ddl: fix rename index for expression indexes (#51984)

[ti-chi-bot]

This is an automated cherry-pick of #51984

What problem does this PR solve?

Issue Number: close #51431

Problem Summary:
Rename the virtual generated column when rename idx.

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

[codecov]

Codecov Report

Attention: Patch coverage is 31.25000% with 11 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-6.5@947bb04). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-6.5     #53737   +/-   ##
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  Coverage               ?   74.3262%           
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  Files                  ?       1097           
  Lines                  ?     358600           
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  Hits                   ?     266534           
  Misses                 ?      75253           
  Partials               ?      16813           

[lance6716]

/cc @ywqzzy @tangenta

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lance6716, tangenta

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• OWNERS [lance6716,tangenta]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-04 02:21:13.689503121 +0000 UTC m=+3347827.446638695: ☑️ agreed by lance6716.
• 2024-06-05 06:37:21.591958155 +0000 UTC m=+3449595.349093730: ☑️ agreed by tangenta.

[lance6716]

/retest