⚡ [performance improvement] Batch computeUndoValue calculations - #439
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Replaced the sequential `for...of` loop over `affectedCells` with `Promise.all` and `Array.prototype.map` in WasmDatabaseEngine.ts. This allows `computeUndoValue` calculations to be executed concurrently.
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The first draft only listed this session's PRs (#457+). main had ~20 more unreleased PRs merged after the v1.5.2 tag (#428–#456) that were never changelogged — fixes (#456 rowid validation, #453 data masking), a security fix (#449 crypto savepoint names), perf (#443, #439, #440), refactors, tests, and dep bumps. Entry now reflects the full v1.5.2..HEAD range. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* chore: release 1.5.3 Maintenance release covering everything merged since 1.5.2: internal code-health, expanded unit-test coverage, and dev-dependency bumps. No user-facing behavior change; error logging now routes to the SQLite Explorer output channel. package.json version + CHANGELOG only — package-lock.json left at 1.5.2 per the project's lockfile-drift convention. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * docs(changelog): expand 1.5.3 to cover all PRs since v1.5.2 The first draft only listed this session's PRs (#457+). main had ~20 more unreleased PRs merged after the v1.5.2 tag (#428–#456) that were never changelogged — fixes (#456 rowid validation, #453 data masking), a security fix (#449 crypto savepoint names), perf (#443, #439, #440), refactors, tests, and dep bumps. Entry now reflects the full v1.5.2..HEAD range. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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💡 What:
Replaced the sequential
for...ofloop overaffectedCellswithPromise.allandArray.prototype.mapinWasmDatabaseEngine.undoCellUpdate.🎯 Why:
computeUndoValueis asynchronous and its calls are independent. Awaiting them sequentially inside a loop introduces a severe N+1 latency penalty when many cells are updated simultaneously (e.g., during paste or multi-select undo operations). Running them concurrently speeds up the operation.📊 Measured Improvement:
When undoing an update with 1,000 cells via a benchmark script (
benchmark_undo.ts), execution time improved from ~1155.12ms sequentially to ~9.31ms withPromise.all.PR created automatically by Jules for task 18189937602611870422 started by @zknpr