*: only output log when error is non-nil

[xhebox]

What problem does this PR solve?

Issue Number: close #53349

Problem Summary: As title.

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 @xhebox. Thanks for your PR.

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[YangKeao]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Defined2014, YangKeao

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• OWNERS [Defined2014,YangKeao]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-05-17 05:38:42.658584059 +0000 UTC m=+1804476.415719639: ☑️ agreed by Defined2014.
• 2024-05-17 05:39:59.781866606 +0000 UTC m=+1804553.539002172: ☑️ agreed by YangKeao.

[Defined2014]

/run-check-issue-triage-complete

[xhebox]

/check-issue-triage-complete

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 73.8438%. Comparing base (1c4a9c6) to head (ef489c6).
Report is 1 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #53350        +/-   ##
================================================
+ Coverage   72.4996%   73.8438%   +1.3442%     
================================================
  Files          1505       1523        +18     
  Lines        429646     435317      +5671     
================================================
+ Hits         311492     321455      +9963     
+ Misses        98849      93956      -4893     
- Partials      19305      19906       +601     

Flag	Coverage Δ
integration	49.1264% <0.0000%> (?)
unit	71.4382% <0.0000%> (+0.0392%)	⬆️

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

Components	Coverage Δ
dumpling	53.9957% <ø> (ø)
parser	∅ <ø> (∅)
br	43.3054% <ø> (+1.8809%)	⬆️

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #53354.