Rachelint commented on issue #6408:
URL: https://github.com/apache/arrow-rs/issues/6408#issuecomment-2356092835

   It may 
   
   > On solution here would be to replace `Vec<Buffer>` with `Arc<[Buffer]>` 
after construction -- that would make managing the buffers on `slice` extremely 
cheap
   
   The slice maybe can't be eliminated until the epic 
https://github.com/apache/datafusion/issues/7065 is finished...
   Because it will still be called here 
https://github.com/apache/datafusion/blob/a08f923c2acb1a46614970231d9a672c36ce3ad2/datafusion/physical-plan/src/aggregates/row_hash.rs#L713


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