[jira] [Created] (FLINK-11702) Introduce a new table type system: InternalType

[Shang Yuanchun (Jira)]

Jingsong Lee created FLINK-11702:
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             Summary: Introduce a new table type system: InternalType
                 Key: FLINK-11702
                 URL: https://issues.apache.org/jira/browse/FLINK-11702
             Project: Flink
          Issue Type: New Feature
          Components: Table API & SQL
            Reporter: Jingsong Lee
            Assignee: Jingsong Lee


After FLINK-11701 , A type will correspond to two data formats. We continue to use TypeInformation to represent the calculation of the Table layer is not suitable, because TypeInformation is bound to the physical format.
Introducing InternalType, which is a lightweight form, the table layer uses enumerations for CodeGen and calculations.



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