planner: refactor code of Global Binding

[qw4990]

What problem does this PR solve?

Issue Number: ref #51347

Problem Summary: planner: refactor code of Global Binding

What changed and how does it work?

Merge CrossDBBindingCache into BindingCache to simplify the code, no logical change, only refactor.

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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[Rustin170506]

Thanks!

/hold

Not sure if we need to add the comment back.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, Rustin170506

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-20 06:51:55.531267414 +0000 UTC m=+1198905.620069952: ☑️ agreed by hawkingrei.
• 2024-12-20 07:09:11.982575706 +0000 UTC m=+1199942.071378249: ☑️ agreed by Rustin170506.

[qw4990]

/unhold

[codecov]

Codecov Report

Attention: Patch coverage is 85.71429% with 16 lines in your changes missing coverage. Please review.

Project coverage is 73.7079%. Comparing base (0f653f3) to head (6e937a7).
Report is 8 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #58429        +/-   ##
================================================
+ Coverage   73.5667%   73.7079%   +0.1411%     
================================================
  Files          1681       1681                
  Lines        463825     464840      +1015     
================================================
+ Hits         341221     342624      +1403     
+ Misses       101785     101468       -317     
+ Partials      20819      20748        -71     

Flag	Coverage Δ
integration	43.2238% <74.1071%> (?)
unit	72.4974% <85.7142%> (+0.1714%)	⬆️

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	45.8192% <ø> (+0.0747%)	⬆️

[qw4990]

/test check-dev2

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[qw4990]

/test unit-test

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[qw4990]

/test unit-test

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[qw4990]

/test unit-test

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/test unit-test

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