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planner: avoid alloc for paramMarker in buildValuesListOfInsert (#25996) #26076
planner: avoid alloc for paramMarker in buildValuesListOfInsert (#25996) #26076
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Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
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cherry-pick #25996 to release-5.1
You can switch your code base to this Pull Request by using git-extras:
# In tidb repo: git pr https://github.com/pingcap/tidb/pull/26076
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What problem does this PR solve?
Issue Number: close #25992
Problem Summary:
the issue can be handle by using planCache
but ParamMarker -> Constant rewrite should by more lightweight without alloc for each
?
What is changed and how it works?
What's Changed, How it Works:
shortcut expressionRewriter like
ValueExpr
Related changes
Check List
Tests
Side effects
Release note