diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs
index fbc94dee..f59bf2e9 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs
@@ -1126,12 +1126,12 @@ WHERE (((cast(a.`Id` as char)) in (SELECT b.`Title`
                     WF_ProcessInstance = p
                 });
 
-            Assert.Equal(@"SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId` ProcessId, a.`NodeId` NodeId, a.`NodeName` NodeName 
+            Assert.Equal(@"SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId`, a.`NodeId`, a.`NodeName` 
 FROM `WF_Task` a 
 WHERE (a.`IsFinished` = 1 AND (a.`AuditorId` = '1' OR a.`AuditorId` = '1cb71584-a6dd-4b26-8c88-ed9fb8cf87a3')) 
 GROUP BY a.`ProcessId`, a.`NodeId`, a.`NodeName`", sqltmp12);
             Assert.Equal(@"SELECT a.`TaskId` as1, a.`TaskType` as2, a.`ProcessId` as3, a.`NodeId` as4, a.`NodeName` as5, b.`Id` as6, b.`TaskType` as7, b.`ProcessId` as8, b.`NodeId` as9, b.`CreateTime` as10, b.`IsFinished` as11, b.`EnabledMark` as12 
-FROM ( SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId` ProcessId, a.`NodeId` NodeId, a.`NodeName` NodeName 
+FROM ( SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId`, a.`NodeId`, a.`NodeName` 
     FROM `WF_Task` a 
     WHERE (a.`IsFinished` = 1 AND (a.`AuditorId` = '1' OR a.`AuditorId` = '1cb71584-a6dd-4b26-8c88-ed9fb8cf87a3')) 
     GROUP BY a.`ProcessId`, a.`NodeId`, a.`NodeName` ) a 
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/Curd/MySqlSelectTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/Curd/MySqlSelectTest.cs
index 871d4408..399e3fca 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/Curd/MySqlSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/Curd/MySqlSelectTest.cs
@@ -1137,12 +1137,12 @@ WHERE (((cast(a.`Id` as char)) in (SELECT b.`Title`
                     WF_ProcessInstance = p
                 });
 
-            Assert.Equal(@"SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId` ProcessId, a.`NodeId` NodeId, a.`NodeName` NodeName 
+            Assert.Equal(@"SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId`, a.`NodeId`, a.`NodeName` 
 FROM `WF_Task` a 
 WHERE (a.`IsFinished` = 1 AND (a.`AuditorId` = '1' OR a.`AuditorId` = '1cb71584-a6dd-4b26-8c88-ed9fb8cf87a3')) 
 GROUP BY a.`ProcessId`, a.`NodeId`, a.`NodeName`", sqltmp12);
             Assert.Equal(@"SELECT a.`TaskId` as1, a.`TaskType` as2, a.`ProcessId` as3, a.`NodeId` as4, a.`NodeName` as5, b.`Id` as6, b.`TaskType` as7, b.`ProcessId` as8, b.`NodeId` as9, b.`CreateTime` as10, b.`IsFinished` as11, b.`EnabledMark` as12 
-FROM ( SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId` ProcessId, a.`NodeId` NodeId, a.`NodeName` NodeName 
+FROM ( SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId`, a.`NodeId`, a.`NodeName` 
     FROM `WF_Task` a 
     WHERE (a.`IsFinished` = 1 AND (a.`AuditorId` = '1' OR a.`AuditorId` = '1cb71584-a6dd-4b26-8c88-ed9fb8cf87a3')) 
     GROUP BY a.`ProcessId`, a.`NodeId`, a.`NodeName` ) a 
diff --git a/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs
index 3eb3d8c3..292da596 100644
--- a/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs
@@ -1168,12 +1168,12 @@ WHERE (((cast(a.`Id` as char)) in (SELECT b.`Title`
                 });
 
             Assert.Equal(@"SELECT a.`Id` as1, a.`Clicks` as2 
-FROM (SELECT  * from (SELECT a.`Id` Id, a.`Clicks` Clicks 
+FROM (SELECT  * from (SELECT a.`Id`, a.`Clicks` 
     FROM `tb_topic_1` a) ftb
  
