executor: check for null values when comparing different groups during streamAgg (#15742) #15777
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cherry-pick #15742 to release-4.0
What problem does this PR solve?
Close #15690
Close #15691
Close #15695
Close #15696
In the master version, we forget to check the null value when we compare the different groups during
StreamAgg.What is changed and how it works?
Add checks for null values when comparing different groups during
StreamAgg.Check List
Tests