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https://issues.apache.org/jira/browse/FLINK-1509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17329863#comment-17329863
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Flink Jira Bot commented on FLINK-1509:
---------------------------------------
This issue has been labeled "stale-minor" for 7 days. It is closed now. If you
are still affected by this or would like to raise the priority of this ticket
please re-open, removing the label "auto-closed" and raise the ticket priority
accordingly.
> Streaming Group Reduce Combiner
> -------------------------------
>
> Key: FLINK-1509
> URL: https://issues.apache.org/jira/browse/FLINK-1509
> Project: Flink
> Issue Type: New Feature
> Components: API / DataSet, Runtime / Task
> Reporter: Fabian Hueske
> Priority: Minor
> Labels: stale-minor
>
> Combiners for GroupReduce operators are currently always (partially) sorting
> their input even if the data is already appropriately sorted.
> It should be relatively easy to add chained and unchained implementations of
> a streaming group reduce combiner strategy .
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