Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/16308#discussion_r92915771
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
---
@@ -120,7 +128,10 @@ object Cast {
> SELECT _FUNC_('10' as int);
10
""")
-case class Cast(child: Expression, dataType: DataType) extends
UnaryExpression with NullIntolerant {
+case class Cast(child: Expression, dataType: DataType, zoneId: String =
null)
--- End diff --
not 100% sure whether this is a good idea, but should we consider adding a
Cast.unapply that does not match on zoneId?
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