创建2张用户表user、user2，表结构相同，但user表使用InnoDB存储引擎，而user2表则使用 MyISAM存储引擎。
复制代码 代码如下:
-- Table "user" DDL
CREATE TABLE `user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(50) DEFAULT NULL,
`email` varchar(100) DEFAULT NULL,
`age` tinyint(4) DEFAULT NULL,
`nickname` varchar(50) DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `email` (`email`),
KEY `name` (`name`),
KEY `age` (`age`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- Table "user2" DDL
CREATE TABLE `user2` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(50) DEFAULT NULL,
`email` varchar(100) DEFAULT NULL,
`age` tinyint(4) DEFAULT NULL,
`nickname` varchar(50) DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `email` (`email`),
KEY `name` (`name`),
KEY `age` (`age`)
) ENGINE=MyISAM AUTO_INCREMENT=131610 DEFAULT CHARSET=utf8;

分别插入10W条测试数据到表user & user2。
复制代码 代码如下:
<?php
$example = array(
'@qq.com',
'@sina.com.cn',
'@163.com',
'@126.com',
'@gmail.com',
'@yahoo.com',
'@live.com',
'@msn.com',
'@cisco.com',
'@microsoft.com',
'@ibm.com',
'@apple.com');
$con = mysql_connect("localhost", "root", "your_mysql_password");
mysql_select_db("index_test", $con);
//添加10W测试数据到表 user & user2
for($i=0; $i<100000; $i++)
{
$temp = md5(uniqid());
$name = substr($temp, 0, 16);
$email = substr($temp, 8, 12).$example[array_rand($example, 1)];
$age = rand(18, 99);
$nickname = substr($temp, 16, 16);
mysql_query("INSERT INTO user(name,email,age,nickname) VALUES('$name','$email',$age,'$nickname')");
mysql_query("INSERT INTO user2(name,email,age,nickname) VALUES('$name','$email',$age,'$nickname')");
}
mysql_close($con);

echo 'success';
?>