execdetails: reduce mem allocs on RecordOneCopTask

[zyguan]

What problem does this PR solve?

Issue Number: ref #56649

Problem Summary: RecordOneCopTask constructs a new basicCopRuntimeStats and merge it, which is inefficient (introduce extra mem allocs).

What changed and how does it work?

Let it merge ExecutorExecutionSummary directly.

baseline:

this PR:

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[tiprow]

Hi @zyguan. Thanks for your PR.

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[codecov]

Codecov Report

Attention: Patch coverage is 92.75362% with 5 lines in your changes missing coverage. Please review.

Project coverage is 73.5944%. Comparing base (68ac9ec) to head (6873227).
Report is 71 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #58235        +/-   ##
================================================
+ Coverage   73.1841%   73.5944%   +0.4102%     
================================================
  Files          1675       1676         +1     
  Lines        461917     464875      +2958     
================================================
+ Hits         338050     342122      +4072     
+ Misses       103127     101921      -1206     
- Partials      20740      20832        +92     

Flag	Coverage Δ
integration	43.1976% <17.3913%> (?)
unit	72.3232% <92.7536%> (+0.0085%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	52.6910% <ø> (ø)
parser	∅ <ø> (∅)
br	45.9758% <ø> (+0.0150%)	⬆️

[zyguan]

/ok-to-test

[zyguan]

/retest

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: cfzjywxk, crazycs520

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-13 09:18:57.016463154 +0000 UTC m=+602927.105265692: ☑️ agreed by crazycs520.
• 2024-12-17 08:47:18.36093926 +0000 UTC m=+946628.449741803: ☑️ agreed by cfzjywxk.