt id="splitgraph.hooks.mount_handlers.register_mount_handler">
-<code className="sig-prename descclassname">splitgraph.hooks.mount_handlers.</code><code className="sig-name descname">register_mount_handler</code><span className="sig-paren">(</span><em className="sig-param"><span className="n">name</span><span className="p">:</span> <span className="n">str</span></em>, <em className="sig-param"><span className="n">mount_function</span><span className="p">:</span> <span className="n">Callable</span></em><span className="sig-paren">)</span> → None<a className="headerlink" href="#splitgraph.hooks.mount_handlers.register_mount_handler" title="Permalink to this definition">¶</a></dt>
-<dd><p>Returns a mount function under a given name. See <cite>get_mount_handler</cite> for the mount handler spec.</p>
+<p>If a dictionary, must have the format &#38;lbrace;“table_name”: &#38;lbrace;“col_1”: “type_1”, …&#38;rbrace;&#38;rbrace;.</p>
 </dd></dl>
 
 </div>
diff --git a/content/docs/9500_python-api/splitgraph.mdx b/content/docs/9500_python-api/splitgraph.mdx
index 01159f97..30cc657c 100644
--- a/content/docs/9500_python-api/splitgraph.mdx
+++ b/content/docs/9500_python-api/splitgraph.mdx
@@ -95,6 +95,13 @@ export const meta = {
 <p>Errors related to checking out/committing repositories</p>
 </dd></dl>
 
+<dl className="py exception">
+<dt id="splitgraph.exceptions.DataSourceError">
+<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">DataSourceError</code><a className="headerlink" href="#splitgraph.exceptions.DataSourceError" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
+<p>Exceptions raised by mount handlers.</p>
+</dd></dl>
+
 <dl className="py exception">
 <dt id="splitgraph.exceptions.DockerUnavailableError">
 <em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">DockerUnavailableError</code><a className="headerlink" href="#splitgraph.exceptions.DockerUnavailableError" title="Permalink to this definition">¶</a></dt>
@@ -169,13 +176,6 @@ The handler is supposed to perform any necessary
 cleanup and reraise <cite>reason</cite> at the earliest opportunity.</p>
 </dd></dl>
 
-<dl className="py exception">
-<dt id="splitgraph.exceptions.MountHandlerError">
-<em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">MountHandlerError</code><a className="headerlink" href="#splitgraph.exceptions.MountHandlerError" title="Permalink to this definition">¶</a></dt>
-<dd><p>Bases: <a className="reference internal" href="#splitgraph.exceptions.SplitGraphError" title="splitgraph.exceptions.SplitGraphError"><code className="xref py py-class docutils literal notranslate"><span className="pre">splitgraph.exceptions.SplitGraphError</span></code></a></p>
-<p>Exceptions raised by mount handlers.</p>
-</dd></dl>
-
 <dl className="py exception">
 <dt id="splitgraph.exceptions.ObjectCacheError">
 <em className="property">exception </em><code className="sig-prename descclassname">splitgraph.exceptions.</code><code className="sig-name descname">ObjectCacheError</code><a className="headerlink" href="#splitgraph.exceptions.ObjectCacheError" title="Permalink to this definition">¶</a></dt>