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https://issues.apache.org/jira/browse/FLINK-10259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann updated FLINK-10259:
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Fix Version/s: 1.6.2
> Key validation for GroupWindowAggregate is broken
> -------------------------------------------------
>
> Key: FLINK-10259
> URL: https://issues.apache.org/jira/browse/FLINK-10259
> Project: Flink
> Issue Type: Bug
> Components: Table API & SQL
> Reporter: Fabian Hueske
> Assignee: Fabian Hueske
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.7.0, 1.6.2, 1.5.5
>
>
> WindowGroups have multiple equivalent keys (start, end) that should be
> handled differently from other keys. The {{UpdatingPlanChecker}} uses
> equivalence groups to identify equivalent keys but the keys of WindowGroups
> are not correctly assigned to groups.
> This means that we cannot correctly extract keys from queries that use group
> windows.
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