Mysql分区表和普通表互转的实现示例

CREATE TABLE `fg_pm_nbiot_cel_h_cel_t` (
  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `int_id` decimal(20,0) DEFAULT NULL COMMENT '网元标识int_id',
  `batch` varchar(255) NOT NULL COMMENT '批次',
  `create_time` datetime DEFAULT NULL COMMENT '创建时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 ROW_FORMAT=COMPACT COMMENT='NB-IoT小区性能数据'

##先将primary key 为id的删除，再加上id,batch组合的主键（分区表要求分区字段需要包含在primary key中）
ALTER TABLE `fg_pm_nbiot_cel_h_cel` DROP PRIMARY KEY, ADD PRIMARY KEY(`id`,`batch`);

##增加分区信息
alter table fg_pm_nbiot_cel_h_cel partition by RANGE COLUMNS(batch) (
    PARTITION p202106020000 VALUES LESS THAN ( '202106020100' )
);

##主键还原只用id做主键，先删除，建回来
ALTER TABLE `fg_pm_nbiot_cel_h_cel` DROP PRIMARY KEY, ADD PRIMARY KEY(`id`);

##移除分区信息
ALTER TABLE fg_pm_nbiot_cel_h_cel remove partitioning;