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https://issues.apache.org/jira/browse/FLINK-11084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16711041#comment-16711041
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Shimin Yang commented on FLINK-11084:
-------------------------------------
Currently I am creating a OutputSelectorWrapper to hold the current
OutputSelector and all successive parent OutputSelectors and selectNames during
the StreamGraph generation. And in the runtime every record will go through all
the OutputSelectors in the right order.
> Incorrect ouput after two successive split and select
> -----------------------------------------------------
>
> Key: FLINK-11084
> URL: https://issues.apache.org/jira/browse/FLINK-11084
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Reporter: Shimin Yang
> Assignee: Shimin Yang
> Priority: Critical
> Fix For: 1.5.6, 1.6.3, 1.8.0, 1.7.1
>
>
> The second OutputSelector of two successive split and select are actually not
> rely on the first one. They are in the same array of OutputSelector in
> DirectedOutput.
> For example.
> outputSelector1 => \{“name1” or ”name2“}
> outputSelector2 => \{”name3“ or “name4”}
> resultStream =
> dataStream.split(outputSelector1).select("name2").split(outputSelector2).select("name3")
> expectedResult for input \{StreamRecord1}:
> outputSelector1 => \{”name1“}
> outputSelector2 => \{”name3“}
> resultStream => {}
> actualResult:
> resultStream => \{StreamRecord1}
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