wForget commented on PR #2438:
URL: 
https://github.com/apache/datafusion-comet/pull/2438#issuecomment-3322110363

   > @wForget thank you for fixing this. One thought though - The same subquery 
execution would be completed if the scan were a spark scan, so some 
investigation is needed to determine why we see this issue with CometNativeScan.
   
   As commented in 
https://github.com/apache/datafusion-comet/issues/2424#issuecomment-3317091656, 
we called `scan.rdd` in the planner phase which caused `pushedDownFilters` to 
be used prematurely. If it was called in execute phase it would always wait for 
all subqueries to complete.


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