tustvold commented on PR #6676:
URL: https://github.com/apache/arrow-rs/pull/6676#issuecomment-2551016464

   FWIW I did have some ideas about exposing lower level APIs in 
https://github.com/apache/arrow-rs/issues/5522 that would allow finer grained 
control of decode but I've not had time, and am unlikely to have time, to write 
up a concrete proposal.
   
   I agree that we should provide a way to concurrently fetch IO and do 
parallel decode, it is unclear that this can be made to work in the 
RecordBatchStream interface, or if it would need a new API as proposed in #5522
   
   _On a historical note, RecordBatchStream was itself a compromise, I 
originally wanted a push-based decoder 
https://github.com/apache/arrow-rs/issues/1605 but in the interests of time I 
went with the simpler, but more constraining option._


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