Commit Graph

6 Commits

Author SHA1 Message Date
David Overton
9921823915 GDC-189 custom aggregations
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## Description
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This PR allows DC agents to define custom aggregate functions for their scalar types.

### Related Issues
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GDC-189

### Solution and Design
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We added a new property `aggregate_functions` to the scalar types capabilities. This allows the agent author to specify a set of aggregate functions supported by each scalar type, along with the function's result type.

During GraphQL schema generation, the custom aggregate functions are available via a new method `getCustomAggregateOperators` on the `Backend` type class.
Custom functions are merged with the builtin aggregate functions when building GraphQL schemas for table aggregate fields and for `order_by` operators on array relations.

### Steps to test and verify
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• Codec tests for aggregate function capabilities have been added to the unit tests.
• Some custom aggregate operators have been added to the reference agent and are used in a new test in `api-tests`.

PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6199
GitOrigin-RevId: e9c0d1617af93847c1493671fdbb794f573bde0c
2022-10-27 00:44:06 +00:00
Philip Lykke Carlsen
d43a30e8fc feat(tests): Introduce AggregationPredicatesSpec
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5686
GitOrigin-RevId: 85b39ad569180929e5620c45bf9a98ef6ee99d42
2022-09-07 12:10:52 +00:00
David Overton
f4419236ed Gdc capabilities scalar types - GDW-87
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5597
GitOrigin-RevId: 4f561bf476266955d7b1d3dbca4d406a97bf8b34
2022-09-06 04:26:03 +00:00
Daniel Chambers
c1380e1daf server: Data Connectors aggregation agent API contract [GDW-95]
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5069
GitOrigin-RevId: acd80975c162935d5594e55db47228cf689e5fd7
2022-07-20 05:21:54 +00:00
Brandon Simmons
6e8da71ece server: migrate to aeson-2 in preparation for ghc 9.2 upgrade
(Work here originally done by awjchen, rebased and fixed up for merge by
jberryman)

This is part of a merge train towards GHC 9.2 compatibility. The main
issue is the use of the new abstract `KeyMap` in 2.0. See:
https://hackage.haskell.org/package/aeson-2.0.3.0/changelog

Alex's original work is here:
#4305

BEHAVIOR CHANGE NOTE: This change causes a different arbitrary ordering
of serialized Json, for example during metadata export. CLI users care
about this in particular, and so we need to call it out as a _behavior
change_ as we did in v2.5.0. The good news though is that after this
change ordering should be more stable (alphabetical key order).

See: https://hasurahq.slack.com/archives/C01M20G1YRW/p1654012632634389

PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4611
Co-authored-by: awjchen <13142944+awjchen@users.noreply.github.com>
GitOrigin-RevId: 700265162c782739b2bb88300ee3cda3819b2e87
2022-06-08 15:32:27 +00:00
David Overton
44577dab1b Add ToSchema instances to GDW API types
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4006
Co-authored-by: Daniel Chambers <1214352+daniel-chambers@users.noreply.github.com>
GitOrigin-RevId: 756ca0ed60865d0eb675562e8959f0d1839f9abe
2022-03-31 04:46:08 +00:00