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From "Xu Mingmin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-3749) support customized trigger/accumulationMode in BeamSql
Date Tue, 27 Feb 2018 00:55:00 GMT

    [ https://issues.apache.org/jira/browse/BEAM-3749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16377862#comment-16377862
] 

Xu Mingmin commented on BEAM-3749:
----------------------------------

{{Window.triggering(trigger).discardingFiredPanes()}} is not valid so far, is it a work-in-progress
feature? It's always {{Window.into(...).triggering(...)...}}.

Currently TUMBLE/HOP/SESSION doesn't take Trigger parameter and IMO it's {{DefaultTrigger}}
as no Trigger is set explicitly, +[~kedin] for comments. 

> 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: 2.4.0
>
>
> 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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