   `group_manager` varchar(155) DEFAULT NULL,
   `group_descs` varchar(255) DEFAULT NULL,
   `created_by` varchar(155) NOT NULL,
-  `created_on` datetime NOT NULL,
+  `created_on` datetime NOT NULL default CURRENT_TIMESTAMP,
   `edited_by` varchar(155) NOT NULL,
   `edited_on` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
   PRIMARY KEY (`id`)

  `blocked` enum('true','false') DEFAULT 'false',
  `rules` text,
  `created_by` varchar(155) NOT NULL,
  `created_on` datetime NOT NULL,
  `edited_by` varchar(155) NOT NULL,
  `edited_on` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;

  `session_data` longblob,
  `global_data` longblob,
  `created_by` varchar(155) NOT NULL,
  `created_on` datetime NOT NULL default CURRENT_TIMESTAMP,
  `edited_by` varchar(155) NOT NULL,
  `edited_on` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`)
