[jira] [Created] (FLINK-14342) Remove method FunctionDefinition#getLanguage

[Shang Yuanchun (Jira)]

Dian Fu created FLINK-14342:
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             Summary: Remove method FunctionDefinition#getLanguage
                 Key: FLINK-14342
                 URL: https://issues.apache.org/jira/browse/FLINK-14342
             Project: Flink
          Issue Type: Sub-task
          Components: API / Python, Table SQL / API
    Affects Versions: 1.10.0
            Reporter: Dian Fu
             Fix For: 1.10.0


As discussed in [https://github.com/apache/flink/pull/9748#discussion_r329575228], all the Python *ScalarFunction* need to implement the interface *PythonFunction* and we can determine if a ScalarFunction is Python or not via if it's an instance of *PythonFunction*, the method *FunctionDefinition#getLanguage* is not needed any more.



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