alamb commented on pull request #342:
URL: https://github.com/apache/arrow-datafusion/pull/342#issuecomment-870484980


   > I'm not sure whether or not I can consume the BooleanBufferBuilder within 
HashJoinStream.poll_next. Can I?
   
   I am not sure
   
   > If not, I guess I'd add another PR to BooleanBufferBuilder that exposes 
get_bit
   
   One thing that might be helpful would be to prototype out this PR using a 
local checkout / fork of the arrow-rs repo so that you can get everything 
working and find other potential "gotchas" without having to wait on the 
arrow-rs release cycle
   
   Once you figured out what you needed then we could merge it according in 
parts


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