viirya commented on issue #1092:
URL: 
https://github.com/apache/datafusion-comet/issues/1092#issuecomment-2480121809

   The only place in Comet planner to remove ColumnarToRowExec is when there is 
a combination ColumnarToRowExec + CometSparkToColumnarExec. As the combination 
is a no-op actually, we can remove it from the query plan.
   
   And it is removed from the top of BatchScan (20), it is not even close to 
Project (19), so I'm wondering why it is related. 🤔 
   
   Do you have an example query we can reproduce this?
   
   


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