GitHub user yanboliang opened a pull request:
https://github.com/apache/spark/pull/9294
[SPARK-11303] [SQL] filter should not be pushed down into sample
When sampling and then filtering DataFrame, the SQL Optimizer will push
down filter into sample and produce wrong result.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/yanboliang/spark spark-11303
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9294.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 #9294
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commit ef16f3d2d8aff441a92061c9f44b700161f7f9dd
Author: Yanbo Liang <[email protected]>
Date: 2015-10-27T07:55:06Z
filter should not be pushed down into sample
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