fix(tianmu):assert failed on oldv <= dpn_->max_i at pack_int.cpp:337 (#1610)

[konghaiya]

Summary about this PR

Issue Number: close #1610
Issue Number: close #1620
Issue Number: close #1617

Tests Check List

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Changelog

• New Feature
• Bug Fix
• Performance Improvement
• Build/Testing/CI/CD
• Documentation
• Not for changelog (changelog entry is not required)

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features

[mergify]

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[konghaiya]

[codecov]

Codecov Report

Patch coverage: 68.59% and project coverage change: -0.01 ⚠️

Comparison is base (ba8cead) 55.22% compared to head (78e5590) 55.22%.

❗ Current head 78e5590 differs from pull request most recent head b955265. Consider uploading reports for the commit b955265 to get more accurate results

Additional details and impacted files

@@                 Coverage Diff                 @@
##           stonedb-5.7-dev    #1627      +/-   ##
===================================================
- Coverage            55.22%   55.22%   -0.01%     
===================================================
  Files                 2031     2031              
  Lines               431415   431436      +21     
===================================================
+ Hits                238246   238252       +6     
- Misses              193169   193184      +15     

Impacted Files	Coverage Δ
storage/tianmu/data/pack_str.h	90.69% <ø> (ø)
storage/tianmu/executor/merge_operator.cpp	91.83% <0.00%> (+5.29%)	⬆️
storage/tianmu/handler/ha_tianmu.cpp	51.51% <ø> (ø)
storage/tianmu/vc/tianmu_attr.cpp	74.22% <33.33%> (+0.02%)	⬆️
storage/tianmu/data/pack_str.cpp	65.21% <56.66%> (-0.95%)	⬇️
storage/tianmu/data/pack_int.cpp	68.63% <69.86%> (-1.86%)	⬇️
storage/tianmu/core/delta_table.cpp	56.52% <100.00%> (ø)
storage/tianmu/core/engine.cpp	67.06% <100.00%> (+3.06%)	⬆️
storage/tianmu/core/tianmu_table.cpp	67.48% <100.00%> (+0.03%)	⬆️
storage/tianmu/data/pack.cpp	63.63% <100.00%> (+1.37%)	⬆️
... and 1 more

... and 52 files with indirect coverage changes

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