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https://issues.apache.org/jira/browse/BEAM-1805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15944017#comment-15944017
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ASF GitHub Bot commented on BEAM-1805:
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GitHub user XuMingmin opened a pull request:
https://github.com/apache/beam/pull/2339
[BEAM-1805] a new option `asInnerJoin` for CoGroupByKey
*INNER_JOIN* is available with
[Join](https://github.com/apache/beam/blob/master/sdks/java/extensions/join-library/src/main/java/org/apache/beam/sdk/extensions/joinlibrary/Join.java).
However it's limited to two `PCollection`s, it's helpful to add it to
`CoGroupByKey` for the case with multiple `PCollection` joined.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/XuMingmin/beam BEAM-1805
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/beam/pull/2339.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 #2339
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commit 09df9b5c15dd5b409d9da937225caa073a663255
Author: XuMingmin <[email protected]>
Date: 2017-03-15T21:45:17Z
Merge pull request #3 from apache/master
sync-up code
commit 93929873179a04fb0038400d57b55b3779d7b085
Author: XuMingmin <[email protected]>
Date: 2017-03-24T23:17:00Z
Merge pull request #4 from apache/master
sync up code
commit 62ff6bd83725414aa2ca11d30a5bd7776afe99fa
Author: XuMingmin <[email protected]>
Date: 2017-03-27T18:30:44Z
Merge pull request #5 from apache/master
sync-up code
commit 6f087a085094bd2520094ca0c5c540ae74b31542
Author: mingmxu <[email protected]>
Date: 2017-03-27T20:38:45Z
initial commit
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> a new option `asInnerJoin` for CoGroupByKey
> -------------------------------------------
>
> Key: BEAM-1805
> URL: https://issues.apache.org/jira/browse/BEAM-1805
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Reporter: Xu Mingmin
> Assignee: Xu Mingmin
>
> {{CoGroupByKey}} joins multiple PCollection<KV<K, V>>, act as full-outer join.
> Option {{asInnerJoin()}} restrict the output to convert to an inner-join
> behavior.
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