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https://issues.apache.org/jira/browse/BEAM-12011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on BEAM-12011 started by Kenneth Knowles.
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> WindowFn.getOutputTime break joins, adds needless complexity
> ------------------------------------------------------------
>
> Key: BEAM-12011
> URL: https://issues.apache.org/jira/browse/BEAM-12011
> Project: Beam
> Issue Type: Bug
> Components: beam-model
> Reporter: Kenneth Knowles
> Assignee: Kenneth Knowles
> Priority: P2
> Time Spent: 4h
> Remaining Estimate: 0h
>
> See
> https://lists.apache.org/thread.html/r99d0efa70f83815e17a1dbfb94effd16b38176046ac8ffbfe371c895%40%3Cdev.beam.apache.org%3E
> The consensus is that we really shouldn't be producing weird output, even if
> it causes a watermark problem we should solve it another way. It breaks CoGBK
> joins, and new runner authors have even missed the existence of the need to
> call into a UDF (hence implementing SlidingWindows the natural way instead of
> this strange way)
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