Github user chenghao-intel commented on the pull request:
https://github.com/apache/spark/pull/1935#issuecomment-52146130
Don't forget the `SumDistinct`, :-)
One concern is about the memory usage after partition data shuffled.
e.g. `select sum(distinct(value)) from src`
Probably we can improve that in another PRs.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
