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Posted to issues@flink.apache.org by "Vasia Kalavri (JIRA)" <ji...@apache.org> on 2015/11/25 16:13:10 UTC
[jira] [Created] (FLINK-3080) Cannot union a data stream with a
product of itself
Vasia Kalavri created FLINK-3080:
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Summary: 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
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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