ddl: fix addindex wrong rowcount on dxf when the job txn failed

[D3Hunter]

What problem does this PR solve?

Issue Number: close #58573

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 @D3Hunter. Thanks for your PR.

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[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 75.1424%. Comparing base (3c40731) to head (a3745e0).
Report is 315 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #58575        +/-   ##
================================================
+ Coverage   73.5554%   75.1424%   +1.5870%     
================================================
  Files          1680       1725        +45     
  Lines        464640     474963     +10323     
================================================
+ Hits         341768     356899     +15131     
+ Misses       102005      95878      -6127     
- Partials      20867      22186      +1319     

Flag	Coverage Δ
integration	49.0615% <66.6666%> (?)
unit	72.5471% <66.6666%> (+0.2577%)	⬆️

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

Components	Coverage Δ
dumpling	52.6910% <ø> (ø)
parser	∅ <ø> (∅)
br	61.7373% <ø> (+15.9627%)	⬆️

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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Needs approval from an approver in each of these files:

• OWNERS [lance6716,tangenta]
• pkg/ddl/OWNERS [lance6716,tangenta]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-27 06:43:06.079549293 +0000 UTC m=+73521.435553859: ☑️ agreed by tangenta.
• 2024-12-27 07:09:22.920416791 +0000 UTC m=+75098.276421329: ☑️ agreed by lance6716.

[D3Hunter]

/retest

[tiprow]

@D3Hunter: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest

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[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #59748.
But this PR has conflicts, please resolve them!