planner: fix the issue that TIDB_INLJ hint cannot take effect when left joining two sub-queries (#46271)

[ti-chi-bot]

This is an automated cherry-pick of #46271

What problem does this PR solve?

Issue Number: close #46160

Problem Summary: planner: fix the issue that TIDB_INLJ hint cannot take effect when left joining two sub-queries

What is changed and how it works?

planner: fix the issue that TIDB_INLJ hint cannot take effect when left joining two sub-queries

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

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]

This cherry pick PR is for a release branch and has not yet been approved by release team.
Adding the do-not-merge/cherry-pick-not-approved label.

To merge this cherry pick, it must first be approved by the collaborators.

AFTER it has been approved by collaborators, please ping the release team in a comment to request a cherry pick review.

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[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5@8040e28). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-6.5     #46290   +/-   ##
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  Partials               ?      16327           

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: chrysan, qw4990

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• OWNERS [chrysan,qw4990]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-10-18 11:23:40.607622058 +0000 UTC m=+1829018.194732219: ☑️ agreed by chrysan.
• 2023-10-19 07:47:32.386171744 +0000 UTC m=+1902449.973281888: ☑️ agreed by qw4990.

[qw4990]

/test unit-test

[tiprow]

@qw4990: No presubmit jobs available for pingcap/tidb@release-6.5

In response to this:

/test unit-test

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/test-infra repository.

[qw4990]

/test check-dev2

[tiprow]

@qw4990: No presubmit jobs available for pingcap/tidb@release-6.5

In response to this:

/test check-dev2

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/test-infra repository.