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Posted to issues@flink.apache.org by "Aljoscha Krettek (JIRA)" <ji...@apache.org> on 2017/02/28 14:55:45 UTC

[jira] [Updated] (FLINK-5720) Deprecate "Folding" in all of DataStream API

     [ https://issues.apache.org/jira/browse/FLINK-5720?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aljoscha Krettek updated FLINK-5720:
------------------------------------
    Priority: Blocker  (was: Major)

> Deprecate "Folding" in all of DataStream API
> --------------------------------------------
>
>                 Key: FLINK-5720
>                 URL: https://issues.apache.org/jira/browse/FLINK-5720
>             Project: Flink
>          Issue Type: Improvement
>          Components: DataStream API
>            Reporter: Aljoscha Krettek
>            Priority: Blocker
>             Fix For: 1.3.0
>
>
> Folding is an operation that cannot be done incrementally in a distributed way and that also cannot be done on merging windows. Now that we have {{AggregatingState}} and aggregate operations we should deprecate folding in the APIs and deprecate {{FoldingState}}.
> I suggest to remove folding completely in Flink 2.0



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