planner: refactor some code of the binding package

[qw4990]

What problem does this PR solve?

Issue Number: ref #48875

Problem Summary: planner: refactor some code of the binding package

What changed and how does it work?

planner: refactor some code of the binding package

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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[wuhuizuo]

/test ?

[ti-chi-bot]

@wuhuizuo: The following commands are available to trigger required jobs:

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[tiprow]

@wuhuizuo: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

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[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:

• 2023-12-01 07:44:38.569839905 +0000 UTC m=+1167907.235066100: ☑️ agreed by AilinKid.
• 2023-12-01 07:54:19.649959584 +0000 UTC m=+1168488.315185779: ☑️ agreed by hawkingrei.

[qw4990]

/retest

[tiprow]

@qw4990: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

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/retest

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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
tiprow_fast_test	7346a76	link	true	/test tiprow_fast_test

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[codecov]

Codecov Report

Merging #49093 (af658c3) into master (3093057) will increase coverage by 1.2580%.
Report is 1 commits behind head on master.
The diff coverage is 63.6363%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #49093        +/-   ##
================================================
+ Coverage   70.9969%   72.2549%   +1.2579%     
================================================
  Files          1368       1397        +29     
  Lines        403547     412293      +8746     
================================================
+ Hits         286506     297902     +11396     
+ Misses        97092      95585      -1507     
+ Partials      19949      18806      -1143     

Flag	Coverage Δ
integration	43.5853% <63.6363%> (?)
unit	70.9944% <ø> (-0.0025%)	⬇️

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

Components	Coverage Δ
dumpling	53.9663% <ø> (ø)
parser	∅ <ø> (∅)
br	48.3541% <ø> (-4.6181%)	⬇️