See PR #2523. Most notable code changes:
- Load data representation casts into schema cache.
- Data representations for reads, filters, inserts, updates, views, over joins.
- `CoercibleField` represents name references in queries where coercion may be needed.
- `ResolverContext` help facilitate field resolution during planning.
- Planner 'resolves' names in the API query and pairs them with any implicit conversions to be used in the query builder stage.
- Tests for all of the above.
- More consistent naming (TypedX -> CoercibleX).
New: unit tests for more data representation use cases; helpful as examples as well.
New: update CHANGELOG with data representations feature description.
Fixed failing idempotence test.
New: replace date formatter test with one that does something.
Fixup: inadvertent CHANGELOG change after rebase.
Cleanup: `tfName` -> `cfName` and related.
Document what IRType means.
Formatting.
New: use a subquery to interpret `IN` literals requiring data rep transformation.
- With the previous method, very long queries such as `ANY (ARRAY[test.color('000100'), test.color('CAFE12'), test.color('01E240'), ...` could be generated. Consider the case where the parser function name is 45 characters and there's a hundred literals. That's 4.5kB of SQL just for the function name alone!
- New version uses `unnest`: `ANY (SELECT test.color(unnest('{000100,CAFE12,01E240,...}'::text[]))` to produce a much shorter query.
- This is likely to be more performant and either way much more readable and debuggable in the logs.
The new LATERAL query used for calling the function, introduced on
https://github.com/PostgREST/postgrest/pull/2677, failed on functions
that returned a domain like `CREATE DOMAIN projects_domain AS projects`.
Work around that by changing the query conditionally, by
obtaining a bool that represents the composite alias on the SchemaCache
and only do this on pg 11 and 12.
This returns an error for trying to update or insert into invalid columns, without hitting the database. This change also switches from `json_populate_recordset` for these operations `json_to_recordset` which should make no functional difference except allowing future flexibility.
This was introduced in d5b92a433a. Before
this change, the OpenApi output would have <pk/> annotations for views,
too. After this change, they got lost for mode follow-privileges, because
the pks are refined in haskell code, but the request only fetches all
the tables again, but not the view dependencies.
This fix changes follow-privileges to only fetch a list of accessible
tables, which is then used to filter the tables in the schema cache.
Fixes#2356
Signed-off-by: Wolfgang Walther <walther@technowledgy.de>
This fixes a regression introduced in d2719420f4.
The order of relColumns in the schema cache is now consistently matching the order of columns in foreign key definitions.
Resolves#2518
Signed-off-by: Wolfgang Walther <walther@technowledgy.de>
