dev/report#31 - Api4 Explorer: Support SQL functions and HAVING clause

[colemanw]

Overview

This adds UI support for new APIv4 features. Sql functions and aliases are now available in the API explorer, as is the HAVING clause.

See also: https://lab.civicrm.org/dev/report/-/issues/31

Before

UI didn't show new features.

After

UI updated.

Technical Details

Includes tests for loading SQL function metadata.

[civibot]

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[eileenmcnaughton]

Only affects apiv4 explorer so this should be safe

[totten]

r-explain: The descriptions on #17047 and #16947 are rather... thin... given what's going on here. Is there a Gitlab issue or docs PR that should be referenced?

[totten]

OK, I found+hyperlinked the related Gitlab issue. It doesn't talk much about what's going on here.

Probably most of the r-explain/r-docs problem I'm sensing is more about the earlier PR (#16947). For this PR and the API explorer, one might just do some screenshots of the updated UI...

[eileenmcnaughton]

To some extent the explorer update IS the documentation of the earlier change - however @colemanw you had better also do a docs update on new apiv4 capabilities

Test fail unrelated