administrator/components/com_admin/sql/updates/mysql/3.4.0-2014-07-26.sql

INSERT INTO `#__extensions` (`extension_id`, `name`, `type`, `element`, `folder`, `client_id`, `enabled`, `access`, `protected`, `manifest_cache`, `params`, `custom_data`, `system_data`, `checked_out`, `checked_out_time`, `ordering`, `state`) VALUES
(452, 'plg_system_session', 'plugin', 'session', 'system', 0, 1, 1, 1, '', '', '', '', 0, '0000-00-00 00:00:00', 0, 0),
(453, 'plg_user_session', 'plugin', 'session', 'user', 0, 1, 1, 1, '', '{"session_update_flag_name":"refresh"}', '', '', 0, '0000-00-00 00:00:00', 0, 0);