peter-toth commented on pull request #28881:
URL: https://github.com/apache/spark/pull/28881#issuecomment-647102573


   @prakharjain09 , it seems we both opened PRs 
(https://github.com/apache/spark/pull/28885 is mine) to fix the issue with 
exchange and subquery reuse. It looks like we came to the same conclusion that 
the separate reuse rules needs to be unified. My PR does a bit more that that 
and actually does the combined reuse in a bit different way than yours. I also 
see that you opened the ticket SPARK-32041 for the issue. If you don't mind I 
would add that ticket to my PR as well.


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