fix(db): like not matching newline characters

[ldirer]

Summary

Fix like/ilike operators not matching newline characters with % or _ wildcards. SQL LIKE semantics treat % as matching any sequence of characters (including newlines) and _ as matching any single character (including newlines), but JavaScript's RegExp . does not match newline characters by default.

Root Cause

The evaluateLike function converts SQL LIKE patterns to JavaScript regex (% → .*, _ → .), but . in JS regex doesn't match line terminators (\n, \r, \u2028, \u2029) unless the s (dotAll) flag is set. This meant any field value containing a newline would fail to match patterns that should logically match it.

Approach

Add the s (dotAll) flag to the RegExp constructor in both copies of evaluateLike:

// Before
const regex = new RegExp(`^${regexPattern}$`)

// After — dotAll flag so '.' matches newline characters (SQL LIKE semantics)
const regex = new RegExp(`^${regexPattern}$`, `s`)

The fix is applied in two locations:

• packages/db/src/query/compiler/evaluators.ts — the core runtime
• packages/query-db-collection/e2e/query-filter.ts — the e2e test helper (duplicated logic)

Verification

pnpm vitest run packages/db/tests/query/compiler/evaluators.test.ts

All 180 evaluator tests pass (90 per copy), including 4 new tests covering like and ilike with % and _ against newline characters.

Files Changed

File	Change
packages/db/src/query/compiler/evaluators.ts	Add s (dotAll) flag to RegExp
packages/query-db-collection/e2e/query-filter.ts	Same fix in duplicated e2e helper
packages/db/tests/query/compiler/evaluators.test.ts	Add 4 unit tests for like/ilike newline matching
packages/db-collection-e2e/src/fixtures/seed-data.ts	Add seed user with newline in name
packages/db-collection-e2e/src/suites/predicates.suite.ts	Add e2e test for like with newline
.changeset/nice-months-nail.md	Patch changeset for @tanstack/db

---

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🦋 Changeset detected

Latest commit: 90eea96

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 12 packages

Name	Type
@tanstack/db	Patch
@tanstack/angular-db	Patch
@tanstack/electric-db-collection	Patch
@tanstack/offline-transactions	Patch
@tanstack/powersync-db-collection	Patch
@tanstack/query-db-collection	Patch
@tanstack/react-db	Patch
@tanstack/rxdb-db-collection	Patch
@tanstack/solid-db	Patch
@tanstack/svelte-db	Patch
@tanstack/trailbase-db-collection	Patch
@tanstack/vue-db	Patch

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commit: 90eea96

[KyleAMathews]

Thanks for the fix!

[github-actions]

🎉 This PR has been released!

• @tanstack/db@0.5.27

Thank you for your contribution!