Liang-Chi Hsieh ee1304199b [SPARK-21567][SQL] Dataset should work with type alias ... ## What changes were proposed in this pull request? If we create a type alias for a type workable with Dataset, the type alias doesn't work with Dataset. A reproducible case looks like: object C { type TwoInt = (Int, Int) def tupleTypeAlias: TwoInt = (1, 1) } Seq(1).toDS().map(_ => ("", C.tupleTypeAlias)) It throws an exception like: type T1 is not a class scala.ScalaReflectionException: type T1 is not a class at scala.reflect.api.Symbols$SymbolApi$class.asClass(Symbols.scala:275) ... This patch accesses the dealias of type in many places in `ScalaReflection` to fix it. ## How was this patch tested? Added test case. Author: Liang-Chi Hsieh <viirya@gmail.com> Closes #18813 from viirya/SPARK-21567.		2017-08-08 16:12:41 +08:00
..
main	[SPARK-21640][FOLLOW-UP][SQL] added errorifexists on IllegalArgumentException message	2017-08-07 22:41:57 -07:00
test	[SPARK-21567][SQL] Dataset should work with type alias	2017-08-08 16:12:41 +08:00