[GitHub] [arrow-rs] Dandandan commented on issue #3708: Support `unary_dyn_mut` in arth

["Dandandan (via GitHub)" <gi...@apache.org>]

Dandandan commented on issue #3708:
URL: https://github.com/apache/arrow-rs/issues/3708#issuecomment-1434460419

   A difference with https://github.com/apache/arrow-rs/pull/3134#issuecomment-1328366171 is that a batch size of 512 (in `math_query_sql`) vs 512000 (in the linked issue).
   
   I would expect a larger difference to arise for simple arithmetic operations (like adding) when choosing a small batch size as the operation itself could be fast compared to the allocation. Also in the posted benchmark in the comments a allocation is done in the loop, whereas the query from @Ted-Jiang does a scalar addition.
   Would be good if we have a benchmark to show the difference.


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