mjgarton commented on issue #19840:
URL: https://github.com/apache/datafusion/issues/19840#issuecomment-3767584909

   Thanks @kosiew .  I believe this issue may also apply to update processing. 
   
   Please let me know if there's anything I can do to help.  I would try to fix 
this myself, but I don't know what the right approach is.
   
   The current approach to deletion in my application is to use a custom 
planner, and internally it simply executes the input plan to find the records 
that need deleting.  This approach works, but I suspect isn't very optimal 
because it reads everything before deleting it.


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