GitHub user yhuai opened a pull request:
https://github.com/apache/spark/pull/8113
[SPARK-9740] [SQL] Change the default behavior of First/Last to RESPECT
NULLS.
I am changing behavior of `First`/`Last` to respect null values (the SQL
standard default behavior).
https://issues.apache.org/jira/browse/SPARK-9740
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/yhuai/spark firstLast
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8113.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 #8113
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commit 6ee4a0423122f86b03573a3b0a70b8d067d8205a
Author: Yin Huai <[email protected]>
Date: 2015-08-11T21:54:47Z
Change the default behavior of First/Last to RESPECT NULLS.
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