diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
index ae5da01e2..368a28e5b 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
@@ -70,18 +70,17 @@ namespace SqlSugar
             RestoreMapping();
             return new KeyValuePair<string, List<SugarParameter>>(sql, InsertBuilder.Parameters);
         }
-
+        public async Task<List<Type>> ExecuteReturnPkListAsync<Type>() 
+        {
+            return await Task.Run(() => ExecuteReturnPkList<Type>());
+        }
         public virtual List<Type> ExecuteReturnPkList<Type>() 
         {
            var pkInfo= this.EntityInfo.Columns.FirstOrDefault(it => it.IsPrimarykey == true);
             Check.ExceptionEasy(pkInfo==null,"ExecuteReturnPkList need primary key", "ExecuteReturnPkList需要主键");
             Check.ExceptionEasy(this.EntityInfo.Columns.Count(it => it.IsPrimarykey == true)>1, "ExecuteReturnPkList ，Only support technology single primary key", "ExecuteReturnPkList只支技单主键");
             var isIdEntity = pkInfo.IsIdentity|| (pkInfo.OracleSequenceName.HasValue()&&this.Context.CurrentConnectionConfig.DbType==DbType.Oracle);
-            if (pkInfo.UnderType == UtilConstants.LongType)
-            {
-                return InsertPkListLong<Type>();
-            }
-            else if (isIdEntity&&this.InsertObjs.Length==1)
+            if (isIdEntity&&this.InsertObjs.Length==1)
             {
                 return InsertPkListIdentityCount1<Type>(pkInfo);
             }
@@ -93,6 +92,10 @@ namespace SqlSugar
             {
                 return InsertPkListWithFunc<Type>(pkInfo);
             }
+            else if (pkInfo.UnderType == UtilConstants.LongType)
+            {
+                return InsertPkListLong<Type>();
+            }
             else
             {
                 return InsertPkListGuid<Type>(pkInfo);
diff --git a/Src/Asp.NetCore2/SqlSugar/Interface/Insertable.cs b/Src/Asp.NetCore2/SqlSugar/Interface/Insertable.cs
index c0d3f9d26..9cc7ca679 100644
--- a/Src/Asp.NetCore2/SqlSugar/Interface/Insertable.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Interface/Insertable.cs
@@ -13,6 +13,7 @@ namespace SqlSugar
         int ExecuteCommand();
         Task<int> ExecuteCommandAsync();
         List<Type> ExecuteReturnPkList<Type>();
+        Task<List<Type>> ExecuteReturnPkListAsync<Type>();
         long ExecuteReturnSnowflakeId();
         List<long> ExecuteReturnSnowflakeIdList();
         Task<long> ExecuteReturnSnowflakeIdAsync();
diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/SqlServer/DbMaintenance/SqlServerDbMaintenance.cs b/Src/Asp.NetCore2/SqlSugar/Realization/SqlServer/DbMaintenance/SqlServerDbMaintenance.cs
index e851fd2c9..940a51134 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/SqlServer/DbMaintenance/SqlServerDbMaintenance.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/SqlServer/DbMaintenance/SqlServerDbMaintenance.cs
@@ -214,7 +214,7 @@ namespace SqlSugar
         {
             get
             {
-                return "EXECUTE sp_addextendedproperty N'MS_Description', '{1}', N'user', N'dbo', N'table', N'{0}', NULL, NULL";
+                return "EXECUTE sp_addextendedproperty N'MS_Description', N'{1}', N'user', N'dbo', N'table', N'{0}', NULL, NULL";
             }
         }