     UNION ALL
  
-    SELECT  * from (SELECT a.`Id` Id, a.`Clicks` Clicks 
+    SELECT  * from (SELECT a.`Id`, a.`Clicks` 
     FROM `tb_topic_2` a) ftb) a 
 limit 0,20", select
                 .AsTable((type, old) => type == typeof(Topic) ? $"({sqlsss})" : null)
@@ -1206,12 +1206,12 @@ limit 0,20", select
                     WF_ProcessInstance = p
                 });
 
-            Assert.Equal(@"SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId` ProcessId, a.`NodeId` NodeId, a.`NodeName` NodeName 
+            Assert.Equal(@"SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId`, a.`NodeId`, a.`NodeName` 
 FROM `WF_Task` a 
 WHERE (a.`IsFinished` = 1 AND (a.`AuditorId` = '1' OR a.`AuditorId` = '1cb71584-a6dd-4b26-8c88-ed9fb8cf87a3')) 
 GROUP BY a.`ProcessId`, a.`NodeId`, a.`NodeName`", sqltmp12);
             Assert.Equal(@"SELECT a.`TaskId` as1, a.`TaskType` as2, a.`ProcessId` as3, a.`NodeId` as4, a.`NodeName` as5, b.`Id` as6, b.`TaskType` as7, b.`ProcessId` as8, b.`NodeId` as9, b.`CreateTime` as10, b.`IsFinished` as11, b.`EnabledMark` as12 
-FROM ( SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId` ProcessId, a.`NodeId` NodeId, a.`NodeName` NodeName 
+FROM ( SELECT max(a.`Id`) TaskId, max(a.`Type`) TaskType, a.`ProcessId`, a.`NodeId`, a.`NodeName` 
     FROM `WF_Task` a 
     WHERE (a.`IsFinished` = 1 AND (a.`AuditorId` = '1' OR a.`AuditorId` = '1cb71584-a6dd-4b26-8c88-ed9fb8cf87a3')) 
     GROUP BY a.`ProcessId`, a.`NodeId`, a.`NodeName` ) a 
diff --git a/FreeSql.Tests/FreeSql.Tests/MySql/MySqlDbFirstTest.cs b/FreeSql.Tests/FreeSql.Tests/MySql/MySqlDbFirstTest.cs
index b6e9c337..51afef22 100644
--- a/FreeSql.Tests/FreeSql.Tests/MySql/MySqlDbFirstTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/MySql/MySqlDbFirstTest.cs
@@ -32,6 +32,9 @@ namespace FreeSql.Tests.MySql
             Assert.Equal(t1.Columns.Count, t2.Columns.Count);
             var t3 = fsql.DbFirst.GetTableByName("notexists_tb");
             Assert.Null(t3);
+
+            var t11 = fsql.DbFirst.GetTableByName("blog");
+
         }
 
         [Fact]
diff --git a/FreeSql.Tests/FreeSql.Tests/Oracle/Curd/OracleSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/Oracle/Curd/OracleSelectTest.cs
index 14ff9c76..4aae89fc 100644
--- a/FreeSql.Tests/FreeSql.Tests/Oracle/Curd/OracleSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/Oracle/Curd/OracleSelectTest.cs
@@ -909,10 +909,10 @@ FROM ""TB_TOPIC22"" a", subquery);
             Assert.Equal(@"SELECT a.""ID"" as1, a.""CLICKS"" as2, a.""TYPEGUID"" as3, a.""TITLE"" as4, a.""CREATETIME"" as5, (SELECT avg(b.""ID"") 
     FROM ""TB_TOPIC22"" b) as6 
 FROM ""TB_TOPIC22"" a", subquery);
-            var subqueryList = select.Limit(100).ToList(a => new
+            var subqueryList = select.Limit(10).ToList(a => new
             {
                 all = a,
-                count = select.As("b").Avg(b => b.Id)
+                count = select.As("b").Limit(10).Avg(b => b.Id)
             });
         }
         [Fact]