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https://issues.apache.org/jira/browse/FLINK-20312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Knauf reopened FLINK-20312:
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Re-opening in accordance with https://issues.apache.org/jira/browse/FLINK-23206.
> The documentation is incomplete
> -------------------------------
>
> Key: FLINK-20312
> URL: https://issues.apache.org/jira/browse/FLINK-20312
> Project: Flink
> Issue Type: Improvement
> Components: API / DataStream, Documentation
> Affects Versions: 1.11.0
> Reporter: sxb
> Priority: Minor
> Labels: auto-closed, documentation
>
> In this
> [document|https://github.com/apache/flink/blob/master/docs/dev/stream/operators/windows.md],
> Under Triggers, TriggerResult's action is incomplete
> The description of PURGE is missing after and，As follows.
>
> 1) The first three decide how to act on their invocation event by returning a
> {{TriggerResult}}. The action can be one of the following:
> * {{CONTINUE}}: do nothing,
> * {{FIRE}}: trigger the computation,
> * {{PURGE}}: clear the elements in the window, {color:#FF0000}and{color}
> * {{FIRE_AND_PURGE}}: trigger the computation and clear the elements in the
> window afterwards.
>
> Description in the source code
> /**
> * All elements in the window are cleared and the window is discarded,
> * without evaluating the window function or emitting any elements.
> */
> PURGE(false, true);
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