viirya commented on a change in pull request #29475:
URL: https://github.com/apache/spark/pull/29475#discussion_r473660595



##########
File path: sql/core/src/main/scala/org/apache/spark/sql/execution/subquery.scala
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@@ -131,14 +131,15 @@ case class InSubqueryExec(
 
   def updateResult(): Unit = {
     val rows = plan.executeCollect()
-    result = child.dataType match {
-      case _: StructType => rows.toArray
-      case _ => rows.map(_.get(0, child.dataType))
-    }
+    // The child is always partition column. So it must be AtomicType.

Review comment:
       Is this true? Seems `PlanSubqueries` will possibly pass a struct into?
   
   
https://github.com/apache/spark/blob/68034a805607ced50dbedca73dfc7eaf0102dde8/sql/core/src/main/scala/org/apache/spark/sql/execution/subquery.scala#L186-L196




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