GitHub user s1ck opened a pull request:
https://github.com/apache/flink/pull/2527
[FLINK-4624] Allow for null values in Graph Summarization
* Bug was caused by serializers that cannot handle null values (e.g. Long)
* VertexGroupItem now uses Either<NullValue, VV> instead of VV
* Generalized test cases
* Added tests for vertex/edge values of type Long
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/s1ck/flink FLINK-4624
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/2527.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 #2527
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commit e6db894d6b84cf95206905a6f1a6713f78e32988
Author: Martin Junghanns <martin.jungha...@gmx.net>
Date: 2016-09-21T11:31:41Z
[FLINK-4624] Support null values in Graph Summarization
* Bug was caused by serializers that cannot handle null values (e.g. Long)
* VertexGroupItem now uses Either<NullValue, VV> instead of VV
* Generalized test cases
* Added tests for vertex/edge values of type Long
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