felipecrv commented on issue #40613:
URL: https://github.com/apache/arrow/issues/40613#issuecomment-2347429754

   It depends on what the client is going to do with the data. I think showing 
that data can be loaded batch by batch is more interesting. It's a streaming 
protocol after all.
   
   A client performing some kind of aggregation can go through the batches 
updating its state and finalizing when all batches are read (e.g. calculating 
some weighted average on the stream).
   
   People naturally tend to write code that buffers everything, so having the 
examples showing that batch-by-batch is possible only helps.


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