fix(query-db-collection): preserve schema output in select - #1861
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Included review availability: Your plan provides up to 8 included reviews per hour; 5 remain after this review. 📝 WalkthroughWalkthroughThe schema-aware ChangesSchema Select Output Typing
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Inline comments:
In `@packages/query-db-collection/tests/query.test-d.ts`:
- Around line 548-552: Move the negative TypeScript assertion from the return
statement of selectSchemaInputRows to the queryCollectionOptions call that
passes this selector as the select callback. Keep the explicit Array<RowOutput>
return type, but ensure the `@ts-expect-error` validates that
queryCollectionOptions rejects the callback returning response.inputRows.
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packages/query-db-collection/tests/query.test-d.ts
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Fix
queryCollectionOptionsso wrapped responses work with transforming schemas. Selected rows now retain the schema output type while collection mutations continue to accept schema input.Root cause
The schema-plus-
selectoverload inheritedselectfromQueryCollectionConfigas an output-row selector, then intersected it with a second declaration returning schema input. That required transforming schemas to satisfy incompatible return types. The metadata-preserving select feature introduced this in #551, but its tests used schemas whose input and output were identical, so the intersection stayed invisible.Approach
selectproperty before redeclaring the specialized overload.InferSchemaOutput<T>, matching the rows that are written directly into synchronized collection state.string -> Datetype oracle covering wrapped response selection, output reads, input mutations, and an input-shaped hostile selector.Key invariants
selectmaterializes schema output rows.Non-goals
This does not introduce separate select/insert/update schemas or change direct
CollectionImplinference. Those are broader public API design questions.Trade-offs
Changing only the redeclared return type would compile today, but retaining two intersected
selectdeclarations could recreate the contradiction later. Omitting the base property makes the specialization explicit.Verification
Local results:
main, GREEN with the fix.git diff --checkpassed.Files changed
packages/query-db-collection/src/query.ts: make the schema-plus-select overload consistently output-typed.packages/query-db-collection/tests/query.test-d.ts: add exact transforming-schema contract coverage and hostile controls..changeset/fix-query-schema-select-output.md: record the patch-level fix.Summary by CodeRabbit