Ngone51 commented on a change in pull request #29106:
URL: https://github.com/apache/spark/pull/29106#discussion_r768322245
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/ScalaUDF.scala
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@@ -59,6 +59,12 @@ case class ScalaUDF(
override def toString: String =
s"${udfName.getOrElse("UDF")}(${children.mkString(", ")})"
+ override lazy val canonicalized: Expression = {
+ // SPARK-32307: `ExpressionEncoder` can't be canonicalized, and
technically we don't
+ // need it to identify a `ScalaUDF`.
+ Canonicalize.execute(copy(children = children.map(_.canonicalized),
inputEncoders = Nil))
Review comment:
Make sense. I'll do a follow-up.
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