executor, planner: add a smaller context for ToPB method

[YangKeao]

What problem does this PR solve?

Issue Number: close #52368

Problem Summary:

The PlanCtx is too big to call ToPB method. We can use a much smaller context for ToPB method.

What changed and how does it work?

Use a smaller struct to represent all information needed by the ToPB method call.

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.

  Should be covered by existing tests.

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

None

[codecov]

Codecov Report

Merging #52369 (bd3814d) into master (312b69f) will increase coverage by 2.1109%.
Report is 1 commits behind head on master.
The diff coverage is 86.3157%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #52369        +/-   ##
================================================
+ Coverage   72.2371%   74.3480%   +2.1109%     
================================================
  Files          1467       1467                
  Lines        426991     427079        +88     
================================================
+ Hits         308446     317525      +9079     
+ Misses        99430      89714      -9716     
- Partials      19115      19840       +725     

Flag	Coverage Δ
integration	48.7510% <56.8421%> (?)
unit	71.0016% <86.3157%> (-0.1267%)	⬇️

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

Components	Coverage Δ
dumpling	53.9957% <ø> (ø)
parser	∅ <ø> (∅)
br	49.7599% <ø> (+8.6346%)	⬆️

[ti-chi-bot]

PR needs rebase.

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[ti-chi-bot]

@YangKeao: 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
pull-br-integration-test	8cb5a20	link	true	/test pull-br-integration-test

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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Needs approval from an approver in each of these files:

• OWNERS [hawkingrei,lcwangchao]
• pkg/planner/OWNERS [hawkingrei]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-04-09 03:36:04.629897351 +0000 UTC m=+933426.157437892: ☑️ agreed by hawkingrei.
• 2024-04-10 04:03:00.804189412 +0000 UTC m=+1021442.331729954: ☑️ agreed by lcwangchao.