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From "Kenneth Knowles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-41) State for "Set" data, supporting efficient membership checks
Date Tue, 07 Feb 2017 23:16:41 GMT

    [ https://issues.apache.org/jira/browse/BEAM-41?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15856999#comment-15856999
] 

Kenneth Knowles commented on BEAM-41:
-------------------------------------

Also I should mention that starting with BEAM-42 / map state is probably better since SetState
is then probably pretty trivial. But you can check the interfaces in, add support to {{DoFnSignatures}},
etc, without any runner actually implementing them.

> State for "Set" data, supporting efficient membership checks
> ------------------------------------------------------------
>
>                 Key: BEAM-41
>                 URL: https://issues.apache.org/jira/browse/BEAM-41
>             Project: Beam
>          Issue Type: New Feature
>          Components: beam-model
>            Reporter: Kenneth Knowles
>            Assignee: Jingsong Lee
>            Priority: Minor
>              Labels: State
>
> Analogous to how BagState supports efficient blind writes, a SetState would support efficient
membership checking without reading the entire set.



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