diff --git a/Src/Asp.Net/SqlServerTest/Demo/Demo1_Queryable.cs b/Src/Asp.Net/SqlServerTest/Demo/Demo1_Queryable.cs
index 7bd0105c9..25530b02b 100644
--- a/Src/Asp.Net/SqlServerTest/Demo/Demo1_Queryable.cs
+++ b/Src/Asp.Net/SqlServerTest/Demo/Demo1_Queryable.cs
@@ -45,8 +45,11 @@ namespace OrmTest
             var getDicionary = db.Queryable<Order>().ToDictionary(it => it.Id, it => it.Name);
             var getDicionaryList = db.Queryable<Order>().ToDictionaryList();
             var getTest = db.Queryable<Order>().Where(it =>string.IsNullOrWhiteSpace( it.Name)).ToList();
-
-
+            var test01 = db.Queryable<Order>().PartitionBy(it => it.Id).ToList();
+            var q1 = db.Queryable<Order>().Take(1);
+            var q2 = db.Queryable<Order>().Take(2);
+            var test02 = db.Union(q1, q2).ToList();
+            var test03 = db.Queryable<Order>().Take(1).ToList();
             Console.WriteLine("#### Examples End ####");
         }
 
diff --git a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
index cb429cb2f..3e9480408 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -622,6 +622,7 @@ namespace SqlSugar
             if (QueryBuilder.Take == null)
                 QueryBuilder.Take = 1;
             _PartitionBy(expression);
+            QueryBuilder.DisableTop = true;
             return this;
         }
         public virtual ISugarQueryable<T> PartitionBy(string groupFileds)
diff --git a/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs b/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
index f97f197d0..9447c15ca 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
@@ -40,6 +40,7 @@ namespace SqlSugar
         public int ExternalPageIndex { get; set; }
         public int ExternalPageSize { get; set; }
         public int? Take { get; set; }
+        public bool DisableTop { get; set; }
         public string OrderByValue { get; set; }
         public object SelectValue { get; set; }
         public string SelectCacheKey { get; set; }
diff --git a/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
index 57af42017..806221bbd 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
@@ -544,6 +544,7 @@ namespace SqlSugar
             List<KeyValuePair<string, List<SugarParameter>>> allItems = new List<KeyValuePair<string, List<SugarParameter>>>();
             foreach (var item in queryables)
             {
+                item.QueryBuilder.DisableTop = true;
                 var sqlObj = item.ToSql();
                 string sql = sqlObj.Key;
                 UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i, "Union");
diff --git a/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs b/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs
index 141d374bb..ca7da927c 100644
--- a/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs
@@ -28,7 +28,7 @@ namespace SqlSugar
             {
                 this.OrderByValue = this.PartitionByValue + this.OrderByValue;
             }
-            var isFirst = (Skip == 0 || Skip == null) && Take == 1;
+            var isFirst = (Skip == 0 || Skip == null) && Take == 1&&DisableTop==false;
             var isRowNumber = (Skip != null || Take != null) && !isFirst;
             var rowNumberString = string.Format(",ROW_NUMBER() OVER({0}) AS RowIndex ", GetOrderByString);
             string groupByValue = GetGroupByString + HavingInfos;