maropu commented on a change in pull request #28392:
URL: https://github.com/apache/spark/pull/28392#discussion_r416591617
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/randomExpressions.scala
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@@ -102,6 +102,8 @@ case class Rand(child: Expression) extends RDG with
ExpressionWithRandomSeed {
}
override def freshCopy(): Rand = Rand(child)
+
+ override def sql: String = "rand()"
Review comment:
Ur, I see... I just want to reomve a non-deterministic number in a
column name when no argument given. I need more time to think of it...
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