Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/5610#discussion_r28826862
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/basicOperators.scala ---
@@ -65,6 +65,21 @@ case class Filter(condition: Expression, child:
SparkPlan) extends UnaryNode {
* :: DeveloperApi ::
*/
@DeveloperApi
+case class CustomFilter(condition: Expression, child: SparkPlan, out:
Seq[Attribute])
+ extends UnaryNode {
+ override def output: Seq[Attribute] = out
--- End diff --
This is not correct. You are claiming to produce a given output schema,
but really the output of this operator will always be `child.output`.
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