*: remove duplicate prefix for last query info

[nolouch]

What problem does this PR solve?

Issue Number: ref #49318

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

[codecov]

Codecov Report

Merging #50075 (42ad36c) into master (6f32664) will increase coverage by 10.0231%.
Report is 1 commits behind head on master.
The diff coverage is 100.0000%.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #50075         +/-   ##
=================================================
+ Coverage   71.8820%   81.9052%   +10.0231%     
=================================================
  Files          1439       2442       +1003     
  Lines        346160     672979     +326819     
=================================================
+ Hits         248827     551205     +302378     
- Misses        77058     101029      +23971     
- Partials      20275      20745        +470     

Flag	Coverage Δ
integration	48.6262% <100.0000%> (?)
unit	79.2470% <100.0000%> (+7.3649%)	⬆️

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

Components	Coverage Δ
dumpling	73.6130% <ø> (+17.3001%)	⬆️
parser	∅ <ø> (∅)
br	71.8542% <ø> (+20.3952%)	⬆️

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CabinfeverB, glorv

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-01-04 07:34:27.755863828 +0000 UTC m=+2328758.793090827: ☑️ agreed by CabinfeverB.
• 2024-01-04 07:52:30.905779338 +0000 UTC m=+2329841.943006264: ☑️ agreed by glorv.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #51122.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #52704.