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https://issues.apache.org/jira/browse/SPARK-7701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14550143#comment-14550143
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Liang-Chi Hsieh commented on SPARK-7701:
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I meant wrapping ExamplePoint in Products, not making it as case class.
> UDT not working
> ---------------
>
> Key: SPARK-7701
> URL: https://issues.apache.org/jira/browse/SPARK-7701
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.3.0, 1.3.1
> Reporter: bogdan baraila
>
> Using a UserDefinedType fails with the next exception:
> {code}
> ExamplePointUDT cannot be cast to org.apache.spark.sql.types.StructType
> java.lang.ClassCastException:
> ExamplePointUDT cannot be cast to org.apache.spark.sql.types.StructType
> at org.apache.spark.sql.SQLContext.createDataFrame(SQLContext.scala:316)
> {code}
> I'm using a basic example with the ExamplePointUdt from spark framework:
> {code}
> test("udt serialisation") {
> val points = Seq(new ExamplePoint(1.3, 1.6), new ExamplePoint(1.3, 1.8))
> val df = SparkContextForStdout.context.parallelize(points).toDF()
> }
> {code}
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