cloud-fan commented on a change in pull request #31150:
URL: https://github.com/apache/spark/pull/31150#discussion_r555728031
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/misc.scala
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@@ -66,11 +66,12 @@ case class PrintToStderr(child: Expression) extends
UnaryExpression {
""",
since = "3.1.0",
group = "misc_funcs")
-case class RaiseError(child: Expression) extends UnaryExpression with
ImplicitCastInputTypes {
+case class RaiseError private[spark] (child: Expression, returnType: DataType)
+ extends UnaryExpression with ImplicitCastInputTypes {
override def foldable: Boolean = false
override def nullable: Boolean = true
- override def dataType: DataType = NullType
+ override def dataType: DataType = returnType
Review comment:
nit: the constructor parameter can be `dataType` directly, then we don't
need this override.
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