GitHub user hvanhovell opened a pull request:
https://github.com/apache/spark/pull/9409
[SPARK-11451][SQL] Support single distinct count on multiple columns.
This PR adds support for multiple column in a single count distinct
aggregate to the new aggregation path.
cc @yhuai
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/hvanhovell/spark SPARK-11451
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9409.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 #9409
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commit 51c46bb309c6b33d98b82ef8e90302b73772ce55
Author: Herman van Hovell <[email protected]>
Date: 2015-11-02T11:35:10Z
Add multiple column support for count distinct.
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