[jira] [Created] (FLINK-20621) Refactor the TypeInformation implementation in Python DataStream API

[Shang Yuanchun (Jira)]

Shuiqiang Chen created FLINK-20621:
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             Summary: Refactor the TypeInformation implementation in Python DataStream API
                 Key: FLINK-20621
                 URL: https://issues.apache.org/jira/browse/FLINK-20621
             Project: Flink
          Issue Type: Improvement
          Components: API / Python
            Reporter: Shuiqiang Chen
             Fix For: 1.12.0


Currently, when users declare a TypeInfo in Python DataStream job it will create a Java TypeInfo instance when instantiating. We should make it in a lazy style that creates the Java TypeInfo instance only when calling TypeInformation.get_java_type_info().



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