[GitHub] [arrow] pitrou commented on issue #6986: ARROW-8523: [C++] Optimize BitmapReader

2020-04-21 Thread GitBox 


pitrou commented on issue #6986:
URL: https://github.com/apache/arrow/pull/6986#issuecomment-617033346


   To be honest, `BitmapAnd` should probably be rewritten using 
`Bitmap::VisitWords`.
   But we can revert anyway if we fear regressions may appear in other 
workloads.



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[GitHub] [arrow] pitrou commented on issue #6986: ARROW-8523: [C++] Optimize BitmapReader

2020-04-20 Thread GitBox 


pitrou commented on issue #6986:
URL: https://github.com/apache/arrow/pull/6986#issuecomment-616468493


   @cyb70289 It's ok, we can keep this PR.



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