fix: Add output to Comet operators equal and hashCode #902
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Which issue does this PR close?
Closes #.
Rationale for this change
During debugging the last test failure in #893, it is caused by incorrectly exchange reuse of two Comet hash aggregate operators. Currently Comet hash aggregate operator's equal and hashCode don't include output. So if two hash operators have same input, mode, etc, they will be wrongly considered equal and cause the issue.
This patch add output to all Comet operators' equal and hashCode methods.
What changes are included in this PR?
How are these changes tested?