westonpace commented on issue #35649:
URL: https://github.com/apache/arrow/issues/35649#issuecomment-1585031066

   > I think we might be able to make this one happen...this is basically a 
wrapping a RecordBatchReader with SafeCallIntoR<RecordBatch>(reader.ReadNext()).
   
   Ah, yes, that makes sense.  R is the one providing the C data stream source 
to Acero so I suppose you have the power to wrap it.  And, it makes sense for 
you to assume that whatever it is will make R calls.
   
   > ...given that literally all of those things are my fault, I'm happy to 
take a stab at fixing!
   
   I think we can place a healthy amount of the blame both on myself and on R's 
ambitious threading model :laughing: 


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