[jira] [Created] (FLINK-5921) Adapt time mode indicator functions return custom data types

[Shang Yuanchun (Jira)]

Fabian Hueske created FLINK-5921:
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             Summary: Adapt time mode indicator functions return custom data types
                 Key: FLINK-5921
                 URL: https://issues.apache.org/jira/browse/FLINK-5921
             Project: Flink
          Issue Type: Improvement
          Components: Table API & SQL
    Affects Versions: 1.3.0
            Reporter: Fabian Hueske
            Assignee: Fabian Hueske


The functions that indicate event time ({{rowtime()}}) and processing time ({{proctime()}}) are defined to return {{TIMESTAMP}}.

These functions should be updated to return custom types in order to ease the identification of the time semantics during optimization.



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