[DNM]:Test global sort

[GMHDBJD]

What problem does this PR solve?

Issue Number: close #xxx

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]

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[codecov]

Codecov Report

Attention: Patch coverage is 67.20214% with 245 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.1-20250226-v8.1.2@80db670). Learn more about missing BASE report.

❗ Current head 075eaad differs from pull request most recent head 38ed5a7

Please upload reports for the commit 38ed5a7 to get more accurate results.

Additional details and impacted files

@@                       Coverage Diff                        @@
##             release-8.1-20250226-v8.1.2     #59826   +/-   ##
================================================================
  Coverage                               ?   71.2165%           
================================================================
  Files                                  ?       1468           
  Lines                                  ?     424206           
  Branches                               ?          0           
================================================================
  Hits                                   ?     302105           
  Misses                                 ?     101557           
  Partials                               ?      20544           

Flag	Coverage Δ
unit	71.2165% <67.2021%> (?)

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

Components	Coverage Δ
dumpling	52.9656% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	41.4643% <0.0000%> (?)

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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]

@GMHDBJD: The following test 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/unit-test	38ed5a7	link	true	/test unit-test

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