cloud-fan commented on a change in pull request #30614:
URL: https://github.com/apache/spark/pull/30614#discussion_r540737843
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/misc.scala
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@@ -64,38 +64,81 @@ case class PrintToStderr(child: Expression) extends
UnaryExpression {
custom error message
""",
since = "3.1.0")
-case class RaiseError(child: Expression) extends UnaryExpression with
ImplicitCastInputTypes {
+case class RaiseError(child: Expression, error: Option[Throwable] = None)
+ extends UnaryExpression with ImplicitCastInputTypes {
+
+ def this(child: Expression) = this(child, None)
- override def foldable: Boolean = false
override def nullable: Boolean = true
override def dataType: DataType = NullType
override def inputTypes: Seq[AbstractDataType] = Seq(StringType)
override def prettyName: String = "raise_error"
+ private def errorHashCode: Int = error match {
+ case Some(err) => 31 * err.getClass.hashCode() + err.getMessage.hashCode
+ case None => 0
+ }
+
+ override def hashCode(): Int = 31 * child.hashCode() + errorHashCode
+
+ private def errorEquals(other: Option[Throwable]): Boolean = (error, other)
match {
+ case (Some(e), Some(o)) => e.getClass == o.getClass && e.getMessage ==
o.getMessage
Review comment:
is this to skip comparing the stacktrace?
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