mingmwang commented on issue #5547:
URL: 
https://github.com/apache/arrow-datafusion/issues/5547#issuecomment-1491263019

   > rite approach to see how its performance dif
   
   There is already a rule `SingleDistinctToGroupBy` which will cover a single 
distinct to `group by`, it does not cover the mixed distinct with normal aggs 
and multi distinct cases.
   
   


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