sunchao commented on PR #42324:
URL: https://github.com/apache/spark/pull/42324#issuecomment-1666000423

   Thanks @szehon-ho !
   
   > For my knowledge, curious why we need to run all this code block in 
BatchScanExec::inputRDD (starting line 140) if SPJ not triggered?
   
   ATM even though SPJ is not triggered, the scan partitioning is still 
`KeyGroupedPartitioning` and therefore need to be handled accordingly. 


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