July 27, 2018
MySQL 性能优化神器 Explain 使用分析, EXPLAIN结果的参数详解, Mysql性能调优工具
准备工作
DROP TABLE IF EXISTS `t1`;
CREATE TABLE `t1` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`other_column` varchar(30) NOT NULL DEFAULT '',
`other_column2` varchar(30) NOT NULL DEFAULT '',
`other_column3` varchar(30) NOT NULL DEFAULT '',
PRIMARY KEY (`id`),
KEY `idx` (`other_column`),
KEY `u_idx` (`other_column2`,`other_column3`),
KEY… Read More