bersprockets commented on PR #41712:
URL: https://github.com/apache/spark/pull/41712#issuecomment-1609842036

   @steven-aerts 
   
   Here's a clue. It appears to be something with this `map` operation:
   
   
https://github.com/apache/spark/blob/24960d84a9dac17728822f3e783335f221c49da3/sql/core/src/main/scala/org/apache/spark/sql/execution/joins/JoinCodegenSupport.scala#L82
   
   When I change it to `plan.output.toIndexedSeq.zipWithIndex.map ...` in a 
working copy without your fix, your tests then pass.
   
   I haven't looked in detail why that is. Probably a good idea that we know, 
however.


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