GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/9993
[SPARK-11990][SQL] Don't collapse projections if UDFs are referred in
multiple aliases
JIRA: https://issues.apache.org/jira/browse/SPARK-11990
We should not collapse projections in UDFs are referred in multiple aliases
that will cause recomputing these UDFs.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 dont-collapse-multiple-udfs
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9993.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 #9993
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commit 33714623cfd41748e8c29093b1d43f7c32c33873
Author: Liang-Chi Hsieh <[email protected]>
Date: 2015-11-26T07:52:01Z
Don't collapse projections if UDFs are referred in multiple aliases.
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