diff --git a/XCode/Configuration/TableItem.cs b/XCode/Configuration/TableItem.cs
index 7c24ae7aa..946cd38f9 100644
--- a/XCode/Configuration/TableItem.cs
+++ b/XCode/Configuration/TableItem.cs
@@ -476,6 +476,11 @@ public void Merge(IDataTable table)
             if (item.Name.EqualIgnoreCase(name)) return _all[name] = item as Field;
         }
 
+        foreach (var item in AllFields)
+        {
+            if (item.FormatedName.EqualIgnoreCase(name)) return _all[name] = item as Field;
+        }
+
         return _all[name] = null;
     }
 
diff --git a/XCode/DataAccessLayer/Database/PostgreSQL.cs b/XCode/DataAccessLayer/Database/PostgreSQL.cs
index 8687dc6ed..f31fe1f3a 100644
--- a/XCode/DataAccessLayer/Database/PostgreSQL.cs
+++ b/XCode/DataAccessLayer/Database/PostgreSQL.cs
@@ -87,7 +87,7 @@ public override String FormatKeyWord(String keyWord)
     }
 
     /// <summary>格式化数据为SQL数据</summary>
-    /// <param name="field">字段</param>
+    /// <param name="column">字段</param>
     /// <param name="value">数值</param>
     /// <returns></returns>
     public override String FormatValue(IDataColumn? column, Object? value)
@@ -110,14 +110,10 @@ public override String FormatValue(IDataColumn? column, Object? value)
         // 如果类型是Nullable的，则获取对应的类型
         type = Nullable.GetUnderlyingType(type) ?? type;
         //如果是数组，就取数组的元素类型
-        if (type?.IsArray == true)
+        if (type?.IsArray == true && column?.IsArray == true)
         {
-            //Byte[] 数组可能是 Blob，不应该当作数组字段处理
-            if (column?.IsArray == true || type != typeof(Byte[]))
-            {
-                isArrayField = true;
-                type = type.GetElementType();
-            }
+            isArrayField = true;
+            type = type.GetElementType();
         }
         if (isArrayField)
         {
@@ -135,6 +131,8 @@ public override String FormatValue(IDataColumn? column, Object? value)
             {
                 builder.Length--;
                 builder.Append("]");
+                var ts = GetElementType(type);
+                if (!string.IsNullOrWhiteSpace(ts)) builder.Append("::").Append(ts).Append("[]");
             }
             else
             {
@@ -149,6 +147,21 @@ public override String FormatValue(IDataColumn? column, Object? value)
         }
     }
 
+    private static string? GetElementType(Type? type)
+    {
+        if (type != null)
+        {
+            if (type == typeof(String)) return "varchar";
+            if (type == typeof(DateTime)) return "timestamp";
+            if (type == typeof(Int32)) return "integer";
+            if (type == typeof(Int64)) return "bigint";
+            if (type == typeof(Decimal)) return "numeric";
+            if (type == typeof(double)) return "numeric";
+            if (type == typeof(float)) return "numeric";
+        }
+        return string.Empty;
+    }
+
     private string ValueToSQL(Type? type, bool isNullable, object? value)
     {
         if (type == typeof(String))
diff --git a/XCode/DataAccessLayer/MetaData/DbMetaData_Negative.cs b/XCode/DataAccessLayer/MetaData/DbMetaData_Negative.cs
index b32df88b5..b6a2c31e6 100644
--- a/XCode/DataAccessLayer/MetaData/DbMetaData_Negative.cs
+++ b/XCode/DataAccessLayer/MetaData/DbMetaData_Negative.cs
@@ -202,7 +202,7 @@ protected virtual String CheckColumnsChange(IDataTable entitytable, IDataTable d
     {
         var sb = new StringBuilder();
         var etdic = entitytable.Columns.ToDictionary(e => this.FormatName(e), e => e, StringComparer.OrdinalIgnoreCase);
-        var dbdic = dbtable.Columns.ToDictionary(e => e.ColumnName.ToLower(), e => e, StringComparer.OrdinalIgnoreCase);
+        var dbdic = dbtable.Columns.ToDictionary(e => this.FormatName(e), e => e, StringComparer.OrdinalIgnoreCase);
 
         #region 新增列
         foreach (var item in entitytable.Columns)
@@ -237,7 +237,7 @@ protected virtual String CheckColumnsChange(IDataTable entitytable, IDataTable d
         for (var i = dbtable.Columns.Count - 1; i >= 0; i--)
         {
             var item = dbtable.Columns[i];
-            if (!etdic.ContainsKey(item.ColumnName))
+            if (!etdic.ContainsKey(this.FormatName(item)))
             {
                 if (!String.IsNullOrEmpty(item.Description)) PerformSchema(sb, @readonly || onlyCreate, DDLSchema.DropColumnDescription, item);
                 PerformSchema(sbDelete, @readonly || onlyCreate, DDLSchema.DropColumn, item);