planner: fix DATA RACE caused by initializing PointGet stats

[qw4990]

What problem does this PR solve?

Issue Number: close #43339.

close #49803

Problem Summary: planner: fix DATA RACE caused by initializing PointGet stats

What changed and how does it work?

planner: fix DATA RACE caused by initializing PointGet stats

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 @qw4990. Thanks for your PR.

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[hawkingrei]

/ok-to-test

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AilinKid, hawkingrei

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-05-30 07:26:10.75495469 +0000 UTC m=+2934124.512090264: ☑️ agreed by AilinKid.
• 2024-05-30 07:33:49.542139638 +0000 UTC m=+2934583.299275211: ☑️ agreed by hawkingrei.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 74.5554%. Comparing base (04c66ee) to head (845f744).
Report is 1 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #53676        +/-   ##
================================================
+ Coverage   74.4884%   74.5554%   +0.0670%     
================================================
  Files          1506       1506                
  Lines        357618     431035     +73417     
================================================
+ Hits         266384     321360     +54976     
- Misses        71857      89770     +17913     
- Partials      19377      19905       +528     

Flag	Coverage Δ
integration	49.2247% <50.0000%> (?)
unit	71.4486% <50.0000%> (-1.9187%)	⬇️

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

Components	Coverage Δ
dumpling	53.9957% <ø> (-2.3014%)	⬇️
parser	∅ <ø> (∅)
br	50.4453% <ø> (+6.8818%)	⬆️

[hawkingrei]

/retest

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #54346.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #55034.