diff --git a/FreeSql/Extensions/FreeSqlGlobalExpressionCallExtensions.cs b/FreeSql/Extensions/FreeSqlGlobalExpressionCallExtensions.cs
index a7ac772ed..293fbf64a 100644
--- a/FreeSql/Extensions/FreeSqlGlobalExpressionCallExtensions.cs
+++ b/FreeSql/Extensions/FreeSqlGlobalExpressionCallExtensions.cs
@@ -222,17 +222,17 @@ namespace FreeSql
         /// rank() over(order by ...)
         /// </summary>
         /// <returns></returns>
-        public static ISqlOver<long> Rank() => Over<long>("rank()");
+        public static ISqlOver<int> Rank() => Over<int>("rank()");
 		/// <summary>
 		/// dense_rank() over(order by ...)
 		/// </summary>
 		/// <returns></returns>
-		public static ISqlOver<long> DenseRank() => Over<long>("dense_rank()");
+		public static ISqlOver<int> DenseRank() => Over<int>("dense_rank()");
 		/// <summary>
 		/// count() over(order by ...)
 		/// </summary>
 		/// <returns></returns>
-		public static ISqlOver<long> Count(object column) => Over<long>($"count({expContext.Value.ParsedContent["column"]})");
+		public static ISqlOver<int> Count(object column) => Over<int>($"count({expContext.Value.ParsedContent["column"]})");
 		/// <summary>
 		/// sum(..) over(order by ...)
 		/// </summary>
@@ -262,7 +262,7 @@ namespace FreeSql
 		/// SqlServer row_number() over(order by ...)
 		/// </summary>
 		/// <returns></returns>
-		public static ISqlOver<long> RowNumber() => Over<long>("row_number()");
+		public static ISqlOver<int> RowNumber() => Over<int>("row_number()");
 		#endregion
 
 		/// <summary>
@@ -284,7 +284,7 @@ namespace FreeSql
 		/// <typeparam name="T"></typeparam>
 		/// <param name="column"></param>
 		/// <returns></returns>
-		public static long DistinctCount<T>(T column)
+		public static int DistinctCount<T>(T column)
 		{
 			expContext.Value.Result = $"count(distinct {expContext.Value.ParsedContent["column"]})";
 			return 0;
diff --git a/FreeSql/FreeSql.xml b/FreeSql/FreeSql.xml
index 8612f2a7f..3a9fdc72b 100644
--- a/FreeSql/FreeSql.xml
+++ b/FreeSql/FreeSql.xml
@@ -583,6 +583,16 @@
             最大长度
             </summary>
         </member>
+        <member name="P:FreeSql.DatabaseModel.DbColumnInfo.Precision">
+            <summary>
+            暂支持 SqlServer/MySql（其他数据库待补充）
+            </summary>
+        </member>
+        <member name="P:FreeSql.DatabaseModel.DbColumnInfo.Scale">
+            <summary>
+            暂支持 SqlServer/MySql（其他数据库待补充）
+            </summary>
+        </member>
         <member name="P:FreeSql.DatabaseModel.DbColumnInfo.IsPrimary">
             <summary>
             主键
@@ -4415,7 +4425,7 @@
             <summary>
             获取指定数据库的表信息，包括表、列详情、主键、唯一键、索引、外键、备注
             </summary>
-            <param name="database"></param>
+            <param name="database">可选-默认查询当前数据库</param>
             <returns></returns>
         </member>
         <member name="M:FreeSql.IDbFirst.GetTableByName(System.String,System.Boolean)">
@@ -6077,6 +6087,21 @@
             </summary>
             <returns></returns>
         </member>
+        <member name="M:FreeSqlGlobalExtensions.Clone``1(FreeSql.ISelect{``0})">
+            <summary>
+            克隆 ISelect
+            </summary>
+        </member>
+        <member name="M:FreeSqlGlobalExtensions.Clone``2(FreeSql.ISelect{``0,``1})">
+            <summary>
+            克隆 ISelect
+            </summary>
+        </member>
+        <member name="M:FreeSqlGlobalExtensions.Clone``3(FreeSql.ISelect{``0,``1,``2})">
+            <summary>
+            克隆 ISelect
+            </summary>
+        </member>
         <member name="M:FreeSqlGlobalExtensions.IncludeMany``2(System.Collections.Generic.List{``0},IFreeSql,System.Linq.Expressions.Expression{System.Func{``0,System.Collections.Generic.IEnumerable{``1}}},System.Action{FreeSql.ISelect{``1}})">
             <summary>
             本方法实现从已知的内存 List 数据，进行和 ISelect.IncludeMany 相同功能的贪婪加载<para></para>