Shuo Cheng created FLINK-23310:
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Summary: Correct the `ModifyKindSetTrait` for
`GroupWindowAggregate` when the input is an update stream
Key: FLINK-23310
URL: https://issues.apache.org/jira/browse/FLINK-23310
Project: Flink
Issue Type: Bug
Components: Table SQL / API
Affects Versions: 1.13.0
Reporter: Shuo Cheng
Fix For: 1.14.0
Following FLINK-22781, currently group window supports update input stream,
just like unbounded aggregate, group window may also emit DELETE records, so
the `ModifyKindSetTrait` for group window should be modified as well.
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