viirya commented on a change in pull request #29947:
URL: https://github.com/apache/spark/pull/29947#discussion_r500711365
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/misc.scala
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@@ -53,51 +53,80 @@ case class PrintToStderr(child: Expression) extends
UnaryExpression {
}
/**
- * A function throws an exception if 'condition' is not true.
+ * Throw with the result of an expression (used for debugging).
*/
@ExpressionDescription(
- usage = "_FUNC_(expr) - Throws an exception if `expr` is not true.",
+ usage = "_FUNC_(expr) - Throws an exception with `expr`.",
examples = """
Examples:
- > SELECT _FUNC_(0 < 1);
- NULL
+ > SELECT _FUNC_('custom error message');
+ java.lang.RuntimeException
+ custom error message
""",
- since = "2.0.0")
-case class AssertTrue(child: Expression) extends UnaryExpression with
ImplicitCastInputTypes {
-
- override def nullable: Boolean = true
-
- override def inputTypes: Seq[DataType] = Seq(BooleanType)
+ since = "3.1.0")
+case class RaiseError(child: Expression) extends UnaryExpression with
ImplicitCastInputTypes {
Review comment:
Oh, looks like it is true.
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