cloud-fan commented on a change in pull request #30923:
URL: https://github.com/apache/spark/pull/30923#discussion_r549710753



##########
File path: 
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/randomExpressions.scala
##########
@@ -47,10 +46,8 @@ abstract class RDG extends UnaryExpression with 
ExpectsInputTypes with Stateful
   override def seedExpression: Expression = child
 
   @transient protected lazy val seed: Long = seedExpression match {
-    case Literal(s, IntegerType) => s.asInstanceOf[Int]
-    case Literal(s, LongType) => s.asInstanceOf[Long]
-    case _ => throw new AnalysisException(
-      s"Input argument to $prettyName must be an integer, long or null 
literal.")
+    case e if e.dataType == IntegerType => e.eval().asInstanceOf[Int]
+    case e if e.dataType == LongType => e.eval().asInstanceOf[Long]

Review comment:
       Oh, the scala 2.13 build is not checked for a while because GA is 
broken. Let's fix them in a batch.




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