`set_id` int(11) NOT NULL,
`marcfield` char(3) NOT NULL,
`marcsubfield` char(1) NOT NULL,
+ `operator` varchar(8) NOT NULL default 'equal',
`marcvalue` varchar(80) NOT NULL,
CONSTRAINT `oai_sets_mappings_ibfk_1` FOREIGN KEY (`set_id`) REFERENCES `oai_sets` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;