Michael Styles created SPARK-21692:
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Summary: Modify PythonUDF to support nullability
Key: SPARK-21692
URL: https://issues.apache.org/jira/browse/SPARK-21692
Project: Spark
Issue Type: Improvement
Components: PySpark, SQL
Affects Versions: 2.2.0
Reporter: Michael Styles
When creating or registering Python UDFs, a user may know whether null values
can be returned by the function. PythonUDF and related classes should be
modified to support nullability.
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