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[SPARK-15811] [SQL] fix the Python UDF in Scala 2.10 #13717

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[SPARK-15811] [SQL] fix the Python UDF in Scala 2.10 #13717

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db65be5
fix the Python UDF in Scala 2.10
Jun 16, 2016
06e9265
Update ExtractPythonUDFs.scala
Jun 17, 2016
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2 changes: 1 addition & 1 deletion sql/core/src/main/scala/org/apache/spark/sql/execution/python/ExtractPythonUDFs.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -132,7 +132,7 @@ private[spark] object ExtractPythonUDFs extends Rule[SparkPlan] {
val validUdfs = udfs.filter { case udf =>
// Check to make sure that the UDF can be evaluated with only the input of this child.
udf.references.subsetOf(child.outputSet)
}
}.toArray // force the iterator to an array, that can't be serialized in Scala 2.10
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@rxin rxin Jun 16, 2016

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do u mean the iterator couldn't have been serialized in scala 2.10?

maybe say "Turn it into an array since iterators cannot be serialized in Scala 2.10"

if (validUdfs.nonEmpty) {
val resultAttrs = udfs.zipWithIndex.map { case (u, i) =>
AttributeReference(s"pythonUDF$i", u.dataType)()
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