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https://issues.apache.org/jira/browse/FLINK-9855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16545175#comment-16545175
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Kostas Kloudas commented on FLINK-9855:
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Also another 2 comments:
1) we should reconsider if we want such a method as it seems too easy to get it
wrong
2) we may have to check all the calls of `getUnaryOperatorReturnType()` as well.
What do you think [~twalthr]?
> Check all calls to the TypeExtractor.getBinaryOperatorReturnType()
> ------------------------------------------------------------------
>
> Key: FLINK-9855
> URL: https://issues.apache.org/jira/browse/FLINK-9855
> Project: Flink
> Issue Type: Bug
> Components: DataStream API
> Reporter: Timo Walther
> Assignee: Florian Schmidt
> Priority: Blocker
> Fix For: 1.6.0
>
>
> KeyedStream.IntervalJoined is not calling type extraction functions
> correctly. It should have an index.
> Other examples with potentially wrong usage are:
> - process(final BroadcastProcessFunction<IN1, IN2, OUT> function) and
> - flatMap(CoFlatMapFunction<IN1, IN2, R> coFlatMapper
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