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Vec::drain(..n) shifts remaining elements left (O(remaining)), which also extends Mutex hold time. VecDeque::drain(..n) is O(n_drained). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Vec<Change>withVecDeque<Change>inSharedTableQueue::changesandPendingDdl::post_changesVec::drain(..n)from the front is O(remaining) due to element shifting;VecDeque::drain(..n)is O(n_drained)Test plan
cargo check -p duckpipe-corepassesmake installcheck-- full regression suite🤖 Generated with Claude Code