[jira] [Created] (FLINK-5900) Add non-partial merge Aggregates and unit tests

[Shang Yuanchun (Jira)]

Shaoxuan Wang created FLINK-5900:
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             Summary: Add non-partial merge Aggregates and unit tests
                 Key: FLINK-5900
                 URL: https://issues.apache.org/jira/browse/FLINK-5900
             Project: Flink
          Issue Type: Improvement
            Reporter: Shaoxuan Wang
            Assignee: Shaoxuan Wang


Current built-in aggregates all support partial-merge. We are blind and not sure if the non-partial aggregate works or not. We should add non-partial merge Aggregates and unit tests.



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