Github user mt40 commented on a diff in the pull request:
https://github.com/apache/spark/pull/22309#discussion_r224944923
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/ScalaReflectionSuite.scala
---
@@ -108,6 +108,16 @@ object TestingUDT {
}
}
+object TestingValueClass {
+ case class IntWrapper(i: Int) extends AnyVal
--- End diff --
It doesn't but since Spark only supports `case class` (not `class`) for
schema type. So I keep it that way.
Child columns can be `class` though. I think adding that in the future on
top of this is not difficult.
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