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From "godfrey he (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-12076) Add support for generating optimized logical plan for batch simple group aggregate
Date Mon, 01 Apr 2019 08:42:00 GMT
godfrey he created FLINK-12076:
----------------------------------

             Summary: Add support for generating optimized logical plan for batch simple group
aggregate
                 Key: FLINK-12076
                 URL: https://issues.apache.org/jira/browse/FLINK-12076
             Project: Flink
          Issue Type: New Feature
          Components: Table SQL / Planner
            Reporter: godfrey he
            Assignee: godfrey he


To distinguish Window aggregate and Over aggregate, we call the `GROUP BY` aggregate as group
aggregate.

This issue only involves batch group aggregate, stream group aggregate will be finished in
new issue due to retraction derivation.

complex group aggregate(including GROUP SETS and DISTINCT) will also be finished in new issue.





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