[jira] [Created] (FLINK-10979) Add support for group keys in Unbounded Aggregate/FlatAggregate operator

[Shang Yuanchun (Jira)]

sunjincheng created FLINK-10979:
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             Summary: Add support for group keys in Unbounded Aggregate/FlatAggregate operator
                 Key: FLINK-10979
                 URL: https://issues.apache.org/jira/browse/FLINK-10979
             Project: Flink
          Issue Type: Sub-task
          Components: Table API & SQL
            Reporter: sunjincheng
             Fix For: 1.8.0


Add support for group keys in Aggregate/FlatAggregate operator, the detail will be described in [Google doc|https://docs.google.com/document/d/1tnpxg31EQz2-MEzSotwFzqatsB4rNLz0I-l_vPa5H4Q/edit#heading=h.q23rny2iglsr].



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