Github user ueshin commented on a diff in the pull request: https://github.com/apache/spark/pull/13147#discussion_r65111434 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/planning/QueryPlanner.scala --- @@ -47,17 +55,34 @@ abstract class QueryPlanner[PhysicalPlan <: TreeNode[PhysicalPlan]] { /** A list of execution strategies that can be used by the planner */ def strategies: Seq[GenericStrategy[PhysicalPlan]] - /** - * Returns a placeholder for a physical plan that executes `plan`. This placeholder will be - * filled in automatically by the QueryPlanner using the other execution strategies that are - * available. - */ - protected def planLater(plan: LogicalPlan): PhysicalPlan = this.plan(plan).next() - def plan(plan: LogicalPlan): Iterator[PhysicalPlan] = { // Obviously a lot to do here still... - val iter = strategies.view.flatMap(_(plan)).toIterator - assert(iter.hasNext, s"No plan for $plan") - iter + val iter = strategies.iterator.flatMap(_(plan)).flatMap { physicalPlan => --- End diff -- @hvanhovell Thank you for your review. I modified the method. Please check it again.
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