diff --git a/Src/Asp.Net/PgSqlTest/Demo/DemoE_CodeFirst.cs b/Src/Asp.Net/PgSqlTest/Demo/DemoE_CodeFirst.cs
index f3f695299..1b2f687fa 100644
--- a/Src/Asp.Net/PgSqlTest/Demo/DemoE_CodeFirst.cs
+++ b/Src/Asp.Net/PgSqlTest/Demo/DemoE_CodeFirst.cs
@@ -70,9 +70,16 @@ namespace OrmTest
             }).Where(it => it.Id != null).ExecuteCommand();
             db.CodeFirst.InitTables<CodeFirstChartest>();
             db.Queryable<CodeFirstChartest>().Where(it => it.Test == 's').ToList();
+            db.CodeFirst.InitTables<CodeFloatddfa1a1>();
+            db.Insertable(new CodeFloatddfa1a1() { xx = (float)11.1 }).ExecuteCommand();
+            var list7 = db.Queryable<CodeFloatddfa1a1>().ToList();
             Console.WriteLine("#### CodeFirst end ####");
         }
     }
+    public class CodeFloatddfa1a1
+    {
+        public float xx { get; set; }
+    }
     public class CodeFirstChartest 
     {
         [SugarColumn(ColumnDataType ="varchar(1)")]