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Posted to github@arrow.apache.org by "tustvold (via GitHub)" <gi...@apache.org> on 2023/04/16 10:44:27 UTC

[GitHub] [arrow-rs] tustvold commented on issue #4095: Arrow compute kernel regards selection vector

tustvold commented on issue #4095:
URL: https://github.com/apache/arrow-rs/issues/4095#issuecomment-1510285967

   For primitives at least, I would expect a filter followed by the existing sum kernel to be very competitive, as it has been my experience that LLVM struggles to vectorise operations involving bitmasks.
   
   We should definitely benchmark any new kernels against this "naive" approach


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