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Posted to issues@flink.apache.org by "Martijn Visser (Jira)" <ji...@apache.org> on 2022/10/20 09:52:00 UTC

[jira] [Commented] (FLINK-29692) Support early/late fires for Windowing TVFs

    [ https://issues.apache.org/jira/browse/FLINK-29692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17620957#comment-17620957 ] 

Martijn Visser commented on FLINK-29692:
----------------------------------------

[~godfrey] [~jark] [~jingzhang] WDYT?

> Support early/late fires for Windowing TVFs
> -------------------------------------------
>
>                 Key: FLINK-29692
>                 URL: https://issues.apache.org/jira/browse/FLINK-29692
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table SQL / Planner
>    Affects Versions: 1.15.2
>            Reporter: Canope Nerda
>            Priority: Major
>
> I have cases where I need to 1) output data as soon as possible and 2) handle late arriving data to achieve eventual correctness. In the logic, I need to do window deduplication which is based on Windowing TVFs and according to source code, early/late fires are not supported yet in Windowing TVFs.
> Actually 1) contradicts with 2). Without early/late fires, we had to compromise, either live with fresh incorrect data or tolerate excess latency for correctness.



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