planner: refactor some code of binding cache

[qw4990]

What problem does this PR solve?

Issue Number: ref #51347

Problem Summary: planner: refactor some code of binding cache

What changed and how does it work?

planner: refactor some code of binding cache

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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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-23 03:24:36.57068058 +0000 UTC m=+1445666.659483123: ☑️ agreed by hawkingrei.
• 2024-12-23 03:40:56.359159717 +0000 UTC m=+1446646.447962259: ☑️ agreed by AilinKid.

[codecov]

Codecov Report

Attention: Patch coverage is 94.11765% with 1 line in your changes missing coverage. Please review.

Project coverage is 74.6219%. Comparing base (d0ea9e5) to head (5cc34b2).
Report is 6 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #58456        +/-   ##
================================================
+ Coverage   73.5240%   74.6219%   +1.0978%     
================================================
  Files          1681       1696        +15     
  Lines        463969     464960       +991     
================================================
+ Hits         341129     346962      +5833     
+ Misses       101997      96455      -5542     
- Partials      20843      21543       +700     

Flag	Coverage Δ
integration	46.3328% <94.1176%> (?)
unit	72.2883% <94.1176%> (+0.0010%)	⬆️

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	61.6313% <ø> (+15.8599%)	⬆️

[hawkingrei]

/retest

[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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Needs approval from an approver in each of these files:

• OWNERS [AilinKid,hawkingrei]
• pkg/bindinfo/OWNERS [AilinKid,hawkingrei]

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[tiprow]

@qw4990: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
fast_test_tiprow	5cc34b2	link	true	/test fast_test_tiprow

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[qw4990]

/test unit-test

[tiprow]

@qw4990: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

• /test fast_test_tiprow
• /test fast_test_tiprow_ddlargsv1
• /test tidb_parser_test

Use /test all to run the following jobs that were automatically triggered:

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• tidb_parser_test

In response to this:

/test unit-test

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[qw4990]

/test check-dev2

[tiprow]

@qw4990: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

• /test fast_test_tiprow
• /test fast_test_tiprow_ddlargsv1
• /test tidb_parser_test

Use /test all to run the following jobs that were automatically triggered:

• fast_test_tiprow
• tidb_parser_test

In response to this:

/test check-dev2

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.