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 17:31:29 UTC

[GitHub] [arrow-datafusion] Dandandan commented on issue #782: Wrong results when grouping on a column with NULLs

Dandandan commented on issue #782:
URL: https://github.com/apache/arrow-datafusion/issues/782#issuecomment-887698068


   Great find. I think group by doesn't support nulls at all ATM.
   
   The groupby scalars don't have a null and extracting a key doesn't look yet at whether the value is null or not.
   
   
   
   


-- 
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