Colin fix read overflow

[ColinLeeo]

[codecov-commenter]

Codecov Report

:x: Patch coverage is 50.00000% with 25 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 65.62%. Comparing base (04eb621) to head (e2415af). :warning: Report is 26 commits behind head on develop.

Files with missing lines	Patch %	Lines
cpp/src/reader/tsfile_series_scan_iterator.cc	26.66%	9 Missing and 2 partials :warning:
cpp/src/reader/aligned_chunk_reader.cc	41.17%	6 Missing and 4 partials :warning:
cpp/src/reader/aligned_chunk_reader.h	20.00%	3 Missing and 1 partial :warning:

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #496      +/-   ##
===========================================
- Coverage    65.78%   65.62%   -0.16%     
===========================================
  Files          566      566              
  Lines        33437    33459      +22     
  Branches      4688     4698      +10     
===========================================
- Hits         21997    21958      -39     
- Misses       10789    10840      +51     
- Partials       651      661      +10     

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