Поиск по таблице, как сделать?

CREATE TABLE `sale` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `brand` varchar(255) DEFAULT NULL,
  `gname` varchar(255) DEFAULT NULL,
  `sku` varchar(255) DEFAULT NULL,
  `price` varchar(255) DEFAULT NULL,
  `description` text,
  `tagdescription` varchar(255) DEFAULT NULL,
  `tagtitle` varchar(255) DEFAULT NULL,
  `tagkeywords` varchar(255) DEFAULT NULL,
  `adddate` datetime DEFAULT NULL,
  `image` varchar(255) DEFAULT NULL,
  `photos` text,
  `url` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `url` (`url`) USING BTREE,
  FULLTEXT KEY `brand` (`brand`),
  FULLTEXT KEY `sku` (`sku`),
  FULLTEXT KEY `description` (`description`),
  FULLTEXT KEY `tagdescription` (`tagdescription`),
  FULLTEXT KEY `tagtitle` (`tagtitle`),
  FULLTEXT KEY `tagkeywords` (`tagkeywords`),
  FULLTEXT KEY `price` (`price`),
  FULLTEXT KEY `gname` (`gname`)
) ENGINE=MyISAM AUTO_INCREMENT=1734271 DEFAULT CHARSET=utf8;

$result = mysql_query("SELECT *, MATCH brand AGAINST ('".$_GET['q']."') + MATCH gname AGAINST ('".$_GET['q']."') + MATCH description AGAINST ('".$_GET['q']."') + MATCH tagdescription AGAINST ('".$_GET['q']."') as relev FROM sale HAVING relev>0 ORDER BY relev DESC");