planner: import more tests about rollup expand

[AilinKid]

What problem does this PR solve?

Issue Number: close #42631

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

[tiprow]

Hi @AilinKid. Thanks for your PR.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.3626%. Comparing base (247b06e) to head (94addaf).
Report is 10 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #55024        +/-   ##
================================================
+ Coverage   72.5668%   74.3626%   +1.7958%     
================================================
  Files          1562       1565         +3     
  Lines        440131     442978      +2847     
================================================
+ Hits         319389     329410     +10021     
+ Misses       100928      93283      -7645     
- Partials      19814      20285       +471     

Flag	Coverage Δ
integration	49.2531% <ø> (?)
unit	71.6740% <ø> (+0.0716%)	⬆️

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

Components	Coverage Δ
dumpling	52.9567% <ø> (ø)
parser	∅ <ø> (∅)
br	52.4919% <ø> (+6.6697%)	⬆️

[AilinKid]

/test check-dev2

[tiprow]

@AilinKid: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/test check-dev2

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-07-29 10:03:45.110574131 +0000 UTC m=+177341.390622192: ☑️ agreed by qw4990.
• 2024-07-30 07:27:56.376650927 +0000 UTC m=+254392.656698995: ☑️ agreed by hawkingrei.