Update sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expr…

…essions/Expression.scala Co-authored-by: Pat Sukprasert <pat.sukprasert@databricks.com>
apache · Oct 17, 2024 · fbea11f · fbea11f
1 parent be4bdb1
commit fbea11f
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala
@@ -1354,8 +1354,7 @@ trait CommutativeExpression extends Expression {
     // [SPARK-49977]: Use iterative approach to avoid creating many temporary List objects
     // for deep expression trees through recursion.
     while (stack.nonEmpty) {
-      val current = stack.pop()
-      current match {
+      stack.pop() match {
         case c: CommutativeExpression if f.isDefinedAt(c) =>
           stack.pushAll(f(c))
         case other =>