Mysql 8.0版本開始，不容許建立 MyISAM 分區表

從MySQL 8.0版本開始，就不容許建立 MyISAM 分區表了，只容許建立已經實現了本地分區策略的引擎。

到目前爲止，只有InnoDB和NDB這兩個引擎支持本地分區策略。

【1】實際測試

（1）數據庫版本號

# 獲取版本號
SELECT VERSION(); # 8.0.12

（2）建表（InnoDB引擎）

CREATE TABLE `t_innodb` (
  `ftime` DATETIME NOT NULL,
  `c` INT(11) DEFAULT NULL,
  KEY (`ftime`)
) ENGINE=INNODB DEFAULT CHARSET=latin1
PARTITION BY RANGE (YEAR(ftime))
(PARTITION p_2017 VALUES LESS THAN (2017) ENGINE = INNODB,
 PARTITION p_2018 VALUES LESS THAN (2018) ENGINE = INNODB,
 PARTITION p_2019 VALUES LESS THAN (2019) ENGINE = INNODB,
 PARTITION p_others VALUES LESS THAN MAXVALUE ENGINE = INNODB);

建立成功。

（3）建表（MyiSAM引擎）

CREATE TABLE `t_myisam` (
  `ftime` DATETIME NOT NULL,
  `c` INT(11) DEFAULT NULL,
  KEY (`ftime`)
) ENGINE=INNODB DEFAULT CHARSET=latin1
PARTITION BY RANGE (YEAR(ftime))
(PARTITION p_2017 VALUES LESS THAN (2017) ENGINE = MYISAM,
 PARTITION p_2018 VALUES LESS THAN (2018) ENGINE = MYISAM,
 PARTITION p_2019 VALUES LESS THAN (2019) ENGINE = MYISAM,
 PARTITION p_others VALUES LESS THAN MAXVALUE ENGINE = MYISAM);

建立失敗：

錯誤代碼：1497
The mix of handlers in the partitions is not allowed in this version of MySQL

（4）建表（不支持本地分區策略）

CREATE TABLE `t_partition_by_hash`
(
  `id` INT AUTO_INCREMENT PRIMARY KEY,
  `sName` VARCHAR(10) NOT NULL,
  `sAge` INT(2) UNSIGNED ZEROFILL NOT NULL,
  `sAddr` VARCHAR(20) DEFAULT NULL,
  `sGrade` INT(2) NOT NULL,
  `sStuId` INT(8) DEFAULT NULL,
  `sSex` INT(1) UNSIGNED DEFAULT NULL
) ENGINE=MYISAM PARTITION BY HASH(id) PARTITIONS 4;

建立失敗：

錯誤代碼：1178
The storage engine for the table doesn't support native partitioning

 

Good Good Study, Day Day Up.

順序 選擇 循環 總結