GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/11469
[SPARK-13617][SQL] remove unnecessary GroupingAnalytics trait
## What changes were proposed in this pull request?
The `trait GroupingAnalytics` only has one implementation, it's an
unnecessary abstraction. This PR removes it, and does some code simplification
when resolving `GroupingSet`.
## How was this patch tested?
existing tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark groupingset
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11469.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 #11469
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commit d7424eb2bf91bf7ca087c1c232850f7d8feaa69f
Author: Wenchen Fan <[email protected]>
Date: 2016-03-02T13:23:15Z
clean up
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