Dian Fu created FLINK-14016:
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Summary: Introduce RelNodes FlinkLogicalPythonScalarFunctionExec
and DataStreamPythonScalarFunctionExec which are containers for Python
PythonScalarFunctions
Key: FLINK-14016
URL: https://issues.apache.org/jira/browse/FLINK-14016
Project: Flink
Issue Type: Sub-task
Components: API / Python
Reporter: Dian Fu
Fix For: 1.10.0
Dedicated RelNodes such as FlinkLogicalPythonScalarFunctionExec and
DataStreamPythonScalarFunctionExec should be introduced for Python
ScalarFunction execution. These nodes exists as containers for Python
ScalarFunctions which could be executed in a batch and then we can employ
PythonScalarFunctionOperator for Python ScalarFunction execution.
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