Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/20981#discussion_r180475548
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/InternalRow.scala ---
@@ -119,4 +119,28 @@ object InternalRow {
case v: MapData => v.copy()
case _ => value
}
+
+ /**
+ * Returns an accessor for an `InternalRow` with given data type. The
returned accessor
+ * actually takes a `SpecializedGetters` input because it can be
generalized to other classes
+ * that implements `SpecializedGetters` (e.g., `ArrayData`) too.
+ */
+ def getAccessor(dataType: DataType): (SpecializedGetters, Int) => Any =
dataType match {
--- End diff --
Perhaps we should move this to the companion object of `SpecializedGetters`?
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