AngersZhuuuu commented on a change in pull request #26437: [SPARK-29800][SQL]
Plan non-correlated Exists 's subquery in PlanSubqueries
URL: https://github.com/apache/spark/pull/26437#discussion_r362385743
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/subquery.scala
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@@ -194,6 +194,11 @@ case class PlanSubqueries(sparkSession: SparkSession)
extends Rule[SparkPlan] {
}
val executedPlan = new QueryExecution(sparkSession, query).executedPlan
InSubqueryExec(expr, SubqueryExec(s"subquery#${exprId.id}",
executedPlan), exprId)
+ case exists: expressions.Exists =>
+ val executedPlan = new QueryExecution(sparkSession,
exists.plan).executedPlan
Review comment:
> And I think we should create a new rule in the `Finish Analysis` batch to
do the conversion, so that it can ho through the optimizer.
ok, I will try it after today's work.
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