planner: remove the same projection when to InjectExtraProjection | tidb-test=pr/2349

[hawkingrei]

What problem does this PR solve?

Issue Number: close #54123

Problem Summary:

What changed and how does it work?

InjectExtraProjection forgets to remove duplicated projections.

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

Attention: Patch coverage is 97.05882% with 1 line in your changes missing coverage. Please review.

Project coverage is 55.9486%. Comparing base (cbdbd76) to head (ae82168).
Report is 18 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #54163         +/-   ##
=================================================
- Coverage   74.9123%   55.9486%   -18.9637%     
=================================================
  Files          1520       1644        +124     
  Lines        360958     621048     +260090     
=================================================
+ Hits         270402     347468      +77066     
- Misses        71042     249255     +178213     
- Partials      19514      24325       +4811     

Flag	Coverage Δ
integration	37.5874% <97.0588%> (?)
unit	71.7780% <94.1176%> (-2.0258%)	⬇️

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

Components	Coverage Δ
dumpling	52.9656% <ø> (-2.2339%)	⬇️
parser	∅ <ø> (∅)
br	52.7255% <ø> (+4.7015%)	⬆️

[hawkingrei]

/retest

[hawkingrei]

/retest

[hawkingrei]

/test all

[hawkingrei]

/retest

[hawkingrei]

/test all

[hawkingrei]

/test all

[hawkingrei]

/retest

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AilinKid, winoros

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Needs approval from an approver in each of these files:

• OWNERS [AilinKid,winoros]
• pkg/planner/OWNERS [AilinKid,winoros]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-24 09:45:12.296908726 +0000 UTC m=+626438.782397550: ☑️ agreed by AilinKid.
• 2024-06-24 16:05:55.750621178 +0000 UTC m=+649282.236110010: ☑️ agreed by winoros.