[jira] [Created] (FLINK-14978) Introduce constraint class hierarchy required for primary keys

[Shang Yuanchun (Jira)]

Dawid Wysakowicz created FLINK-14978:
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             Summary: Introduce constraint class hierarchy required for primary keys
                 Key: FLINK-14978
                 URL: https://issues.apache.org/jira/browse/FLINK-14978
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / API
            Reporter: Dawid Wysakowicz
            Assignee: Dawid Wysakowicz






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