mingmwang commented on PR #5554:
URL: 
https://github.com/apache/arrow-datafusion/pull/5554#issuecomment-1472134068

   Any luck? 
   I think the rule `SingleDistinctToGroupBy` has conflicts with the 
optimization and rewriting `Distinct` to `Group By` is not always beneficial.  
Maybe we should add a configuration to turn on/off this rewriting.
   


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