GitHub user yhuai opened a pull request:
https://github.com/apache/spark/pull/8172
[SPARK-9592] Fix Last function implemented based on AggregateExpression1.
https://issues.apache.org/jira/browse/SPARK-9592
#8113 has the fundamental fix. But, if we want to minimize the number of
changed lines, we can go with this one. Then, in 1.6, we merge #8113.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/yhuai/spark lastFix
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8172.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 #8172
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commit af8708658fd01d2f908a57dc87511059b50d44d3
Author: Yin Huai <[email protected]>
Date: 2015-08-13T17:47:22Z
Fix last.
commit b28c42abccb7f9011961d421839ec2937f9fe12b
Author: Yin Huai <[email protected]>
Date: 2015-08-13T17:58:59Z
Regression test.
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