0
我有表com_news
与32000记录。Mysql“发送数据”太长
表com_news
CREATE TABLE IF NOT EXISTS `com_news` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`ts` int(11) NOT NULL,
`title` varchar(255) NOT NULL,
`text` longtext NOT NULL,
`id_user` int(11) NOT NULL DEFAULT '0',
`id_catalog` int(11) NOT NULL DEFAULT '0',
`status` tinyint(4) NOT NULL DEFAULT '1' COMMENT '0-off,1-on',
`window_title` varchar(255) DEFAULT NULL,
`meta_keywords` varchar(255) DEFAULT NULL,
`meta_description` text,
`source` varchar(255) DEFAULT NULL,
`img` int(11) NOT NULL DEFAULT '0',
`to_twitter` tinyint(4) NOT NULL DEFAULT '0',
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=32719 ;
查询
SELECT COUNT(*) FROM `com_news` WHERE status=1 AND ts>=1398888007
档案
starting 0.000009
checking query cache for query 0.000027
Opening tables 0.000014
System lock 0.000003
Table lock 0.000016
init 0.000015
optimizing 0.000009
statistics 0.000009
preparing 0.000008
executing 0.000004
Sending data 0.517773
end 0.000013
query end 0.000003
freeing items 0.000025
storing result in query cache 0.000006
logging slow query 0.000002
cleaning up 0.000003
为什么发送数据太长?
Apache/2.2.15 (CentOS)
MySQL: 5.1.73
那么,在索引(状态,TS)[或者是(TS,状态);我永远不会记得]可能会有所帮助。 – Strawberry