GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/9959
[SPARK-11973] [SQL] push filter through aggregation with alias and literals
Currently, filter can't be pushed through aggregation with alias or
literals, this patch fix that.
After this patch, the time of TPC-DS query 4 go down to 34 seconds from 141
seconds (4x improvements).
cc @nongli @yhuai
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark push_filter2
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9959.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 #9959
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commit 2fb7a1cd42664c281bfc64bf584b8f762f828b4d
Author: Davies Liu <dav...@databricks.com>
Date: 2015-11-25T05:41:15Z
push filter through aggregation with alias and literals
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