ttExecute("UPDATE `tt_site_config` SET param_value = '1.18.59', modified = now() where param_name = 'version_db' and param_value = '1.18.55'");
ttExecute("ALTER TABLE `tt_files` ADD `file_key` varchar(32) AFTER `remote_id`");
ttExecute("UPDATE `tt_site_config` SET param_value = '1.18.60', modified = now() where param_name = 'version_db' and param_value = '1.18.59'");
ttExecute("UPDATE `tt_site_config` SET param_value = '1.18.59', modified = now() where param_name = 'version_db' and param_value = '1.18.55'");
ttExecute("ALTER TABLE `tt_files` ADD `file_key` varchar(32) AFTER `remote_id`");
ttExecute("UPDATE `tt_site_config` SET param_value = '1.18.60', modified = now() where param_name = 'version_db' and param_value = '1.18.59'");