JkSelf commented on a change in pull request #26289:
[SPARK-28560][SQL][followup] support the build side to local shuffle reader as
far as possible in BroadcastHashJoin
URL: https://github.com/apache/spark/pull/26289#discussion_r340462417
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/OptimizeLocalShuffleReader.scala
##########
@@ -56,16 +76,25 @@ case class OptimizeLocalShuffleReader(conf: SQLConf)
extends Rule[SparkPlan] {
case e: ShuffleExchangeExec => e
}.length
}
-
+ // Check whether additional shuffle introduced. If introduced, revert the
local reader.
Review comment:
We can implement using revert all the local reader currently and re-optimize
later when we find a better way.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
