statstics: fix wrong stats health metrics

[hawkingrei]

What problem does this PR solve?

Issue Number: close #57176

Problem Summary:

What changed and how does it work?

we use the wrong index of total table count metrics.

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

[lance6716]

Maybe add unit tests to avoid regression in future

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-11-20 08:54:16.652630952 +0000 UTC m=+21844.272285464: ☑️ agreed by AilinKid.
• 2024-11-20 09:02:47.485570407 +0000 UTC m=+22355.105224918: ☑️ agreed by lance6716.

[codecov]

Codecov Report

Attention: Patch coverage is 90.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 73.6293%. Comparing base (ad5ca42) to head (b5b42cc).
Report is 3 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #57555        +/-   ##
================================================
+ Coverage   72.8329%   73.6293%   +0.7963%     
================================================
  Files          1676       1706        +30     
  Lines        463539     472278      +8739     
================================================
+ Hits         337609     347735     +10126     
+ Misses       105125     103084      -2041     
- Partials      20805      21459       +654     

Flag	Coverage Δ
integration	46.0842% <90.0000%> (?)
unit	72.2285% <90.0000%> (+0.0093%)	⬆️

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

Components	Coverage Δ
dumpling	52.6543% <ø> (-0.1130%)	⬇️
parser	∅ <ø> (∅)
br	45.3657% <ø> (+0.0090%)	⬆️

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[hawkingrei]

/cherrypick release-8.5

[ti-chi-bot]

@hawkingrei: new pull request created to branch release-8.5: #57559.

In response to this:

/cherrypick release-8.5

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[hawkingrei]

/cherrypick release-7.5

[ti-chi-bot]

@hawkingrei: new pull request created to branch release-7.5: #57830.

In response to this:

/cherrypick release-7.5

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.