Addressed some pr comments

[yashNaN]

Addressing a few of the pull request fixes

[codecov-io]

Codecov Report

Merging #40 into schema_change will increase coverage by 0.02%.
The diff coverage is 100%.

@@               Coverage Diff                @@
##           schema_change     #40      +/-   ##
================================================
+ Coverage          88.17%   88.2%   +0.02%     
================================================
  Files                190     190              
  Lines               7292    7292              
================================================
+ Hits                6430    6432       +2     
+ Misses               862     860       -2

Impacted Files	Coverage Δ
src/include/storage/sql_table.h	96.22% <ø> (ø)	⬆️
src/include/storage/storage_defs.h	94.44% <ø> (ø)	⬆️
src/storage/sql_table.cpp	96.15% <100%> (ø)	⬆️
src/transaction/transaction_manager.cpp	95.27% <0%> (+0.78%)	⬆️
src/storage/garbage_collector.cpp	95.23% <0%> (+0.95%)	⬆️

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