diff --git a/XCode/DataAccessLayer/MetaData/IMetaData.cs b/XCode/DataAccessLayer/MetaData/IMetaData.cs
index f51b658c5..deed5ec47 100644
--- a/XCode/DataAccessLayer/MetaData/IMetaData.cs
+++ b/XCode/DataAccessLayer/MetaData/IMetaData.cs
@@ -1,50 +1,47 @@
-using System;
-using System.Collections.Generic;
-using NewLife;
+using NewLife;
 
-namespace XCode.DataAccessLayer
+namespace XCode.DataAccessLayer;
+
+/// <summary>数据库元数据接口</summary>
+public interface IMetaData : IDisposable2
 {
-    /// <summary>数据库元数据接口</summary>
-    public interface IMetaData : IDisposable2
-    {
-        #region 属性
-        /// <summary>数据库</summary>
-        IDatabase Database { get; }
-
-        /// <summary>所有元数据集合</summary>
-        ICollection<String> MetaDataCollections { get; }
-
-        /// <summary>保留关键字</summary>
-        ICollection<String> ReservedWords { get; }
-        #endregion
-
-        #region 构架
-        /// <summary>取得表模型，正向工程</summary>
-        /// <returns></returns>
-        IList<IDataTable> GetTables();
-
-        /// <summary>
-        /// 取得所有表名
-        /// </summary>
-        /// <returns></returns>
-        IList<String> GetTableNames();
-
-        /// <summary>设置表模型，检查数据表是否匹配表模型，反向工程</summary>
-        /// <param name="setting">设置</param>
-        /// <param name="tables"></param>
-        void SetTables(Migration setting, params IDataTable[] tables);
-
-        /// <summary>获取数据定义语句</summary>
-        /// <param name="schema">数据定义模式</param>
-        /// <param name="values">其它信息</param>
-        /// <returns>数据定义语句</returns>
-        String? GetSchemaSQL(DDLSchema schema, params Object?[] values);
-
-        /// <summary>设置数据定义模式</summary>
-        /// <param name="schema">数据定义模式</param>
-        /// <param name="values">其它信息</param>
-        /// <returns></returns>
-        Object? SetSchema(DDLSchema schema, params Object?[] values);
-        #endregion
-    }
+    #region 属性
+    /// <summary>数据库</summary>
+    IDatabase Database { get; }
+
+    /// <summary>所有元数据集合</summary>
+    ICollection<String> MetaDataCollections { get; }
+
+    /// <summary>保留关键字</summary>
+    ICollection<String> ReservedWords { get; }
+    #endregion
+
+    #region 构架
+    /// <summary>取得表模型，正向工程</summary>
+    /// <returns></returns>
+    IList<IDataTable> GetTables();
+
+    /// <summary>
+    /// 取得所有表名
+    /// </summary>
+    /// <returns></returns>
+    IList<String> GetTableNames();
+
+    /// <summary>设置表模型，检查数据表是否匹配表模型，反向工程</summary>
+    /// <param name="setting">设置</param>
+    /// <param name="tables"></param>
+    void SetTables(Migration setting, params IDataTable[] tables);
+
+    /// <summary>获取数据定义语句</summary>
+    /// <param name="schema">数据定义模式</param>
+    /// <param name="values">其它信息</param>
+    /// <returns>数据定义语句</returns>
+    String? GetSchemaSQL(DDLSchema schema, params Object?[] values);
+
+    /// <summary>设置数据定义模式</summary>
+    /// <param name="schema">数据定义模式</param>
+    /// <param name="values">其它信息</param>
+    /// <returns></returns>
+    Object? SetSchema(DDLSchema schema, params Object?[] values);
+    #endregion
 }
\ No newline at end of file
diff --git a/XCode/Entity/EntityFactory.cs b/XCode/Entity/EntityFactory.cs
index a7f42ac6b..51711823f 100644
--- a/XCode/Entity/EntityFactory.cs
+++ b/XCode/Entity/EntityFactory.cs
@@ -251,19 +251,23 @@ private static void Init(String connName, IList<Type>? types, Boolean throwOnErr
             // 反向工程检查
             if (dal.Db.Migration > Migration.Off)
             {
-                //var tables = facts.Select(e => e.Table.DataTable).ToArray();
                 var tables = new List<IDataTable>();
                 foreach (var item in facts)
                 {
+                    // 带有分表策略的实体类不参与反向工程
+                    if (item.ShardPolicy != null) continue;
+                    if (item.Table.DataTable.Columns.Any(e => e.DataScale.StartsWithIgnoreCase("shard:", "timeShard:"))) continue;
+
                     // 克隆一份，防止修改
                     var table = item.Table.DataTable;
                     table = (table.Clone() as IDataTable)!;
 
-                    if (/*table != null &&*/ table.TableName != item.TableName)
+                    if (table.TableName != item.TableName)
                     {
                         // 表名去掉前缀
                         var name = item.TableName;
-                        if (name.Contains(".")) name = name.Substring(".");
+                        var p = name.IndexOf('.');
+                        if (p > 0) name = name.Substring(p + 1);
 
                         table.TableName = name;
                     }
@@ -276,10 +280,6 @@ private static void Init(String connName, IList<Type>? types, Boolean throwOnErr
             // 实体类初始化数据
             foreach (var item in facts)
             {
-                //if (item.Default is EntityBase entity)
-                //{
-                //    entity.InitData();
-                //}
                 item.Session.InitData();
 
                 if (span != null) span.Value++;