diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/ScalaReflection.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/ScalaReflection.scala index 792ef6cee6f5d..196695a0a188f 100644 --- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/ScalaReflection.scala +++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/ScalaReflection.scala @@ -41,6 +41,9 @@ object ScalaReflection { /** Returns a catalyst DataType for the given Scala Type using reflection. */ def schemaFor(tpe: `Type`): DataType = tpe match { + case t if t <:< typeOf[Option[_]] => + val TypeRef(_, _, Seq(optType)) = t + schemaFor(optType) case t if t <:< typeOf[Product] => val params = t.member("": TermName).asMethod.paramss StructType( @@ -59,9 +62,6 @@ object ScalaReflection { case t if t <:< typeOf[String] => StringType case t if t <:< typeOf[Timestamp] => TimestampType case t if t <:< typeOf[BigDecimal] => DecimalType - case t if t <:< typeOf[Option[_]] => - val TypeRef(_, _, Seq(optType)) = t - schemaFor(optType) case t if t <:< typeOf[java.lang.Integer] => IntegerType case t if t <:< typeOf[java.lang.Long] => LongType case t if t <:< typeOf[java.lang.Double] => DoubleType