diff --git a/samples/Apache.IoTDB.Samples/SessionPoolTest.cs b/samples/Apache.IoTDB.Samples/SessionPoolTest.cs
index 54e3898..cf8322e 100644
--- a/samples/Apache.IoTDB.Samples/SessionPoolTest.cs
+++ b/samples/Apache.IoTDB.Samples/SessionPoolTest.cs
@@ -19,6 +19,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using Apache.IoTDB.Data;
@@ -468,10 +469,19 @@ await session_pool.ExecuteNonQueryStatementAsync(
             while (res.HasNext()) Console.WriteLine(res.Next());
 
             await res.Close();
+            Console.WriteLine("SELECT sql Passed");
+            res = await session_pool.ExecuteQueryStatementAsync(
+                "select status, temperature, hardware from " + string.Format("{0}.{1}", test_group_name, test_device) + " where time<10");
+            res.ShowTableNames();
+            var columnNames = new List<string> { "root.TEST_CSHARP_CLIENT_GROUP_97209.TEST_CSHARP_CLIENT_DEVICE.status", "root.TEST_CSHARP_CLIENT_GROUP_97209.TEST_CSHARP_CLIENT_DEVICE.temperature", "root.TEST_CSHARP_CLIENT_GROUP_97209.TEST_CSHARP_CLIENT_DEVICE.hardware" };
+            System.Diagnostics.Debug.Assert(columnNames.SequenceEqual(res.ColumnNames));
+            while (res.HasNext()) Console.WriteLine(res.Next());
+
+            await res.Close();
+            Console.WriteLine("SELECT sql Passed");
             status = await session_pool.DeleteStorageGroupAsync(test_group_name);
             System.Diagnostics.Debug.Assert(status == 0);
             await session_pool.Close();
-            Console.WriteLine("SELECT sql Passed");
         }
         public async Task TestRawDataQuery()
         {
@@ -569,4 +579,4 @@ public async Task TestLastDataQuery()
             Console.WriteLine("LastDataQuery Passed");
         }
     }
-}
\ No newline at end of file
+}