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https://issues.apache.org/jira/browse/SPARK-22965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16312232#comment-16312232
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Apache Spark commented on SPARK-22965:
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User 'gatorsmile' has created a pull request for this issue:
https://github.com/apache/spark/pull/20162
> Add deterministic parameter to registerJavaFunction
> ---------------------------------------------------
>
> Key: SPARK-22965
> URL: https://issues.apache.org/jira/browse/SPARK-22965
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 2.3.0
> Reporter: Xiao Li
> Assignee: Xiao Li
>
> To register a JAVA UDF in PySpark, users are unable to specify the registered
> UDF is not deterministic. The proposal is to add the extra parameter
> deterministic at the end of the function registerJavaFunction
> Below is an example.
> {noformat}
> >>> from pyspark.sql.types import DoubleType
> >>> sqlContext.registerJavaFunction("javaRand",
> ... "test.org.apache.spark.sql.JavaRandUDF", DoubleType(),
> deterministic=False)
> >>> sqlContext.sql("SELECT javaRand(3)").collect() # doctest: +SKIP
> [Row(UDF:javaRand(3)=3.12345)]
> {noformat}
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