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https://issues.apache.org/jira/browse/FLINK-14015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hequn Cheng reassigned FLINK-14015:
-----------------------------------
Assignee: Dian Fu
> Introduce PythonScalarFunctionOperator as a standalone StreamOperator for
> Python ScalarFunction execution
> ---------------------------------------------------------------------------------------------------------
>
> Key: FLINK-14015
> URL: https://issues.apache.org/jira/browse/FLINK-14015
> Project: Flink
> Issue Type: Sub-task
> Components: API / Python
> Reporter: Dian Fu
> Assignee: Dian Fu
> Priority: Major
> Fix For: 1.10.0
>
>
> PythonScalarFunctionOperator is a standalone StreamOperator and it doesn’t
> need to how the Python ScalarFunctions are executed which is the
> responsibility of PythonScalarFunctionRunner:
> # It is a StreamOperator which employs PythonScalarFunctionRunner for Python
> ScalarFunction execution
> # It sends input elements to PythonScalarFunctionRunner, fetches the
> execution results, constructs the result rows and sends them to the
> downstream operator
> # It should handle the checkpoint and watermark properly
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