Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7420#discussion_r34712406
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/HiveTypeCoercion.scala
---
@@ -713,27 +713,22 @@ object HiveTypeCoercion {
@Nullable val ret: Expression = (inType, expectedType) match {
// If the expected type is already a parent of the input type, no
need to cast.
- case _ if expectedType.isSameType(inType) => e
+ case _ if expectedType.acceptsType(inType) => e
--- End diff --
there was a reason, but i can't remember why right now. let me think about
it.
cc @marmbrus do you remember why?
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