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https://issues.apache.org/jira/browse/FLINK-13879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-13879:
-----------------------------------
Labels: auto-deprioritized-major auto-deprioritized-minor (was:
auto-deprioritized-major stale-minor)
Priority: Not a Priority (was: Minor)
This issue was labeled "stale-minor" 7 days ago and has not received any
updates so it is being deprioritized. If this ticket is actually Minor, please
raise the priority and ask a committer to assign you the issue or revive the
public discussion.
> It seems that there might be some problem with the
> DataStream.keyBy(xx).maxBy(yy)
> ---------------------------------------------------------------------------------
>
> Key: FLINK-13879
> URL: https://issues.apache.org/jira/browse/FLINK-13879
> Project: Flink
> Issue Type: Bug
> Components: API / DataStream
> Affects Versions: 1.9.0
> Reporter: liusong
> Priority: Not a Priority
> Labels: auto-deprioritized-major, auto-deprioritized-minor
> Attachments: image-2019-08-28-09-01-32-356.png,
> image-2019-08-28-09-02-18-077.png, image-2019-08-28-09-02-47-835.png
>
>
> following error:
> !image-2019-08-28-09-02-18-077.png!
> !image-2019-08-28-09-02-47-835.png!
> Because this 'RowTypeInfo' is subclass of 'TupleTypeInfoBase' ，so
> 'typeInfo.isTupleType()' always return true when the typeInfo is
> RowTypeInfo,then enter 'else if (typeInfo.isTupleType())'，but why do it do
> that 'TupleTypeInfo tupleTypeInfo = (TupleTypeInfo) typeInfo'?it is work when
> i try to use 'TupleTypeInfoBase tupleTypeInfo = (TupleTypeInfoBase) typeInfo'
> instead of it。
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