fix(db): align virtual row field types with runtime - #1865
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KyleAMathews wants to merge 5 commits into
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Included review availability: Your plan provides up to 8 included reviews per hour; 7 remain after this review. 📝 WalkthroughWalkthroughThe change limits virtual row fields to collection and query row roots. Nested objects and projected values retain plain shapes. Ref inference supports both root and nested refs. Type and runtime oracle tests cover these boundaries. ChangesVirtual row field boundaries
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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In `@packages/db/tests/query/virtual-row-fields-oracle.test.ts`:
- Around line 186-190: Update the non-row observation assertions in the loop
using hasVirtualProps so they individually verify that $key, $synced, $origin,
and $collectionId are absent from every observation.value classified as a
non-row, rather than relying only on the aggregate boolean check; preserve the
existing expectsVirtualFields assertion for row-value classification.
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packages/db/tests/query/virtual-row-fields-oracle.test-d.tspackages/db/tests/query/virtual-row-fields-oracle.test.ts
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# Conflicts: # packages/db/package.json
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Summary
Aligns virtual row field types with the runtime boundary:
$synced,$origin,$key, and$collectionIdremain available on published collection/query row roots, while nested user objects and inline projected child values retain their actual runtime shapes. It also preserves discriminated unions when virtual fields are removed and restores documented reusableRef<T>helpers for nested objects.Root cause
Four type paths described a broader or less compatible shape than runtime behavior:
WithoutVirtualProps<T>used non-distributiveOmit, which collapsed variant-only fields in discriminated row unions.Ref<T>andSingleRowRefProxy<T>recursively added virtual row fields to nested plain objects even though those objects are not independently published rows.toArray(...)andmaterialize(...)reused enriched query-result types, so selected object/array/find-one child values promised virtual fields that their embedded runtime values never receive.Approach
Ref<T>andSingleRowRefProxy<T>annotations metadata-agnostic and reusable for both roots and nested objects.Ref<Row, false, true>orSingleRowRefProxy<Row, Key, true>.toArray(...)/materialize(...)children now retain their undecorated projection types; no-select whole rows retain source metadata, and bare childQueryBuilderresults still become metadata-bearing child Collections.findOne; and opaqueDatevalues.Key invariants
Release impact
This is a minor changeset. Default
Ref<T>andSingleRowRefProxy<T>annotations now describe the reusable, metadata-agnostic shape. Existing helpers that specifically read$synced,$origin,$key, or$collectionIdshould opt into a required row root with the third generic parameter set totrue.Non-goals
.meta()API, or cursor replay behavior.Verification
Final complete campaign: 210 test files passed, 6,274 tests passed, and no type errors.
Hostile mutants verified that the oracles reject:
Dateand array child values;findOnematerialization.Files changed
virtual-props.ts: distributive virtual-field removal.@tanstack/db.Summary by CodeRabbit
Bug Fixes
Tests