enhance: Add integration test for stats task

[xiaocai2333]

issue: #33744

[codecov]

Codecov Report

Attention: Patch coverage is 42.85714% with 12 lines in your changes missing coverage. Please review.

Project coverage is 82.60%. Comparing base (5310d34) to head (55fa09e).
Report is 12 commits behind head on master.

Files with missing lines	Patch %	Lines
tests/integration/util_query.go	42.85%	9 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #37506      +/-   ##
==========================================
+ Coverage   80.54%   82.60%   +2.05%     
==========================================
  Files        1333     1043     -290     
  Lines      186990   161611   -25379     
==========================================
- Hits       150617   133500   -17117     
+ Misses      31113    22830    -8283     
- Partials     5260     5281      +21     

Components	Coverage Δ
Client	52.03% <ø> (ø)
Core	∅ <ø> (∅)
Go	83.25% <ø> (-0.03%)	⬇️

Files with missing lines	Coverage Δ
tests/integration/util_query.go	84.07% <42.85%> (-2.28%)	⬇️

... and 316 files with indirect coverage changes

[czs007]

/approve
/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: czs007, xiaocai2333

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