perf(transaction): avoid O(n*m) fragment compares in build_manifest for Update/Delete - #8210
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Xuanwo merged 1 commit intoAug 4, 2026
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✅ Gate recommendation: approve.
The change removes the reachable quadratic scans while preserving manifest ordering, removal precedence, and the two paths’ existing duplicate-ID behavior. Keyed borrowed lookups are preferable to a sort/merge rewrite here because transaction change vectors are unordered and the current design stays linear without changing persistent formats.
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Thanks for your help! @Xuanwo |
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Closes: #8209