allisonwang-db commented on a change in pull request #35404:
URL: https://github.com/apache/spark/pull/35404#discussion_r805016815
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/unresolved.scala
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@@ -645,4 +645,9 @@ case class TempResolvedColumn(child: Expression, nameParts:
Seq[String]) extends
override def dataType: DataType = child.dataType
override protected def withNewChildInternal(newChild: Expression):
Expression =
copy(child = newChild)
+
+ override def sql: String = {
+ val childrenSQL = children.map(_.sql).mkString(", ")
Review comment:
`child.sql`?
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