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https://issues.apache.org/jira/browse/BEAM-1571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15886842#comment-15886842
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ASF GitHub Bot commented on BEAM-1571:
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GitHub user tgroh opened a pull request:
https://github.com/apache/beam/pull/2120
[BEAM-1571] Add a test for FlattenPCollectionList on a singleton list
Be sure to do all of the following to help us incorporate your contribution
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---
This test validates that the output PCollection of a Flatten with a
single input PCollection contains the contents of the input PCollection.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tgroh/beam flatten_singleton_test
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/beam/pull/2120.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 #2120
----
----
> Flatten on a single input PCollection should have a test associated with it
> ---------------------------------------------------------------------------
>
> Key: BEAM-1571
> URL: https://issues.apache.org/jira/browse/BEAM-1571
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Thomas Groh
> Assignee: Thomas Groh
>
> The expected behavior is that an output PCollection containing all of the
> elements of the input PCollection is produced.
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