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From "Kenneth Knowles (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (BEAM-3749) support customized trigger/accumulationMode in BeamSql
Date Wed, 07 Mar 2018 20:14:00 GMT

    [ https://issues.apache.org/jira/browse/BEAM-3749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16390129#comment-16390129
] 

Kenneth Knowles edited comment on BEAM-3749 at 3/7/18 8:13 PM:
---------------------------------------------------------------

What I mean is that the windowing itself is set up in the SQL via using TUMBLE/HOP/SESSION.
That is independent of the trigger. If the CLI sets up the trigger using {{Window.configure()}}
and then the SQL set up the WindowFn then it will work.


was (Author: kenn):
What I mean is that the windowing itself is set up in the SQL via using TUMBLE/HOP/SESSION.
That is independent of the trigger.

> support customized trigger/accumulationMode in BeamSql
> ------------------------------------------------------
>
>                 Key: BEAM-3749
>                 URL: https://issues.apache.org/jira/browse/BEAM-3749
>             Project: Beam
>          Issue Type: Improvement
>          Components: dsl-sql
>            Reporter: Xu Mingmin
>            Assignee: Xu Mingmin
>            Priority: Major
>             Fix For: 2.5.0
>
>          Time Spent: 2h 10m
>  Remaining Estimate: 0h
>
> Currently BeamSql use {{DefaultTrigger}} for aggregation operations. 
> By adding two options {{withTrigger(Trigger)}} and {{withAccumulationMode(AccumulationMode)}},
developers can specify their own aggregation strategies with BeamSql.
> [~xumingming] [~kedin] [~kenn] for any comments.



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