 CREATE TABLE `admin_system_messages` (
   `identity` varchar(100) NOT NULL COMMENT 'Message id',
   `severity` smallint(5) unsigned NOT NULL DEFAULT '0' COMMENT 'Problem type',
-  `created_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00' COMMENT 'Create date',
+  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'Create date',
   PRIMARY KEY (`identity`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='Admin System Messages';
 /*!40101 SET character_set_client = @saved_cs_client */;

  `parent_item_id` int(10) unsigned DEFAULT NULL COMMENT 'Parent Item Id',
  `quote_address_id` int(10) unsigned NOT NULL DEFAULT '0' COMMENT 'Quote Address Id',
  `quote_item_id` int(10) unsigned NOT NULL DEFAULT '0' COMMENT 'Quote Item Id',
  `created_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00' COMMENT 'Created At',
  `updated_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00' ON UPDATE CURRENT_TIMESTAMP COMMENT 'Updated At',
  `applied_rule_ids` text COMMENT 'Applied Rule Ids',
  `additional_data` text COMMENT 'Additional Data',

  `link_file` varchar(255) DEFAULT NULL COMMENT 'Link File',
  `link_type` varchar(255) DEFAULT NULL COMMENT 'Link Type',
  `status` varchar(50) DEFAULT NULL COMMENT 'Status',
  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'Creation Time',
  `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT 'Update Time',
  PRIMARY KEY (`item_id`),
  KEY `DOWNLOADABLE_LINK_PURCHASED_ITEM_LINK_HASH` (`link_hash`),
  KEY `DOWNLOADABLE_LINK_PURCHASED_ITEM_ORDER_ITEM_ID` (`order_item_id`),
