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https://issues.apache.org/jira/browse/FLINK-24001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17437723#comment-17437723
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JING ZHANG commented on FLINK-24001:
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[~icshuo] Session window belongs to set-semantic window which requires input
stream partitioned by keys. The discussion here is how to deal with
row-semantic window (tumbling, hop, cumulate window).
> Support evaluating individual window table-valued function in runtime
> ---------------------------------------------------------------------
>
> Key: FLINK-24001
> URL: https://issues.apache.org/jira/browse/FLINK-24001
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Runtime
> Affects Versions: 1.15.0
> Reporter: JING ZHANG
> Priority: Major
>
> {{Currently, window table-valued function has to be used with other window
> operation, such as window aggregate, window topN and window join. }}
> {{In the ticket, we aim to support evaluating individual window table-valued
> function in runtime, which means, introduce an operator to handle this.}}
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