diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/v2Commands.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/v2Commands.scala
index 48d48f0cd9e20..6339a18796fa0 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/v2Commands.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/v2Commands.scala
@@ -64,10 +64,11 @@ trait V2WriteCommand extends UnaryCommand with KeepAnalyzedQuery with CTEInChild
     table.skipSchemaResolution || (query.output.size == table.output.size &&
       query.output.zip(table.output).forall {
         case (inAttr, outAttr) =>
+          val inType = CharVarcharUtils.getRawType(inAttr.metadata).getOrElse(inAttr.dataType)
           val outType = CharVarcharUtils.getRawType(outAttr.metadata).getOrElse(outAttr.dataType)
           // names and types must match, nullability must be compatible
           inAttr.name == outAttr.name &&
-            DataType.equalsIgnoreCompatibleNullability(inAttr.dataType, outType) &&
+            DataType.equalsIgnoreCompatibleNullability(inType, outType) &&
             (outAttr.nullable || !inAttr.nullable)
       })
   }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2SQLSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2SQLSuite.scala
index 5b2472f774278..0382efaf9d7e5 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2SQLSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2SQLSuite.scala
@@ -1739,6 +1739,16 @@ class DataSourceV2SQLSuiteV1Filter
     }
   }
 
+  test("SPARK-48709: varchar resolution mismatch for DataSourceV2 CTAS") {
+    withSQLConf(
+      SQLConf.STORE_ASSIGNMENT_POLICY.key -> SQLConf.StoreAssignmentPolicy.LEGACY.toString) {
+      withTable("testcat.ns.t1", "testcat.ns.t2") {
+        sql("CREATE TABLE testcat.ns.t1 (d1 string, d2 varchar(200)) USING parquet")
+        sql("CREATE TABLE testcat.ns.t2 USING foo as select * from testcat.ns.t1")
+      }
+    }
+  }
+
   test("ShowCurrentNamespace: basic tests") {
     def testShowCurrentNamespace(expectedCatalogName: String, expectedNamespace: String): Unit = {
       val schema = new StructType()