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Posted to commits@beam.apache.org by "Aviem Zur (JIRA)" <ji...@apache.org> on 2017/03/27 04:51:41 UTC

[jira] [Commented] (BEAM-1805) a new option `asInnerJoin` for CoGroupByKey

    [ https://issues.apache.org/jira/browse/BEAM-1805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15942640#comment-15942640 ] 

Aviem Zur commented on BEAM-1805:
---------------------------------

Have you taken a look at [join-library|https://github.com/apache/beam/blob/master/sdks/java/extensions/join-library/src/main/java/org/apache/beam/sdk/extensions/joinlibrary/Join.java]?

> 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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