[jira] [Created] (FLINK-7900) Add a Rich KeySelector

[Hai Zhou UTC+8 (JIRA)]

Hai Zhou UTC+8 created FLINK-7900:
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             Summary: Add a Rich KeySelector
                 Key: FLINK-7900
                 URL: https://issues.apache.org/jira/browse/FLINK-7900
             Project: Flink
          Issue Type: Improvement
          Components: DataStream API
            Reporter: Hai Zhou UTC+8
            Priority: Critical


Currently, we just have a `KeySelector` Function, maybe we should add a 
`RichKeySelector` RichFunction, for the user to read some configuration 
information to build the keySelector they need.



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