diff --git a/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/Demos/H_Queue.cs b/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/Demos/H_Queue.cs
new file mode 100644
index 000000000..b9957cc5c
--- /dev/null
+++ b/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/Demos/H_Queue.cs
@@ -0,0 +1,65 @@
+using OrmTest.Demo;
+using OrmTest.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OrmTest.Demo
+{
+    public class Queue : DemoBase
+    {
+        public static void Init()
+        {
+            var db = GetInstance();
+            db.Insertable<Student>(new Student() { Name = "a" }).AddQueue();
+            db.Insertable<Student>(new Student() { Name = "b" }).AddQueue();
+            db.SaveQueues();
+
+            db.Insertable<Student>(new Student() { Name = "a" }).AddQueue();
+            db.Insertable<Student>(new Student() { Name = "b" }).AddQueue();
+            db.Insertable<Student>(new Student() { Name = "c" }).AddQueue();
+            db.Insertable<Student>(new Student() { Name = "d" }).AddQueue();
+            var ar = db.SaveQueuesAsync();
+            ar.Wait();
+
+
+            db.Queryable<Student>().AddQueue();
+            db.Queryable<School>().AddQueue();
+            var result = db.SaveQueues<Student, School>();
+
+            db.Queryable<Student>().AddQueue();
+            db.Queryable<School>().AddQueue();
+            db.AddQueue("select @id", new { id = 1 });
+            var result2 = db.SaveQueues<Student, School, int>();
+
+
+
+            db.AddQueue("select 1");
+            db.AddQueue("select 2");
+            db.AddQueue("select 3");
+            db.AddQueue("select 4");
+            db.AddQueue("select 5");
+            db.AddQueue("select 6");
+            db.AddQueue("select 7");
+
+            var result3 = db.SaveQueues<int, int, int, int, int, int, int>();
+
+
+            db.AddQueue("select 1");
+            var result4 = db.SaveQueues<int >();
+
+
+            db.AddQueue("select 1");
+            db.AddQueue("select 2");
+            var result5 = db.SaveQueues<int,int>();
+
+
+            db.AddQueue("select 1");
+            db.AddQueue("select 2");
+            db.AddQueue("select 3");
+            var result6 = db.SaveQueuesAsync<int, int,int>();
+            result6.Wait();
+        }
+    }
+}
diff --git a/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/Program.cs b/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/Program.cs
index e239e2b6f..d25102e4f 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/Program.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/Program.cs
@@ -38,6 +38,7 @@ namespace MySqlTest
             OrmTest.Demo.Filter.Init();
             OrmTest.Demo.ComplexModel.Init();
             OrmTest.Demo.CodeFirst.Init();
+            OrmTest.Demo.Queue.Init();
         }
     }
 }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/PgSqlTest/Demos/1_Query.cs b/Src/Asp.NetCore2/SqlSeverTest/PgSqlTest/Demos/1_Query.cs
index d829a1d2a..d6ce73026 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/PgSqlTest/Demos/1_Query.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/PgSqlTest/Demos/1_Query.cs
@@ -260,6 +260,7 @@ namespace OrmTest.Demo
             var db = GetInstance();
             var getAll22 = db.Queryable<Student>().ToDataTable();
             var getAll220 = db.Ado.GetDataSetAll("select 1");
+            var getAll22222 = db.Queryable<Student>().Where(it => it.Id == 1).ToSql();
             var dbTime = db.GetDate();
             var getAll = db.Queryable<Student>().Select<object>("*").ToList();
             var getAll2 = db.Queryable<Student>().ToList();
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest/Demos/1_Query.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest/Demos/1_Query.cs
index b26f0b87d..2f944d914 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest/Demos/1_Query.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest/Demos/1_Query.cs
@@ -327,6 +327,7 @@ namespace OrmTest.Demo
             var getAll22 = db.Queryable<Student>().ToDataTable();
             var getAll220 = db.Ado.GetDataSetAll("select 1");
             var getAll222 = db.Queryable<Student>().ToJson();
+            var getAll22222 = db.Queryable<Student>().Where(it=>it.Id==1).ToSql();
             var getAll2222 = db.Queryable<Student>().OrderBy(it=>it.Name.Length).ToJson();
             var getAll3 = db.Queryable<Student>().OrderBy(it => new { it.Id, it.Name }).GroupBy(it => new { it.Id, it.Name }).Select<object>("id").ToList();
             var getRandomList = db.Queryable<Student>().OrderBy(it => SqlFunc.GetRandom()).ToList();