Github user clockfly commented on a diff in the pull request:
https://github.com/apache/spark/pull/14850#discussion_r77292898
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/ScalaUDF.scala
---
@@ -1039,9 +1033,18 @@ case class ScalaUDF(
(convert, argTerm)
}.unzip
- val callFunc = s"${ctx.boxedType(dataType)} $resultTerm = " +
- s"(${ctx.boxedType(dataType)})${catalystConverterTerm}" +
- s".apply($funcTerm.apply(${funcArguments.mkString(", ")}));"
+ val getFuncResult = s"$funcTerm.apply(${funcArguments.mkString(", ")})"
+ val rethrowException = "throw new org.apache.spark.SparkException" +
+ """("Exception happens when execute user code in Scala UDF.", e);"""
--- End diff --
Exception happens when `executing` user defined function (className: input
argument type => output argument type) .
Or
`Failed to execute user defined function (className: input argument type =>
output argument type)
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