GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/15500
[SPARK-17956][SQL] Fix projection output ordering
## What changes were proposed in this pull request?
Currently `ProjectExec` simply takes child plan's `outputOrdering` as its
`outputOrdering`. In some cases, this might lead to incorrect `outputOrdering`.
This argument applies to `TakeOrderedAndProjectExec` too.
## How was this patch tested?
Jenkins tests.
Please review
https://cwiki.apache.org/confluence/display/SPARK/Contributing+to+Spark before
opening a pull request.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 project-sort-order
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15500.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 #15500
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commit 58142f136533fe91956deee9575d7bf48164865b
Author: Liang-Chi Hsieh <vii...@gmail.com>
Date: 2016-10-15T13:27:27Z
Fix projection output ordering.
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