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From "Aljoscha Krettek (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (FLINK-3080) Cannot union a data stream with a product of itself
Date Wed, 02 Dec 2015 11:21:10 GMT

     [ https://issues.apache.org/jira/browse/FLINK-3080?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aljoscha Krettek resolved FLINK-3080.
-------------------------------------
       Resolution: Fixed
    Fix Version/s: 0.10.2
                   1.0.0

Fixed in https://github.com/aljoscha/flink/commit/b8fa5b87766c0c182519686244b1cc2554de4754

> Cannot union a data stream with a product of itself
> ---------------------------------------------------
>
>                 Key: FLINK-3080
>                 URL: https://issues.apache.org/jira/browse/FLINK-3080
>             Project: Flink
>          Issue Type: Bug
>          Components: Streaming
>    Affects Versions: 0.10.0
>            Reporter: Vasia Kalavri
>            Assignee: Aljoscha Krettek
>             Fix For: 1.0.0, 0.10.2
>
>
> Currently it is not possible to union a stream with itself or a product of itself.
> For example, the following code
> {{stream.union(stream.map(...))}}
> fails with this exception: "A DataStream cannot be unioned with itself".
> The documentation currently states that "If you union a data stream with itself you will
still only get each element once." and should also be updated.



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