我有以下查询...它可以工作,但运行速度非常慢。希望有人能够给我一些提示,以提高执行时间?缓慢的mysql查询。有小费吗?
SELECT tb_clients.*, tb_clients_phone_fax.*
FROM tb_clients, tb_clients_phone_fax
WHERE tb_clients.client_id=tb_clients_phone_fax.client_id
AND MATCH (client_company,client_description,client_keywords) AGAINST ('test') > 0
AND CONCAT(client_address,' ',client_city,', ',client_state,' ',client_zip) LIKE '%brooklyn%'
LIMIT 10;
编辑:
下面是表信息:
CREATE TABLE `tb_clients` (
`client_id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`client_company` varchar(254) NOT NULL,
`client_address` varchar(254) NOT NULL,
`client_street` varchar(254) NOT NULL,
`client_city` varchar(254) NOT NULL,
`client_state` varchar(254) NOT NULL,
`client_zip` varchar(45) NOT NULL,
`client_email` varchar(254) NOT NULL,
`client_website` varchar(254) NOT NULL,
`client_description` text NOT NULL,
`client_keywords` text NOT NULL,
PRIMARY KEY (`client_id`) USING BTREE,
FULLTEXT KEY `client_company` (`client_company`,`client_description`,`client_keywords`)
) ENGINE=MyISAM AUTO_INCREMENT=68347 DEFAULT CHARSET=latin1;
和
CREATE TABLE `tb_clients_phone_fax` (
`client_phone_fax_id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`client_id` int(11) unsigned NOT NULL,
`client_phone_1` varchar(45) NOT NULL,
`client_phone_2` varchar(45) NOT NULL,
`client_phone_3` varchar(45) NOT NULL,
`client_fax_1` varchar(45) NOT NULL,
`client_fax_2` varchar(45) NOT NULL,
`client_fax_3` varchar(45) NOT NULL,
PRIMARY KEY (`client_phone_fax_id`) USING BTREE
) ENGINE=MyISAM AUTO_INCREMENT=33944 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC;
我们可以假设'%brooklyn%'代表一个搜索参数吗? – ChaosPandion 2009-12-15 23:31:04
这将有助于显示每个字段的数据类型以及哪些字段是索引。 – philfreo 2009-12-15 23:34:01
是的,%brooklyn%'代表一个搜索参数。 – mike 2009-12-15 23:48:54