diff --git a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
index 77cd2a828..4b57a7f27 100644
--- a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
@@ -385,7 +385,16 @@ WHERE tgrelid = '"+tableName+"'::regclass");
             }
             var oldDatabaseName = this.Context.Ado.Connection.Database;
             var connection = this.Context.CurrentConnectionConfig.ConnectionString;
-            connection = connection.Replace(oldDatabaseName, "postgres");
+            if (Regex.Matches(connection, oldDatabaseName).Count > 1)
+            {
+                var builder = new Npgsql.NpgsqlConnectionStringBuilder(connection);
+                builder.Database = "postgres";
+                connection = builder.ConnectionString;
+            }
+            else
+            {
+                connection = connection.Replace(oldDatabaseName, "postgres");
+            }
             var newDb = new SqlSugarClient(new ConnectionConfig()
             {
                 DbType = this.Context.CurrentConnectionConfig.DbType,
diff --git a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLInsertBuilder.cs b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLInsertBuilder.cs
index 6d2d7742c..0ae84067d 100644
--- a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLInsertBuilder.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLInsertBuilder.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 using System.Linq;
 using System.Text;
 
@@ -93,6 +94,10 @@ namespace SqlSugar
                             {
                                 return FormatDateTimeOffset(it.Value);
                             }
+                            else if (it.Value is decimal v)
+                            {
+                                return v.ToString(CultureInfo.InvariantCulture);
+                            }
                             else if (it.IsArray&&it.Value!=null) 
                             {
                                 return FormatValue(it.Value,it.PropertyName,i,it);
@@ -172,6 +177,10 @@ namespace SqlSugar
                 {
                     return "'" + value.ToString().ToSqlFilter() + "'";
                 }
+                else if (value is decimal v)
+                {
+                    return v.ToString(CultureInfo.InvariantCulture);
+                }
                 else
                 {
                     return "'" + value.ToString() + "'";
@@ -229,6 +238,10 @@ namespace SqlSugar
                 {
                     return N + "'" + Convert.ToDouble(value).ToString() + "'";
                 }
+                else if (value is decimal v)
+                {
+                    return v.ToString(CultureInfo.InvariantCulture);
+                }
                 else
                 {
                     return N + "'" + value.ToString() + "'";
diff --git a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLUpdateBuilder.cs b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLUpdateBuilder.cs
index 64225d199..b29572e07 100644
--- a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLUpdateBuilder.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLUpdateBuilder.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 using System.Text;
 
@@ -43,15 +44,15 @@ namespace SqlSugar
             else
             {
                 var type =UtilMethods.GetUnderType(value.GetType());
-                if (type == UtilConstants.ByteArrayType||type == UtilConstants.DateType||columnInfo.IsArray||columnInfo.IsJson)
+                if (type == UtilConstants.ByteArrayType || type == UtilConstants.DateType || columnInfo.IsArray || columnInfo.IsJson)
                 {
-                    var parameterName = this.Builder.SqlParameterKeyWord + name +"_"+ i;
+                    var parameterName = this.Builder.SqlParameterKeyWord + name + "_" + i;
                     var paramter = new SugarParameter(parameterName, value);
-                    if (columnInfo.IsJson) 
+                    if (columnInfo.IsJson)
                     {
                         paramter.IsJson = true;
                     }
-                    if (columnInfo.IsArray) 
+                    if (columnInfo.IsArray)
                     {
                         paramter.IsArray = true;
                     }
@@ -86,6 +87,10 @@ namespace SqlSugar
                 {
                     return "'" + value.ToString().ToSqlFilter() + "'";
                 }
+                else if (value is decimal v)
+                {
+                    return v.ToString(CultureInfo.InvariantCulture);
+                }
                 else
                 {
                     return "'" + value.ToString() + "'";