fix: Fix a crash issue of bulkinsert

[yhmo]

issue: #40291
pr: #40331

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[codecov]

Codecov Report

Attention: Patch coverage is 62.50000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 80.91%. Comparing base (d754e0b) to head (9e3855f).
Report is 6 commits behind head on 2.5.

Files with missing lines	Patch %	Lines
internal/util/importutilv2/parquet/util.go	62.50%	2 Missing and 1 partial ⚠️

❌ Your patch check has failed because the patch coverage (62.50%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##              2.5   #40304      +/-   ##
==========================================
+ Coverage   80.89%   80.91%   +0.01%     
==========================================
  Files        1418     1418              
  Lines      200212   200219       +7     
==========================================
+ Hits       161965   161998      +33     
+ Misses      32577    32551      -26     
  Partials     5670     5670              

Components	Coverage Δ
Client	79.28% <ø> (ø)
Core	70.15% <ø> (ø)
Go	82.82% <62.50%> (+0.01%)	⬆️

Files with missing lines	Coverage Δ
internal/util/importutilv2/parquet/util.go	71.42% <62.50%> (-0.50%)	⬇️

... and 34 files with indirect coverage changes

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@yhmo go-sdk check failed, comment rerun go-sdk can trigger the job again.