Major Description
When AQE is enabled, EXPLAIN FORMATTED doesn't show the plan for subqueries.
spark.conf.set("spark.sql.adaptive.enabled", "true") val df = spark.range(1, 100) df.createTempView("df") spark.sql("SELECT (SELECT min(id) AS v FROM df)").explain("FORMATTED") == Physical Plan == AdaptiveSparkPlan (3) +- Project (2) +- Scan OneRowRelation (1) (1) Scan OneRowRelation Output: [] Arguments: ParallelCollectionRDD[0] at explain at <console>:24, OneRowRelation, UnknownPartitioning(0) (2) Project Output [1]: [Subquery subquery#3, [id=#20] AS scalarsubquery()#5L] Input: [] (3) AdaptiveSparkPlan Output [1]: [scalarsubquery()#5L] Arguments: isFinalPlan=false
