You are viewing a plain text version of this content. The canonical link for it is here.

Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/07/27 19:46:40 UTC

[GitHub] [arrow-datafusion] alamb commented on pull request #786: Remove GroupByScalar and use ScalarValue in preparation for supporting null values in GroupBy

alamb commented on pull request #786:
URL: https://github.com/apache/arrow-datafusion/pull/786#issuecomment-887786814


   >  we can keep the keys in a contiguous (mutable) array instead and keep offsets/pointers to the values in this array (and null values can be stored in a bitmap, so only 1 bit per value).
   
   @Dandandan  this is a great idea - I will write up in more detail what I think you are proposing to make sure we are on the same page


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: github-unsubscribe@arrow.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org