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From viirya <>
Subject [GitHub] spark pull request: [SPARK-6466][SQL] Remove unnecessary attribute...
Date Mon, 23 Mar 2015 10:08:57 GMT
GitHub user viirya opened a pull request:

    [SPARK-6466][SQL] Remove unnecessary attributes when resolving GroupingSets

    When resolving `GroupingSets`, we currently list all outputs of `GroupingSets`'s child
plan. However, the columns that are not in groupBy expressions and not used by aggregation
expressions are unnecessary and can be removed.

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

    $ git pull remove_attr_expand

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 #5134
commit 8e16206aa7b8ece8521a64bfabdafbe925ce8e75
Author: Liang-Chi Hsieh <>
Date:   2015-03-23T09:58:54Z

    Only keep necessary attribute output.


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