GitHub user ggupta81 opened a pull request:
https://github.com/apache/spark/pull/7233
Fixed First and Last aggregates to compute first and last value per Gâ¦
In current implementation, First and Last aggregates were calculating the
values for entire DataFrame partition and then the same value was returned for
all GroupedData in the partition.
Fixed the First and Last aggregates to compute first and last value per
GroupedData instead of entire DataFrame
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ggupta81/spark branch-1.4
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7233.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 #7233
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commit 11db44bddd6d1eb3fe56cb7e9d852ae989aa123d
Author: Gaurav Gupta <[email protected]>
Date: 2015-07-06T05:24:46Z
Fixed First and Last aggregates to compute first and last value per
GroupedData instead of entire DataFrame
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