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https://issues.apache.org/jira/browse/BEAM-12483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17380056#comment-17380056
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Beam JIRA Bot commented on BEAM-12483:
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This issue is assigned but has not received an update in 30 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> SQL: Swapping arguments in HOP window results in invalid window assignment
> --------------------------------------------------------------------------
>
> Key: BEAM-12483
> URL: https://issues.apache.org/jira/browse/BEAM-12483
> Project: Beam
> Issue Type: Bug
> Components: dsl-sql
> Affects Versions: 2.31.0
> Reporter: Jan Lukavský
> Assignee: Jan Lukavský
> Priority: P2
> Labels: stale-assigned
>
> If we (by mistake) swap arguments of HOP window, we end-up with invalid
> WindowFn, that can produce empty windows, which then subsequently results in
> {{java.lang.IllegalArgumentException: WindowedValue requires windows, but
> there were none}}
> We need to verify that the arguments are correct prior to constructing the
> WindowFn.
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