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https://issues.apache.org/jira/browse/FLINK-6970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17336734#comment-17336734
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Flink Jira Bot commented on FLINK-6970:
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This issue was labeled "stale-major" 7 ago and has not received any updates so
it is being deprioritized. If this ticket is actually Major, please raise the
priority and ask a committer to assign you the issue or revive the public
discussion.
> Add support for late data updates to group window aggregates
> ------------------------------------------------------------
>
> Key: FLINK-6970
> URL: https://issues.apache.org/jira/browse/FLINK-6970
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / API
> Reporter: Fabian Hueske
> Priority: Major
> Labels: stale-major
>
> Late arriving data is a common issue for group window aggregates. At the
> moment, the Table API simply drops late arriving records. Another approach
> are deferred computation (FLINK-6969) and late data updates.
> This issue proposes to add late data updates for group window aggregates.
> Instead of discarding the state of a window when the result has been
> computed, the state is kept for a certain time interval. If a late record for
> a window is received within this interval, an updated result is emitted (and
> the previous result is retracted).
> This feature will require a new parameter to the {{QueryConfig}} to configure
> the size of the late data interval.
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