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Posted to issues@flink.apache.org by "Aljoscha Krettek (JIRA)" <ji...@apache.org> on 2015/12/02 12:22:10 UTC
[jira] [Comment Edited] (FLINK-3080) Cannot union a data stream
with a product of itself
[ https://issues.apache.org/jira/browse/FLINK-3080?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15035660#comment-15035660 ]
Aljoscha Krettek edited comment on FLINK-3080 at 12/2/15 11:21 AM:
-------------------------------------------------------------------
Fixed in https://github.com/apache/flink/commit/04b38028dd3d3452cf3b2f1dbcec3cee6a9ac1db
was (Author: aljoscha):
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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