GitHub user viirya opened a pull request:

    [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 before 
opening a pull request.

You can merge this pull request into a Git repository by running:

    $ git pull project-sort-order

Alternatively you can review and apply these changes as the patch at:

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
commit 58142f136533fe91956deee9575d7bf48164865b
Author: Liang-Chi Hsieh <>
Date:   2016-10-15T13:27:27Z

    Fix projection output ordering.


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