planner: fix the issue about simplify outer join to inner join (#51750) | tidb-test=pr/2336

[ti-chi-bot]

This is an automated cherry-pick of #51750

What problem does this PR solve?

Issue Number: close #51560

Problem Summary:

The original codes will push the predicates that are not related to that child.

What changed and how does it work?

Don't do the recursively. Let the predicate-push-down to do the recursively.

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (release-7.5@ff05c7a). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.5     #52078   +/-   ##
================================================
  Coverage               ?   72.0092%           
================================================
  Files                  ?       1411           
  Lines                  ?     410597           
  Branches               ?          0           
================================================
  Hits                   ?     295668           
  Misses                 ?      95037           
  Partials               ?      19892           

Flag	Coverage Δ
unit	72.0092% <ø> (?)

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

Components	Coverage Δ
dumpling	53.9913% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	53.4834% <0.0000%> (?)

[fixdb]

+1

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-05-28 04:40:00.367239077 +0000 UTC m=+2751354.124374650: ☑️ agreed by fixdb.
• 2024-05-28 06:07:08.776874881 +0000 UTC m=+2756582.534010450: ☑️ agreed by qw4990.

[winoros]

/test mysql-test

[tiprow]

@winoros: No presubmit jobs available for pingcap/[email protected]

In response to this:

/test mysql-test

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[winoros]

/test unit-test

[tiprow]

@winoros: No presubmit jobs available for pingcap/[email protected]

In response to this:

/test unit-test

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