GitHub user scwf opened a pull request:
https://github.com/apache/spark/pull/5677
[SPARK-7109] [SQL] Push down left side filter for left semi join
Now in spark sql optimizer we only push down right side filter for left
semi join, actually we can push down left side filter.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/scwf/spark leftsemi
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/5677.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 #5677
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commit ebadaa9798752498004fc3bc53de07ed53b49f7b
Author: wangfei <[email protected]>
Date: 2015-04-24T03:33:01Z
left filter push down for left semi join
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