cloud-fan commented on issue #26437: [SPARK-29800][SQL] Plan Exists 's subquery in PlanSubqueries URL: https://github.com/apache/spark/pull/26437#issuecomment-552336951 > get result with only executing one partition. do you mean something like `RDD.take`? e.g. we can execute the first partition, if it's non-empty, return true, otherwise, execute more partitions
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