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https://issues.apache.org/jira/browse/FLINK-1780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maximilian Michels closed FLINK-1780.
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Resolution: Fixed
https://github.com/apache/flink/pull/530
Merged as of 033c69f9477c6352865e7e0da01296dd778ffe59
> Rename FlatCombineFunction to GroupCombineFunction
> --------------------------------------------------
>
> Key: FLINK-1780
> URL: https://issues.apache.org/jira/browse/FLINK-1780
> Project: Flink
> Issue Type: Improvement
> Components: Java API, Scala API
> Affects Versions: 0.9
> Reporter: Fabian Hueske
> Assignee: Suneel Marthi
> Priority: Minor
> Labels: starter
> Fix For: 0.9
>
>
> The recently added {{GroupCombineOperator}} requires a
> {{FlatCombineFunction}}, however a {{GroupReduceOperator}} requires a
> {{GroupReduceFunction}}. {{FlatCombineFunction}} and {{GroupReduceFunction}}
> work on the same types of parameters (Iterable and Collector).
> Therefore, I propose to change the name {{FlatCombineFunction}} to
> {{GroupCombineFunction}}. Since the function could not be independently used
> until recently, this API breaking change should be OK.
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