[GitHub] [spark] dongjoon-hyun commented on a change in pull request #25268: [SPARK-28375][SQL] Make pullupCorrelatedPredicate idempotent

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dongjoon-hyun commented on a change in pull request #25268: [SPARK-28375][SQL] Make pullupCorrelatedPredicate idempotent
URL: https://github.com/apache/spark/pull/25268#discussion_r307974744
 
 

 ##########
 File path: sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/PullupCorrelatedPredicatesSuite.scala
 ##########
 @@ -36,17 +36,65 @@ class PullupCorrelatedPredicatesSuite extends PlanTest {
   val testRelation2 = LocalRelation('c.int, 'd.double)
 
   test("PullupCorrelatedPredicates should not produce unresolved plan") {
-    val correlatedSubquery =
+    val subPlan =
       testRelation2
         .where('b < 'd)
         .select('c)
-    val outerQuery =
+    val inSubquery =
       testRelation
-        .where(InSubquery(Seq('a), ListQuery(correlatedSubquery)))
+        .where(InSubquery(Seq('a), ListQuery(subPlan)))
         .select('a).analyze
-    assert(outerQuery.resolved)
+    assert(inSubquery.resolved)
 
-    val optimized = Optimize.execute(outerQuery)
+    val optimized = Optimize.execute(inSubquery)
     assert(optimized.resolved)
   }
+
+  test("SPARK-28375 PullupCorrelatedPredicates in correlated subquery idiompotency check") {
 
 Review comment:
   For me, this is an improvement PR. We don't need use JIRA id.

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