ALTER TABLE `site_plugin_maintenance_messages` ADD  `item_spam` INT( 1 ) NOT NULL;
ALTER TABLE `site_plugin_maintenance_messages` ADD  `log_ip` varchar( 50 ) NOT NULL;
ALTER TABLE `site_plugin_maintenance_messages` ADD  `log_domain` varchar( 255 ) NOT NULL;
ALTER TABLE `site_plugin_maintenance_messages` ADD  `log_agent` varchar(255) NOT NULL;