David Overton 346804fc67 Support nested object fields in DC API and use this to implement nest… ... ## Description This change adds support for nested object fields in HGE IR and Schema Cache, the Data Connectors backend and API, and the MongoDB agent. ### Data Connector API changes - The `/schema` endpoint response now includes an optional set of GraphQL type definitions. Table column types can refer to these definitions by name. - Queries can now include a new field type `object` which contains a column name and a nested query. This allows querying into a nested object within a field. ### MongoDB agent changes - Add support for querying into nested documents using the new `object` field type. ### HGE changes - The `Backend` type class has a new type family `XNestedObjects b` which controls whether or not a backend supports querying into nested objects. This is currently enabled only for the `DataConnector` backend. - For backends that support nested objects, the `FieldInfo` type gets a new constructor `FINestedObject`, and the `AnnFieldG` type gets a new constructor `AFNestedObject`. - If the DC `/schema` endpoint returns any custom GraphQL type definitions they are stored in the `TableInfo` for each table in the source. - During schema cache building, the function `addNonColumnFields` will check whether any column types match custom GraphQL object types stored in the `TableInfo`. If so, they are converted into `FINestedObject` instead of `FIColumn` in the `FieldInfoMap`. - When building the `FieldParser`s from `FieldInfo` (function `fieldSelection`) any `FINestedObject` fields are converted into nested object parsers returning `AFNestedObject`. - The `DataConnector` query planner converts `AFNestedObject` fields into `object` field types in the query sent to the agent. ## Limitations ### HGE not yet implemented: - Support for nested arrays - Support for nested objects/arrays in mutations - Support for nested objects/arrays in order-by - Support for filters (`where`) in nested objects/arrays - Support for adding custom GraphQL types via track table metadata API - Support for interface and union types - Tests for nested objects ### Mongo agent not yet implemented: - Generate nested object types from validation schema - Support for aggregates - Support for order-by - Configure agent port - Build agent in CI - Agent tests for nested objects and MongoDB agent PR-URL: https://github.com/hasura/graphql-engine-mono/pull/7844 GitOrigin-RevId: aec9ec1e4216293286a68f9b1af6f3f5317db423		2023-04-11 01:30:37 +00:00
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BoolExp	server: delete the Cacheable type class in favor of Eq	2022-11-21 16:35:37 +00:00
Update	Refactor Update IR to generalize Update vs Update Many across backends - compositional approach [GDC-687]	2023-01-10 01:56:14 +00:00
Action.hs	Remove strictness annotations from data types in the Hasura.RQL hierarchy	2022-08-01 09:33:35 +00:00
BoolExp.hs	chore(server): move user-defined-functions into Hasura.Function.*	2023-04-03 10:20:20 +00:00
Conflict.hs	server: Improve code readability around OnConflict clauses	2021-12-20 11:16:46 +00:00
Delete.hs	Simplify instance boilerplate	2022-08-11 16:32:41 +00:00
Insert.hs	Enhance insert table schema with extra info and remove need for cached schema usage in Super Connector mutations	2023-04-05 02:23:20 +00:00
OrderBy.hs	Remove strictness annotations from data types in the Hasura.RQL hierarchy	2022-08-01 09:33:35 +00:00
RemoteSchema.hs	Show RQL IR Select	2023-01-04 08:29:43 +00:00
Returning.hs	Simplify instance boilerplate	2022-08-11 16:32:41 +00:00
Root.hs	chore(server): move some query tags code to a sensible place	2023-03-30 21:19:38 +00:00
Select.hs	Support nested object fields in DC API and use this to implement nest…	2023-04-11 01:30:37 +00:00
Update.hs	Refactor Update IR to generalize Update vs Update Many across backends - compositional approach [GDC-687]	2023-01-10 01:56:14 +00:00
Value.hs	server: switch to ghc 9.2 (2nd try)	2022-10-06 09:09:01 +00:00