diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkOptimizer.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkOptimizer.scala
index 70a35ea911538..aa2d1c2764761 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkOptimizer.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkOptimizer.scala
@@ -26,6 +26,7 @@ import org.apache.spark.sql.connector.catalog.CatalogManager
 import org.apache.spark.sql.execution.datasources.{PruneFileSourcePartitions, SchemaPruning, V1Writes}
 import org.apache.spark.sql.execution.datasources.v2.{GroupBasedRowLevelOperationScanPlanning, OptimizeMetadataOnlyDeleteFromTable, V2ScanPartitioningAndOrdering, V2ScanRelationPushDown, V2Writes}
 import org.apache.spark.sql.execution.dynamicpruning.{CleanupDynamicPruningFilters, PartitionPruning, RowLevelOperationRuntimeGroupFiltering}
+import org.apache.spark.sql.execution.merge.MergeScalarSubqueries
 import org.apache.spark.sql.execution.python.{ExtractGroupingPythonUDFFromAggregate, ExtractPythonUDFFromAggregate, ExtractPythonUDFs, ExtractPythonUDTFs}
 
 class SparkOptimizer(
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/MergeScalarSubqueries.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/merge/MergeScalarSubqueries.scala
similarity index 99%
rename from sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/MergeScalarSubqueries.scala
rename to sql/core/src/main/scala/org/apache/spark/sql/execution/merge/MergeScalarSubqueries.scala
index 6184160829ba6..132724ef908d0 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/MergeScalarSubqueries.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/merge/MergeScalarSubqueries.scala
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.spark.sql.catalyst.optimizer
+package org.apache.spark.sql.execution.merge
 
 import scala.collection.mutable
 import scala.collection.mutable.ArrayBuffer
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/InjectRuntimeFilterSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/InjectRuntimeFilterSuite.scala
index fedfd9ff587ab..e11cc89c33e5f 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/InjectRuntimeFilterSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/InjectRuntimeFilterSuite.scala
@@ -19,11 +19,12 @@ package org.apache.spark.sql
 
 import org.apache.spark.sql.catalyst.expressions.{Alias, BloomFilterMightContain, Literal}
 import org.apache.spark.sql.catalyst.expressions.aggregate.{AggregateExpression, BloomFilterAggregate}
-import org.apache.spark.sql.catalyst.optimizer.{ColumnPruning, MergeScalarSubqueries}
+import org.apache.spark.sql.catalyst.optimizer.ColumnPruning
 import org.apache.spark.sql.catalyst.plans.LeftSemi
 import org.apache.spark.sql.catalyst.plans.logical.{Aggregate, Filter, Join, LogicalPlan}
 import org.apache.spark.sql.execution.{ReusedSubqueryExec, SubqueryExec}
 import org.apache.spark.sql.execution.adaptive.{AdaptiveSparkPlanHelper, AQEPropagateEmptyRelation}
+import org.apache.spark.sql.execution.merge.MergeScalarSubqueries
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.test.{SharedSparkSession, SQLTestUtils}
 import org.apache.spark.sql.types.{IntegerType, StructType}
diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/MergeScalarSubqueriesSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/merge/MergeScalarSubqueriesSuite.scala
similarity index 99%
rename from sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/MergeScalarSubqueriesSuite.scala
rename to sql/core/src/test/scala/org/apache/spark/sql/execution/merge/MergeScalarSubqueriesSuite.scala
index 8af0e02855b12..b1308894f4266 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/MergeScalarSubqueriesSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/merge/MergeScalarSubqueriesSuite.scala
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.spark.sql.catalyst.optimizer
+package org.apache.spark.sql.execution.merge
 
 import org.apache.spark.sql.catalyst.dsl.expressions._
 import org.apache.spark.sql.catalyst.dsl.plans._