Ivan SPM created SPARK-19087:
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Summary: Numpy types fail to be casted to any other types
Key: SPARK-19087
URL: https://issues.apache.org/jira/browse/SPARK-19087
Project: Spark
Issue Type: Bug
Components: PySpark
Affects Versions: 1.6.0
Environment: Red Hat 6.6, Spark 1.6.0, Python 2.7.10 (anaconda)
Reporter: Ivan SPM
Priority: Minor
An UDF cannot return a numpy type, it has to be one of the Python basic types.
The error when a numpy type is returned is
TypeError: ufunc 'nan' not supported for the input types, and the inputs could
not be safely coerced to any supported types according to the casting rule
''safe''
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