diff --git a/Src/Asp.Net/SqlSugar/Abstract/CodeFirstProvider/CodeFirstProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/CodeFirstProvider/CodeFirstProvider.cs
index 267a45878..6ecaf52a1 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/CodeFirstProvider/CodeFirstProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/CodeFirstProvider/CodeFirstProvider.cs
@@ -371,6 +371,7 @@ namespace SqlSugar
                 {
                     this.Context.DbMaintenance.BackupTable(tableName, tableName + DateTime.Now.ToString("yyyyMMddHHmmss"), MaxBackupDataRows);
                 }
+                ExistLogicEnd(entityColumns);
             }
         }
 
@@ -391,6 +392,10 @@ namespace SqlSugar
                 this.Context.DbMaintenance.AddPrimaryKey(tableName, item.DbColumnName);
         }
 
+        protected virtual void ExistLogicEnd(List<EntityColumnInfo> dbColumns) 
+        {
+
+        }
         protected virtual void ConvertColumns(List<DbColumnInfo> dbColumns)
         {
 
diff --git a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/CodeFirst/PostgreSQLCodeFirst.cs b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/CodeFirst/PostgreSQLCodeFirst.cs
index 3899fcc29..f3e2cc4e8 100644
--- a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/CodeFirst/PostgreSQLCodeFirst.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/CodeFirst/PostgreSQLCodeFirst.cs
@@ -7,6 +7,16 @@ namespace SqlSugar
 {
     public class PostgreSQLCodeFirst : CodeFirstProvider
     {
+        protected override void ExistLogicEnd(List<EntityColumnInfo> dbColumns)
+        {
+            foreach (EntityColumnInfo column in dbColumns) 
+            {
+                if (column.DefaultValue != null) 
+                {
+                    this.Context.DbMaintenance.AddDefaultValue(column.DbTableName,column.DbColumnName,column.DefaultValue.ToSqlValue());
+                }
+            }
+        }
         public override void NoExistLogic(EntityInfo entityInfo)
         {
             var tableName = GetTableName(entityInfo);
diff --git a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
index 50affd9a1..5ed83c6db 100644
--- a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
@@ -249,6 +249,10 @@ namespace SqlSugar
         #endregion
 
         #region Methods
+        public override bool AddDefaultValue(string tableName, string columnName, string defaultValue)
+        {
+            return base.AddDefaultValue(this.SqlBuilder.GetTranslationTableName(tableName), this.SqlBuilder.GetTranslationTableName(columnName), defaultValue);
+        }
         public override bool AddColumnRemark(string columnName, string tableName, string description)
         {
             tableName = this.SqlBuilder.GetTranslationTableName(tableName);