MySQL不同存储引擎和不同分区字段对于查询的影响(二)
008) ENGINE = InnoDB,
PARTITION p13 VALUES LESS THAN (2009) ENGINE = InnoDB,
PARTITION p14 VALUES LESS THAN (2010) ENGINE = InnoDB,
PARTITION p15 VALUES LESS THAN (2011) ENGINE = InnoDB,
PARTITION p16 VALUES LESS THAN (2012) ENGINE = InnoDB,
PARTITION p17 VALUES LESS THAN (2013) ENGINE = InnoDB,
PARTITION p18 VALUES LESS THAN (2014) ENGINE = InnoDB,
PARTITION p19 VALUES LESS THAN MAXVALUE ENGINE = InnoDB) */;
查询结果：
Sql代码
mysql> select count(*) from customer_innodb_year where id > 50000 and id < 50000
0;
+----------+
| count(*) |
+----------+
| 449999 |
+----------+
1 row in set (5.31 sec)
mysql> select count(*) from customer_innodb_year where id > 50000 and id < 50000
0;
+----------+
| count(*) |
+----------+
| 449999 |
+----------+
1 row in set (0.31 sec)
mysql> select count(*) from customer_innodb_year where regtime > '1995-01-01 00:
00:00' and regtime < '1996-01-01 00:00:00';
+----------+
| count(*) |
+----------+
| 199349 |
+----------+
1 row in set (0.47 sec)
mysql> select count(*) from customer_innodb_year where regtime > '1995-01-01 00:
00:00' and regtime < '1996-01-01 00:00:00';
+----------+
| count(*) |
+----------+
| 199349 |
+----------+
1 row in set (0.19 sec)
表三 MyISAM & PARTITION BY RANGE (id)
Sql代码
CREATE TABLE `customer_myisam_id` (
`id` int(11) NOT NULL,
`email` varchar(64) NOT NULL,
`name` varchar(32) NOT NULL,
`password` varchar(32) NOT NULL,
`phone` varchar(13) DEFAULT NULL,
`birth` date DEFAULT NULL,
`sex` int(1) DEFAULT NULL,
`avatar` blob,
`address` varchar(64) DEFAULT NULL,
`regtime` datetime DEFAULT NULL,
`lastip` varchar(15) DEFAULT NULL,
`modifytime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8
/*!50100 PARTITION BY RANGE (id)
(PARTITION p0 VALUES LESS THAN (100000) ENGINE = MyISAM,
PARTITION p1 VALUES LESS THAN (500000) ENGINE = MyISAM,
PARTITION p2 VALUES LESS THAN (1000000) ENGINE = MyISAM,
PARTITION p3 VALUES LESS THAN (1500000) ENGINE = MyISAM,
PARTITION p4 VALUES LESS THAN (2000000) ENGINE = MyISAM,
PARTITION p5 VALUES LESS THAN MAXVALUE ENGINE = MyISAM) */;
查询结果：
Sql代码
mysql> select count(*) from customer_myisam_id where id > 50000 and id < 500000;
+----------+
| count(*) |
+----------+
| 449999 |
+----------+
1 row in set (0.59 sec)
mysql> select count(*) from customer_myisam_id where id > 50000 and id < 500000;
+----------+
| count(*) |
+----------+
| 449999 |
+----------+
1 row in set (0.16 sec)
mysql> select count(*) from customer_myisam_id where regtime > '1995-01-01 00:00
:00' and regtime < '1996-01-01 00:00:00';
+----------+
| count(*) |
+----------+
| 199349 |
+----------+
1 row in set (34.17 sec)
mysql> select count(*) from customer_myisam_id where regtime > '1995-01-01 00:00
:00' and regtime < '1996-01-01 00:00:00';
+----------+
| count(*) |
+----------+
| 199349 |
+----------+
1 row in set (34.06 sec)
表四 MyISAM & PARTITION BY RANGE (year)
Sql代码
CREATE TABLE `customer_myisam_year` (
`id` int(11) NOT NULL,
`email` varchar(64) NOT NULL,
`name` varchar(32) NOT NULL,
`password` varchar(32) NOT NULL,
`phone` var