Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/20771#discussion_r173155528
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala
---
@@ -599,8 +610,71 @@ case class MapObjects private(
override def children: Seq[Expression] = lambdaFunction :: inputData ::
Nil
- override def eval(input: InternalRow): Any =
- throw new UnsupportedOperationException("Only code-generated
evaluation is supported")
+ // The data with PythonUserDefinedType are actually stored with the data
type of its sqlType.
+ // When we want to apply MapObjects on it, we have to use it.
+ lazy private val inputDataType = inputData.dataType match {
+ case p: PythonUserDefinedType => p.sqlType
--- End diff --
Please use the `UserDefinedType` super class here.
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