Mysql 8.0版本开始，不允许创建 MyISAM 分区表

从MySQL 8.0版本开始，就不允许创建 MyISAM 分区表了，只允许创建已经实现了本地分区策略的引擎。

到目前为止，只有InnoDB和NDB这两个引擎支持本地分区策略。

【1】实际测试

（1）数据库版本号

# 获取版本号
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);

创建成功。

（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);

创建失败：

错误代码：1497
The mix of handlers in the partitions is not allowed in this version of MySQL

（4）建表（不支持本地分区策略）

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;