[to dev/1.3] Optimize memtable region scan

[shuwenwei]

Description

#16883

[sonarqubecloud]

Quality Gate failed

Failed conditions
6.7% Duplication on New Code (required ≤ 5%)

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

❌ Patch coverage is 91.86047% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 41.21%. Comparing base (abb25f4) to head (7641d6e).

Files with missing lines	Patch %	Lines
...geengine/dataregion/memtable/AbstractMemTable.java	80.76%	5 Missing ⚠️
.../iotdb/db/storageengine/dataregion/DataRegion.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             dev/1.3   #16891      +/-   ##
=============================================
+ Coverage      41.13%   41.21%   +0.07%     
  Complexity       198      198              
=============================================
  Files           3592     3592              
  Lines         235806   235848      +42     
  Branches       28471    28485      +14     
=============================================
+ Hits           96996    97193     +197     
+ Misses        138810   138655     -155     

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