GitHub user maropu opened a pull request:
https://github.com/apache/spark/pull/17164
[SPARK-16844][SQL] Support codegen for sort-based aggreagate
## What changes were proposed in this pull request?
This is the rework of #14481.
## How was this patch tested?
Checked tests in `DataFrameAggregateSuite`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/maropu/spark SPARK-16844
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17164.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 #17164
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commit 4b72502482546b4b7fc64540e7ac5b78bb79794c
Author: Yucai Yu <yucai...@intel.com>
Date: 2016-09-13T05:37:04Z
[SPARK-16844][SQL] Generate code for sort based aggregation
commit ee3542b3ce52b5afaf75c7828b1a9b3b7562dd9e
Author: Yucai Yu <yucai...@intel.com>
Date: 2016-09-22T04:26:01Z
Create setValue to update a variable for a given DataType
commit f2ccc6594172d2a3a9e9a1262879e75948ddb8c6
Author: Takeshi Yamamuro <yamam...@apache.org>
Date: 2017-03-03T23:31:47Z
Rework from a stale pr
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