Jark Wu created FLINK-19059:
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Summary: Support to consume retractions for OVER WINDOW operator
Key: FLINK-19059
URL: https://issues.apache.org/jira/browse/FLINK-19059
Project: Flink
Issue Type: New Feature
Components: Table SQL / Planner
Reporter: Jark Wu
Currently, OVER WINDOW in streaming SQL only support to consume insert-only
stream and doesn't support to consume retractions (i.e. contains UPDATE/DELETE
messages). This results in OVER WINDOW can't be used to follow after unbounded
group by or streaming join.
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