Aljoscha Krettek created FLINK-2870:
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Summary: Add support for accumulating/discarding for Event-Time
Windows
Key: FLINK-2870
URL: https://issues.apache.org/jira/browse/FLINK-2870
Project: Flink
Issue Type: Sub-task
Components: Streaming
Reporter: Aljoscha Krettek
Assignee: Aljoscha Krettek
This would allow to specify whether windows should be discarded after the
trigger fires or kept in the operator if late elements arrive.
When keeping elements, the user would also have to specify an allowed lateness
time after which the window contents are discarded without emitting any further
window evaluation result.
If elements arrive after the allowed lateness they would trigger the window
immediately with only the one single element.
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