[jira] [Created] (FLINK-5094) Support RichReduceFunction and RichFoldFunction as incremental window aggregation functions

[Shang Yuanchun (Jira)]

Fabian Hueske created FLINK-5094:
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             Summary: Support RichReduceFunction and RichFoldFunction as incremental window aggregation functions
                 Key: FLINK-5094
                 URL: https://issues.apache.org/jira/browse/FLINK-5094
             Project: Flink
          Issue Type: Improvement
          Components: Windowing Operators
    Affects Versions: 1.1.3, 1.2.0
            Reporter: Fabian Hueske


Support {{RichReduceFunction}} and {{RichFoldFunction}} as incremental window aggregation functions in order to initialize the functions via {{open()}].



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