[jira] [Created] (FLINK-11002) Trigger.clear() will not be called after purged window

[Yuan Yifan (JIRA)]

Yuan Yifan created FLINK-11002:
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             Summary: Trigger.clear() will not be called after purged window
                 Key: FLINK-11002
                 URL: https://issues.apache.org/jira/browse/FLINK-11002
             Project: Flink
          Issue Type: Bug
          Components: Core
    Affects Versions: 1.6.2
            Reporter: Yuan Yifan


The `clear` method 
(org.apache.flink.streaming.api.windowing.triggers.Trigger#clear) will not be 
called while return a `TriggerResult.FIRE_AND_PURGE` in 
onElement/onProcessingTime/onEventTime, this may cause the trigger can't purge 
after trggered the condition.



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