AngersZhuuuu commented on a change in pull request #26437: [SPARK-29800][SQL]
Plan Exists 's subquery in PlanSubqueries
URL: https://github.com/apache/spark/pull/26437#discussion_r344200356
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/subquery.scala
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@@ -194,6 +257,19 @@ 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 expressions.Exists(sub, children, exprId) =>
Review comment:
> We can think more about how to solve this problem in your original PR.
See current change, don't collect data, only judge has result, may don't
have oom problem
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