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https://issues.apache.org/jira/browse/SPARK-11775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen updated SPARK-11775:
------------------------------
    Assignee: Jeff Zhang

> Allow PySpark to register Java UDF
> ----------------------------------
>
>                 Key: SPARK-11775
>                 URL: https://issues.apache.org/jira/browse/SPARK-11775
>             Project: Spark
>          Issue Type: New Feature
>          Components: PySpark, SQL
>            Reporter: Jeff Zhang
>            Assignee: Jeff Zhang
>             Fix For: 2.1.0
>
>
> Currently pyspark can only call the builtin java UDF, but can not call custom 
> java UDF. It would be better to allow that. 2 benefits:
> * Leverage the power of rich third party java library
> * Improve the performance. Because if we use python UDF, python daemons will 
> be started on worker which will affect the performance. 



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