Github user kiszk commented on a diff in the pull request:
https://github.com/apache/spark/pull/17302#discussion_r107314977
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/object.scala
---
@@ -41,7 +41,20 @@ object CatalystSerde {
}
def generateObjAttr[T : Encoder]: Attribute = {
- AttributeReference("obj", encoderFor[T].deserializer.dataType,
nullable = false)()
+ val deserializer = encoderFor[T].deserializer
+ val dataType = deserializer.dataType
+ val nullable = if (deserializer.childrenResolved) {
--- End diff --
The point is whether `deserializer` is resolved or not. It is not a point
whether `encoderFor[T]` is resolved or not.
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