[jira] [Created] (FLINK-6870) Combined batch and stream TableSource can not produce same time attributes

[Shang Yuanchun (Jira)]

Timo Walther created FLINK-6870:
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             Summary: Combined batch and stream TableSource can not produce same time attributes
                 Key: FLINK-6870
                 URL: https://issues.apache.org/jira/browse/FLINK-6870
             Project: Flink
          Issue Type: Bug
          Components: Table API & SQL
            Reporter: Timo Walther


If a class implements both {{BatchTableSource}} and {{StreamTableSource}}, it is not possible to declare a time attribute which is valid for both environments. For batch it should be a regular field, but not for streaming. The {{getReturnType}} method does not know the environment in which it is called.



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