LuciferYang commented on pull request #33748:
URL: https://github.com/apache/spark/pull/33748#issuecomment-902447683


   > Yea, but it adds complexity and more memory consumption like you mentioned 
earlier, and you'll need to have the driver a long running process like a 
Presto coordinator
   
   Yes, in the production environment, we did change a lot of code for similar 
optimization
   
   


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