Support nulleq for IndexJoin and IndexHashJoin

[gengliqi]

What problem does this PR solve?

Issue Number: close #66016

Problem Summary:

What changed and how does it work?

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

[ti-chi-bot]

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[tiprow]

Hi @gengliqi. Thanks for your PR.

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[gengliqi]

/cc @winoros
/cc @windtalker

[codecov]

Codecov Report

❌ Patch coverage is 80.43478% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.6480%. Comparing base (5da8f9a) to head (467067f).
⚠️ Report is 20 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #66017        +/-   ##
================================================
- Coverage   77.7737%   77.6480%   -0.1257%     
================================================
  Files          2001       2001                
  Lines        545633     551572      +5939     
================================================
+ Hits         424359     428285      +3926     
- Misses       119611     121625      +2014     
+ Partials       1663       1662         -1     

Flag	Coverage Δ
unit	76.4047% <80.4347%> (-0.0055%)	⬇️

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

Components	Coverage Δ
dumpling	56.7974% <ø> (ø)
parser	∅ <ø> (∅)
br	60.9765% <ø> (-0.0095%)	⬇️

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[ti-chi-bot]

[FORMAT CHECKER NOTIFICATION]

Notice: To remove the do-not-merge/invalid-title label, please follow title format, for example pkg [, pkg2, pkg3]: what is changed or *: what is changed.

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[ti-chi-bot]

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

Test name	Commit	Details	Required	Rerun command
idc-jenkins-ci-tidb/check_dev_2	467067f	link	true	/test check-dev2
idc-jenkins-ci-tidb/check_dev	467067f	link	true	/test check-dev

Full PR test history. Your PR dashboard.

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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. I understand the commands that are listed here.