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Posted to jira@kafka.apache.org by "Matthias J. Sax (JIRA)" <ji...@apache.org> on 2018/11/19 04:27:00 UTC

[jira] [Assigned] (KAFKA-6567) KStreamWindowReduce can be replaced by KStreamWindowAggregate

     [ https://issues.apache.org/jira/browse/KAFKA-6567?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias J. Sax reassigned KAFKA-6567:
--------------------------------------

    Assignee: Samuel Hawker  (was: Yaswanth Kumar)

> KStreamWindowReduce can be replaced by KStreamWindowAggregate
> -------------------------------------------------------------
>
>                 Key: KAFKA-6567
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6567
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>            Reporter: Guozhang Wang
>            Assignee: Samuel Hawker
>            Priority: Major
>              Labels: newbie
>
> This is a tech debt worth cleaning up: KStreamWindowReduce should be able to be replaced by KStreamWindowAggregate. In fact, we have already done this for session windows, where in {{SessionWindowedKStreamImpl}} we use {{reduceInitializer}}, {{aggregatorForReducer}} and {{mergerForAggregator}} to replace reducer with aggregator.



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