[jira] [Created] (FLINK-22128) Window aggregation should have unique keys

[Shang Yuanchun (Jira)]

Jingsong Lee created FLINK-22128:
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             Summary: Window aggregation should have unique keys
                 Key: FLINK-22128
                 URL: https://issues.apache.org/jira/browse/FLINK-22128
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Planner
            Reporter: Jingsong Lee
             Fix For: 1.13.0


We should add match method in {{FlinkRelMdUniqueKeys}}



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