GitHub user wzhfy opened a pull request:
https://github.com/apache/spark/pull/16431
[SPARK-19020] [SQL] Cardinality estimation of aggregate operator
## What changes were proposed in this pull request?
Support cardinality estimation of aggregate operator
## How was this patch tested?
Add test cases
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wzhfy/spark aggEstimation
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16431.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #16431
----
commit c0645952aef0455ac0ad6cefc6de9e624813c7bc
Author: Zhenhua Wang <[email protected]>
Date: 2016-12-29T06:34:40Z
agg estimation
----
---
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 [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
