planner: fix agg push down rule mistake order by item inside agg function (#50002)

[ti-chi-bot]

This is an automated cherry-pick of #50002

What problem does this PR solve?

Issue Number: close #49986

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.

planner: fix agg push down rule mistake order by item inside agg function

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-7.1@4d53073). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.1     #50017   +/-   ##
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  Coverage               ?   73.4150%           
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  Files                  ?       1207           
  Lines                  ?     378714           
  Branches               ?          0           
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  Hits                   ?     278033           
  Misses                 ?      82924           
  Partials               ?      17757           

[fixdb]

+1

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-01-25 07:06:51.146250849 +0000 UTC m=+1030852.710548547: ☑️ agreed by fixdb.
• 2024-01-25 08:56:29.895812795 +0000 UTC m=+1037431.460110499: ☑️ agreed by AilinKid.