planner: support recommend index set <opt>=<val>

[qw4990]

What problem does this PR solve?

Issue Number: ref #12303

Problem Summary: planner: support recommend index set <opt>=<val>

What changed and how does it work?

planner: support recommend index set <opt>=<val>

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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[codecov]

Codecov Report

Attention: Patch coverage is 73.21429% with 45 lines in your changes missing coverage. Please review.

Project coverage is 75.3866%. Comparing base (ad68216) to head (cb0e5be).
Report is 4 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #56249        +/-   ##
================================================
+ Coverage   73.4166%   75.3866%   +1.9699%     
================================================
  Files          1601       1602         +1     
  Lines        443902     446846      +2944     
================================================
+ Hits         325898     336862     +10964     
+ Misses        98053      89499      -8554     
- Partials      19951      20485       +534     

Flag	Coverage Δ
integration	49.0175% <0.0000%> (?)
unit	72.4680% <73.2142%> (-0.0096%)	⬇️

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

Components	Coverage Δ
dumpling	52.9478% <ø> (ø)
parser	∅ <ø> (∅)
br	52.8811% <ø> (+6.9915%)	⬆️

[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/planner/OWNERS [AilinKid,hawkingrei]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-09-24 07:33:50.968877797 +0000 UTC m=+1551300.709301737: ☑️ agreed by AilinKid.
• 2024-09-24 07:36:19.045391768 +0000 UTC m=+1551448.785815707: ☑️ agreed by hawkingrei.