GitHub user petermaxlee opened a pull request:
https://github.com/apache/spark/pull/14697
[SPARK-17124][SQL] RelationalGroupedDataset.agg should be order preserving
and allow multiple expressions per column
## What changes were proposed in this pull request?
(Please fill in changes proposed in this fix)
## How was this patch tested?
Added a test case in DataFrameAggregateSuite.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/petermaxlee/spark SPARK-17124
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14697.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 #14697
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commit bd64ade6e3a82e9da55163e96303509275c56678
Author: petermaxlee <petermax...@gmail.com>
Date: 2016-08-18T06:50:24Z
[SPARK-17124][SQL] RelationalGroupedDataset.agg should be order preserving
and allow duplicate column names
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