GitHub user yangw1234 opened a pull request:
https://github.com/apache/spark/pull/16820
[SPARK-19471] AggregationIterator does not initialize the generated result
projection before using it
## What changes were proposed in this pull request?
When AggregationIterator generates result projection, it does not call the
initialize method of the Projection class. This will cause a runtime
NullPointerException when the projection involves nondeterministic expressions.
This problem was introduced by #15567.
## How was this patch tested?
manual tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/yangw1234/spark proj
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16820.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 #16820
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commit 7ec5ebf867110f1c0105faee36ee6776ad36aab1
Author: wangyang <[email protected]>
Date: 2017-02-06T12:07:57Z
SPARK-19471
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