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Xu Mingmin commented on BEAM-3749:
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{{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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