[jira] [Created] (FLINK-18809) Update internal aggregate functions to new type system

[Shang Yuanchun (Jira)]

Timo Walther created FLINK-18809:
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             Summary: Update internal aggregate functions to new type system
                 Key: FLINK-18809
                 URL: https://issues.apache.org/jira/browse/FLINK-18809
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / Planner
            Reporter: Timo Walther
            Assignee: Timo Walther


Imperative aggregate functions use the old type system for computation. After FLINK-15803 is completed, we can update those implementations.



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