Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/11190#discussion_r53547431
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/basicOperators.scala ---
@@ -343,3 +343,18 @@ case class OutputFaker(output: Seq[Attribute], child:
SparkPlan) extends SparkPl
protected override def doExecute(): RDD[InternalRow] = child.execute()
}
+
+/**
+ * A plan as subquery.
+ *
+ * This is used to generate tree string for SparkScalarSubquery.
+ */
+case class Subquery(name: String, child: SparkPlan) extends UnaryNode {
+ override def output: Seq[Attribute] = child.output
+ override def outputPartitioning: Partitioning = child.outputPartitioning
+ override def outputOrdering: Seq[SortOrder] = child.outputOrdering
+
+ protected override def doExecute(): RDD[InternalRow] = {
+ child.execute()
--- End diff --
But by then we can just implement it? I think once execute is called, this
violates your design that this is only used in a subquery, and we might have
subtle other problems ..
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
