Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/18732#discussion_r142836245
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/object.scala
---
@@ -519,3 +519,18 @@ case class CoGroup(
outputObjAttr: Attribute,
left: LogicalPlan,
right: LogicalPlan) extends BinaryNode with ObjectProducer
+
+case class FlatMapGroupsInPandas(
+ groupingAttributes: Seq[Attribute],
+ functionExpr: Expression,
+ output: Seq[Attribute],
+ child: LogicalPlan) extends UnaryNode {
+ /**
+ * This is needed because output attributes is considered `reference`
when
--- End diff --
nit: `reference` -> `references`.
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