in all table creation statments, such as
CREATE TABLE `categorylinks` (
`cl_from` int(8) unsigned NOT NULL default '0',
`cl_to` varchar(255) binary NOT NULL default '',
`cl_sortkey` varchar(255) binary NOT NULL default '',
`cl_timestamp` timestamp(14) NOT NULL,
UNIQUE KEY `cl_from` (`cl_from`,`cl_to`),
KEY `cl_sortkey` (`cl_to`,`cl_sortkey`(128)),
KEY `cl_timestamp` (`cl_to`,`cl_timestamp`)
) TYPE=InnoDB;
why use binary to represent varchar, not UTF8?