test: stabilize TestAnalyzeColumnsWithVirtualColumnIndex

[tangenta]

What problem does this PR solve?

Issue Number: close #56797

Problem Summary:

We may have multiple domains in unit test. It is better not to use global variables as soon as possible.

What changed and how does it work?

Change global variable recordMap to local one.

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]

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-10-23 06:31:49.397863878 +0000 UTC m=+419110.094654505: ☑️ agreed by hawkingrei.
• 2024-10-23 06:40:18.257557395 +0000 UTC m=+419618.954348021: ☑️ agreed by nolouch.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.4418%. Comparing base (ba5823b) to head (2d4425d).
Report is 2 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #56798         +/-   ##
=================================================
- Coverage   73.3727%   56.4418%   -16.9310%     
=================================================
  Files          1635       1761        +126     
  Lines        452770     632423     +179653     
=================================================
+ Hits         332210     356951      +24741     
- Misses       100208     251348     +151140     
- Partials      20352      24124       +3772     

Flag	Coverage Δ
integration	37.1452% <100.0000%> (?)
unit	72.5972% <100.0000%> (+0.1046%)	⬆️

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

Components	Coverage Δ
dumpling	52.9478% <ø> (ø)
parser	∅ <ø> (∅)
br	52.7299% <ø> (+6.7068%)	⬆️