[jira] [Created] (FLINK-18200) Replace the deprecated interfaces with the new interfaces in the tests and examples

[Shang Yuanchun (Jira)]

Dian Fu created FLINK-18200:
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             Summary: Replace the deprecated interfaces with the new interfaces in the tests and examples
                 Key: FLINK-18200
                 URL: https://issues.apache.org/jira/browse/FLINK-18200
             Project: Flink
          Issue Type: Improvement
          Components: API / Python
            Reporter: Dian Fu
             Fix For: 1.12.0


Currently, there are a few deprecated interfaces which are still heavily used in the tests and examples, e.g. register_function, etc. We should improve the tests to use the new interfaces, such as create_temporary_system_function instead.



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