devanbenz commented on issue #6692:
URL: https://github.com/apache/arrow-rs/issues/6692#issuecomment-2462135240

   > Not sure about other type but for StringView, I can only think of 
iterating all the filtered row and `append_value` one by one. If there is no 
further optimization we can do, I think we can implement the append logic in 
datafusion
   
   'append_value' does a copy though. Wouldn't that effectively still be a 
large amount of copies? 


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