mysql 分区

Posted 2020-09-11 Loi

 

重建主键，并分区

ALTER TABLE `tb_pub_app_income`
 MODIFY COLUMN `end_date`  datetime NOT NULL COMMENT ‘结束日期‘ AFTER `start_date`,
 DROP PRIMARY KEY,
 ADD PRIMARY KEY (`id`, `end_date`);

alter table tb_pub_app_income PARTITION BY RANGE COLUMNS(end_date)(
 PARTITION p0 VALUES LESS THAN (‘2017-4-1‘) ,
 PARTITION p201704 VALUES LESS THAN (‘2017-5-1‘) ,
 PARTITION p201705 VALUES LESS THAN (‘2017-6-1‘) ,
 PARTITION p201706 VALUES LESS THAN (‘2017-7-1‘) ,
 PARTITION p201707 VALUES LESS THAN (‘2017-8-1‘) ,
 PARTITION p201708 VALUES LESS THAN (‘2017-9-1‘) ,
 PARTITION p201709 VALUES LESS THAN (‘2017-10-1‘) ,
 PARTITION p201710 VALUES LESS THAN (‘2017-11-1‘) ,
 PARTITION p201711 VALUES LESS THAN (‘2017-12-1‘) ,
 PARTITION p201712 VALUES LESS THAN (‘2018-1-1‘)
);

 

追加分区

alter table tb_pub_app_income add PARTITION(
    PARTITION p201801 VALUES LESS THAN (‘2018-2-1‘)
);

 

追加分区时报 VALUES LESS THAN value must be strictly increasing for each partition 错的原因是 最后分区太大了 ，将对应分区删除即可

/*!50500 PARTITION BY RANGE  COLUMNS(end_date)
(PARTITION p0 VALUES LESS THAN (‘2016-10-1‘) ENGINE = InnoDB,
 PARTITION p201610 VALUES LESS THAN (‘2016-11-1‘) ENGINE = InnoDB,
 PARTITION p201611 VALUES LESS THAN (‘2016-12-1‘) ENGINE = InnoDB,
 PARTITION p201612 VALUES LESS THAN (‘2017-1-1‘) ENGINE = InnoDB,
 PARTITION p201701 VALUES LESS THAN (‘2017-2-1‘) ENGINE = InnoDB,
 PARTITION p201702 VALUES LESS THAN (‘2017-3-1‘) ENGINE = InnoDB,
 PARTITION p201703 VALUES LESS THAN (‘2017-4-1‘) ENGINE = InnoDB,
 PARTITION p201704 VALUES LESS THAN (‘2017-5-1‘) ENGINE = InnoDB,
 PARTITION p201705 VALUES LESS THAN (‘2017-6-1‘) ENGINE = InnoDB,
 PARTITION p201706 VALUES LESS THAN (‘2017-7-1‘) ENGINE = InnoDB,
 PARTITION p201707 VALUES LESS THAN (‘2017-8-1‘) ENGINE = InnoDB,
 PARTITION p201708 VALUES LESS THAN (‘2017-9-1‘) ENGINE = InnoDB,
 PARTITION p201709 VALUES LESS THAN (‘2017-10-1‘) ENGINE = InnoDB,
 PARTITION p201710 VALUES LESS THAN (‘2017-11-1‘) ENGINE = InnoDB,
 PARTITION p201711 VALUES LESS THAN (‘2017-12-1‘) ENGINE = InnoDB,
 PARTITION p201712 VALUES LESS THAN (‘2018-1-1‘) ENGINE = InnoDB,
 PARTITION p1 VALUES LESS THAN (MAXVALUE) ENGINE = InnoDB) */;

 

删除分区

alter table tb_pub_app_income drop PARTITION p1;

 

参考资料：

1、http://blog.csdn.net/tjcyjd/article/details/11194489

2、 http://bbs.csdn.net/topics/390121058