*: use pdqsort to improve sort performance #34404
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Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/c7356a330d97873da686f36b08be5974d3954ea1 |
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I find the latest revive can find more problems in the repo. I will spend much time to fix them. |
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This pull request has been accepted and is ready to merge. Commit hash: d256d76aab21f2f2cf98aac0d373c627b2fbcf61
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Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com>
Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com>
Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com>
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TiDB MergeCI notify✅ Well Done! New fixed [1] after this pr merged.
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* upstream/master: (77 commits) infoschema: add a simply store for DM's SchemaTracker (pingcap#35954) planner: refactor "access object" related logic and prepare for binary plan (pingcap#35890) telemetry: Initialize telemetry asynchronously (pingcap#35898) sessionctx/variable: convert TiDBLogFileMaxDays and TiDBConfig to ScopeInstance (pingcap#35733) session, sessionctx/variable: ensure sysvars are always in lower case (pingcap#35659) *: add telemetry support for multi-schema change (pingcap#35977) topsql: compress plan instead of dropping it (pingcap#35973) *: use pdqsort to improve sort performance (pingcap#34404) ddl: refine GetDDLInfo function (pingcap#35969) *: Make the code cleaner in session.ExecutePreparedStmt (pingcap#35943) ddl: remove `onDropIndexes` (pingcap#35960) ddl: refine history job code (pingcap#35967) sessionctx,kv,planner: add system variable for fine_grained_shuffle (pingcap#35256) *: change remote cache (pingcap#35968) *: enable gosec (pingcap#35873) plancodec: fix a miss case in conversion (pingcap#35957) ddl: support drop indexes for multi-schema change (pingcap#35883) pdutil: fix unstable test TestPauseSchedulersByKeyRange (pingcap#35949) br: optimize communication with tikv stores. pingcap#31722 (pingcap#35147) txn: rename snapshot related methods in txnManager. (pingcap#35912) ...
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What problem does this PR solve?
Issue Number: close #34250
Problem Summary:
What is changed and how it works?
github.com/cznic/sortutilBTW, it is not only improved performance by using the pdqsort, but also it can remove BCE by the using generics to improve performance.
Check List
Tests
Release note
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