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Posted to commits@beam.apache.org by "Thomas Groh (JIRA)" <ji...@apache.org> on 2017/07/12 20:56:00 UTC

[jira] [Updated] (BEAM-2569) Be more precise in what is required to write a valid CombineFn

     [ https://issues.apache.org/jira/browse/BEAM-2569?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Groh updated BEAM-2569:
------------------------------
    Component/s: website

> Be more precise in what is required to write a valid CombineFn
> --------------------------------------------------------------
>
>                 Key: BEAM-2569
>                 URL: https://issues.apache.org/jira/browse/BEAM-2569
>             Project: Beam
>          Issue Type: Bug
>          Components: beam-model, sdk-java-core, sdk-py, website
>            Reporter: Thomas Groh
>
> We should be explicit in requiring merging of accumulators to be associative and commutative, and the ability to include empty accumulators.



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