Kurt Young created FLINK-16466:
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Summary: Group by on event time should produce insert only result
Key: FLINK-16466
URL: https://issues.apache.org/jira/browse/FLINK-16466
Project: Flink
Issue Type: Improvement
Components: Table SQL / Planner
Affects Versions: 1.10.0
Reporter: Kurt Young
Currently when doing aggregation queries, we can output insert only results
only when grouping by windows. But when users defined event time and also
watermark, we can also support emit insert only results when grouping on event
time. To be more precise, it should only require event time is one of the
grouping keys. One can think of grouping by event time is kind of a special
window, with both window start and window end equals to event time.
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