ulysses-you commented on a change in pull request #32816: URL: https://github.com/apache/spark/pull/32816#discussion_r706592608
########## File path: sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/simpleCosting.scala ########## @@ -35,15 +36,48 @@ case class SimpleCost(value: Long) extends Cost { } /** - * A simple implementation of [[CostEvaluator]], which counts the number of - * [[ShuffleExchangeLike]] nodes in the plan. + * A skew join aware implementation of [[Cost]], which consider shuffle number and skew join number Review comment: yea, add more comment to show how we pick the cost with skew join and shuffle. -- 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. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org