Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/9909#discussion_r45688550
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypeExtractors.scala
---
@@ -97,18 +97,15 @@ object ExtractValue {
* Returns the value of fields in the Struct `child`.
*
* No need to do type checking since it is handled by [[ExtractValue]].
- * TODO: Unify with [[GetInternalRowField]], remove the need to specify a
[[StructField]].
*/
-case class GetStructField(child: Expression, field: StructField, ordinal:
Int)
+case class GetStructField(child: Expression, ordinal: Int, name:
Option[String] = None)
--- End diff --
Oh, then document that :)
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