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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/06/03 20:42:38 UTC

[GitHub] [arrow] nirandaperera commented on pull request #10296: ARROW-12724: [C++] Add documentation for authoring compute kernels

nirandaperera commented on pull request #10296:
URL: https://github.com/apache/arrow/pull/10296#issuecomment-854164867


   This is a sort of confusion I had when I first started writing kernels. 
   _"A 'scalar' is a single (non-array) element! But how come "Scalar functions" accept and produce arrays?"_ 
   But now I understand, even though arrays are passed, the function is applied on each scalar in the array independently.
   Do you this is something we'd want to explicitly discuss in the doc?


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