Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/18954#discussion_r133874032
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/EnsureRequirements.scala
---
@@ -50,7 +50,9 @@ case class EnsureRequirements(conf: SQLConf) extends
Rule[SparkPlan] {
numPartitions: Int): Partitioning = {
requiredDistribution match {
case AllTuples => SinglePartition
- case ClusteredDistribution(clustering) =>
HashPartitioning(clustering, numPartitions)
+ case ClusteredDistribution(clustering, numClusters,
hashingFunctionClass) =>
+ HashPartitioning(clustering, numClusters.getOrElse(numPartitions),
--- End diff --
This is going to create a partitioning that satisfies that distribution.
According to modified `HashPartitioning`, if `numPartitions` isn't equal to
`numClusters`, `satisfies` returns `false`. It seems a conflict if we ask to
create a partitioning of `numPartitions` with a `ClusteredDistribution` of
`numClusters`?
---
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]
