feat: unify column data retrieval for aggregate test cases

[srikrishnak]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.94%. Comparing base (b0cb727) to head (c4faefd).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #123      +/-   ##
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+ Coverage   63.89%   63.94%   +0.05%     
==========================================
  Files          44       44              
  Lines       10923    10940      +17     
==========================================
+ Hits         6979     6996      +17     
  Misses       3629     3629              
  Partials      315      315              

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[EpsilonPrime]

While we're in here do we want to add support for both aggregate formats to GetArgTypes?

[srikrishnak]

While we're in here do we want to add support for both aggregate formats to GetArgTypes?
Enhanced the test case to check GetArgTypes. It works correctly for all aggregate formats