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Posted to issues@spark.apache.org by "Ivan SPM (JIRA)" <ji...@apache.org> on 2017/01/05 17:19:59 UTC

[jira] [Created] (SPARK-19087) Numpy types fail to be casted to any other types

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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