Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7504#discussion_r34962181
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/types/DataType.scala ---
@@ -79,7 +79,7 @@ abstract class DataType extends AbstractDataType {
override private[sql] def defaultConcreteType: DataType = this
- override private[sql] def acceptsType(other: DataType): Boolean = this
== other
+ override private[sql] def acceptsType(other: DataType): Boolean =
sameType(other)
--- End diff --
cc @cloud-fan
This is changed to test sameType in order to support ArrayType(StringType)
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