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fix(hogql): Allow chaining for lazy tables #28253

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merged 10 commits into from
Feb 4, 2025
Merged

fix(hogql): Allow chaining for lazy tables #28253

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36ba7bd
Attempt at a failing test case
danielbachhuber Feb 4, 2025
2a3f445
Revert "Attempt at a failing test case"
danielbachhuber Feb 4, 2025
510e0a0
Failing test cases for linear and nested joins
danielbachhuber Feb 4, 2025
0245707
Merge branch 'master' into hogql/lazy-chaining-fix
danielbachhuber Feb 4, 2025
92a9704
Add test cases for the succeeding scenarios
danielbachhuber Feb 4, 2025
aafcc0f
Field fixes
danielbachhuber Feb 4, 2025
8e2dd3c
Properly persist full left and right chain for compare eq
danielbachhuber Feb 4, 2025
2d10c40
Add trends test case for 8e2dd3cc289fd9dd98b84fd196393053b7a27c6d
danielbachhuber Feb 4, 2025
c9ffd21
Fix timestamp expression
danielbachhuber Feb 4, 2025
2286034
Drop test we don't actually want to support
danielbachhuber Feb 4, 2025
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175 changes: 175 additions & 0 deletions posthog/hogql/database/test/test_database.py
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Original file line number Diff line number Diff line change
Expand Up @@ -707,3 +707,178 @@ def test_database_warehouse_person_id_field_with_events_join(self):
assert person_id_field.chain == ["events_data", "person_id"]

print_ast(parse_select("SELECT person_id FROM warehouse_table"), context, dialect="clickhouse")

def test_database_warehouse_resolve_field_through_linear_joins_basic_join(self):
credentials = DataWarehouseCredential.objects.create(
access_key="test_key", access_secret="test_secret", team=self.team
)

DataWarehouseTable.objects.create(
team=self.team,
name="subscriptions",
columns={
"id": "String",
"created_at": "DateTime64(3, 'UTC')",
"customer_id": "String",
},
credential=credentials,
url_pattern="s3://test/*",
format=DataWarehouseTable.TableFormat.Parquet,
)

DataWarehouseTable.objects.create(
team=self.team,
name="customers",
columns={
"id": "String",
"email": "String",
},
credential=credentials,
url_pattern="s3://test/*",
format=DataWarehouseTable.TableFormat.Parquet,
)

DataWarehouseJoin.objects.create(
team=self.team,
source_table_name="subscriptions",
source_table_key="customer_id",
joining_table_name="customers",
joining_table_key="id",
field_name="customer",
)

DataWarehouseJoin.objects.create(
team=self.team,
source_table_name="customers",
source_table_key="email",
joining_table_name="events",
joining_table_key="person.properties.email",
field_name="events",
)

db = create_hogql_database(team_id=self.team.pk)

context = HogQLContext(
team_id=self.team.pk,
enable_select_queries=True,
database=db,
)

print_ast(parse_select("SELECT customer.events.distinct_id FROM subscriptions"), context, dialect="clickhouse")

def test_database_warehouse_resolve_field_through_nested_joins_basic_join(self):
credentials = DataWarehouseCredential.objects.create(
access_key="test_key", access_secret="test_secret", team=self.team
)

DataWarehouseTable.objects.create(
team=self.team,
name="subscriptions",
columns={
"id": "String",
"created_at": "DateTime64(3, 'UTC')",
"customer_id": "String",
},
credential=credentials,
url_pattern="s3://test/*",
format=DataWarehouseTable.TableFormat.Parquet,
)

DataWarehouseTable.objects.create(
team=self.team,
name="customers",
columns={
"id": "String",
"email": "String",
},
credential=credentials,
url_pattern="s3://test/*",
format=DataWarehouseTable.TableFormat.Parquet,
)

DataWarehouseJoin.objects.create(
team=self.team,
source_table_name="subscriptions",
source_table_key="customer_id",
joining_table_name="customers",
joining_table_key="id",
field_name="customer",
)

DataWarehouseJoin.objects.create(
team=self.team,
source_table_name="subscriptions",
source_table_key="customer.email",
joining_table_name="events",
joining_table_key="person.properties.email",
field_name="events",
)

db = create_hogql_database(team_id=self.team.pk)

context = HogQLContext(
team_id=self.team.pk,
enable_select_queries=True,
database=db,
)

print_ast(parse_select("SELECT events.distinct_id FROM subscriptions"), context, dialect="clickhouse")

def test_database_warehouse_resolve_field_through_nested_joins_experiments_optimized_events_join(self):
credentials = DataWarehouseCredential.objects.create(
access_key="test_key", access_secret="test_secret", team=self.team
)

DataWarehouseTable.objects.create(
team=self.team,
name="subscriptions",
columns={
"id": "String",
"created_at": "DateTime64(3, 'UTC')",
"customer_id": "String",
},
credential=credentials,
url_pattern="s3://test/*",
format=DataWarehouseTable.TableFormat.Parquet,
)

DataWarehouseTable.objects.create(
team=self.team,
name="customers",
columns={
"id": "String",
"email": "String",
},
credential=credentials,
url_pattern="s3://test/*",
format=DataWarehouseTable.TableFormat.Parquet,
)

DataWarehouseJoin.objects.create(
team=self.team,
source_table_name="subscriptions",
source_table_key="customer_id",
joining_table_name="customers",
joining_table_key="id",
field_name="customer",
)

DataWarehouseJoin.objects.create(
team=self.team,
source_table_name="subscriptions",
source_table_key="customer.email",
joining_table_name="events",
joining_table_key="person.properties.email",
field_name="events",
configuration={"experiments_optimized": True, "experiments_timestamp_key": "created_at"},
)

db = create_hogql_database(team_id=self.team.pk)

context = HogQLContext(
team_id=self.team.pk,
enable_select_queries=True,
database=db,
)

print_ast(parse_select("SELECT events.distinct_id FROM subscriptions"), context, dialect="clickhouse")
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