Add more ITs for Table Model Aggregation

[JackieTien97]

No description provided.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

Attention: Patch coverage is 16.66667% with 5 lines in your changes missing coverage. Please review.

Project coverage is 40.34%. Comparing base (2a28e10) to head (e95c183).
Report is 8 commits behind head on master.

Files with missing lines	Patch %	Lines
...eryengine/execution/operator/AbstractOperator.java	25.00%	3 Missing ⚠️
...nal/aggregation/grouped/GroupedAvgAccumulator.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #13818      +/-   ##
============================================
- Coverage     40.34%   40.34%   -0.01%     
  Complexity       71       71              
============================================
  Files          4104     4106       +2     
  Lines        258191   258357     +166     
  Branches      31496    31531      +35     
============================================
+ Hits         104163   104223      +60     
- Misses       154028   154134     +106     

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