Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/21732#discussion_r235840884
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/encoders/ExpressionEncoder.scala
---
@@ -257,6 +251,11 @@ case class ExpressionEncoder[T](
*/
def isSerializedAsStruct: Boolean =
objSerializer.dataType.isInstanceOf[StructType]
+ /**
+ * Returns true if the type `T` is `Option`.
+ */
+ def isOptionType: Boolean =
classOf[Option[_]].isAssignableFrom(clsTag.runtimeClass)
--- End diff --
what do you mean? What I asked is a code style change, to make the code
more maintainable.
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