GitHub user JoshRosen opened a pull request:
https://github.com/apache/spark/pull/12120
[SPARK-14337][SQL] Push casts beneath CASE WHEN and IF operations.
If we have a cast on top of a CASE WHEN or IF expression, then we should
push the cast to each conditional branch's result expression.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/JoshRosen/spark cast-pushdown
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12120.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 #12120
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commit a9eaa3ad99dc847625e49339cdffe46bac07b392
Author: Josh Rosen <[email protected]>
Date: 2016-04-01T23:10:29Z
Push casts beneath CaseWhen and If operations.
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