dongjoon-hyun commented on code in PR #41094:
URL: https://github.com/apache/spark/pull/41094#discussion_r1187975843
##########
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/BinaryComparisonSimplificationSuite.scala:
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@@ -228,4 +228,31 @@ class BinaryComparisonSimplificationSuite extends PlanTest
{
checkCondition(nullableRelation, $"a" <=> nullLit, $"a".isNull)
}
+
+ test("IN subquery nullability") {
Review Comment:
Could you add a test prefix please, @jchen5 ?
```scala
- test("IN subquery nullability") {
+ test("SPARK-43413: IN subquery nullability") {
```
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