Github user tejasapatil commented on a diff in the pull request:
https://github.com/apache/spark/pull/16985#discussion_r106055916
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/Exchange.scala
---
@@ -48,6 +49,10 @@ abstract class Exchange extends UnaryExecNode {
case class ReusedExchangeExec(override val output: Seq[Attribute], child:
Exchange)
extends LeafExecNode {
+ override def outputPartitioning: Partitioning = child.outputPartitioning
--- End diff --
@hvanhovell : continuing our discussion at
https://github.com/apache/spark/pull/16985#discussion_r101905768 :
I found that `ReusedExchangeExec` does not use child's partitioning which
was causing the tests to fail. This version of the PR is with your suggestion +
works in all cases (all unit tests are passing).
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