[jira] [Created] (FLINK-12393) Add the user-facing classes of the new type system

[Shang Yuanchun (Jira)]

Timo Walther created FLINK-12393:
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             Summary: Add the user-facing classes of the new type system
                 Key: FLINK-12393
                 URL: https://issues.apache.org/jira/browse/FLINK-12393
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / API
            Reporter: Timo Walther
            Assignee: Timo Walther


FLINK-12253 introduces logical types that will be used mostly internally. Users will use the {{DataType}} stack described in FLIP-37. This issue describes the class hierarchy around this class.



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