errctx, types, sessionctx: avoid memory allocation in HandleError and reduce allocation in creation of statement context
#49280
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Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## master #49280 +/- ##
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+ Coverage 71.0490% 71.9498% +0.9008%
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Files 1368 1409 +41
Lines 402149 416358 +14209
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+ Hits 285723 299569 +13846
- Misses 96553 97939 +1386
+ Partials 19873 18850 -1023
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tangenta
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Signed-off-by: Yang Keao <yangkeao@chunibyo.icu>
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: lcwangchao, tangenta The full list of commands accepted by this bot can be found here. The pull request process is described here
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What problem does this PR solve?
Issue Number: close #49277
Problem Summary:
We use a function closure to represent the function used to append warning, which actually creates a struct on heap to store the closure. A smaller example can be found in #49277 . Here I try to use an interface to remove this memory allocation.
What changed and how does it work?
Use an interface rather than the closure to reduce the memory allocation.
Before:
After:
It doesn't allocate heap memory anymore, which will be even more helpful when the GC pressure is heavy.
Check List
Tests
Release note