MySQL分区表

#删除主键
ALTER TABLE `ts_task_lock_set` DROP PRIMARY KEY;

#删除外键
ALTER TABLE `ts_task_lock_set` DROP FOREIGN KEY fk_ts_task_lock_set_ae_facility;
ALTER TABLE `ts_task_lock_set` DROP FOREIGN KEY fk_ts_task_lock_set_task;
ALTER TABLE `ts_task_lock_set` DROP FOREIGN KEY fk_ts_task_lock_set_task_lock_set;

#创建分区（该分区创建是在已存在的表上面进行修改，不影响表中数据）
ALTER TABLE `ts_task_lock_set` PARTITION BY RANGE (Month(createdAt)) (
        PARTITION tls19 VALUES LESS THAN (TO_DAYS(‘20190101‘)),
    PARTITION tls20 VALUES LESS THAN (TO_DAYS(‘20200101‘)),
    PARTITION tls21 VALUES LESS THAN (TO_DAYS(‘20210101‘)),
    PARTITION tls22 VALUES LESS THAN (TO_DAYS(‘20220101‘)),
    PARTITION tls23 VALUES LESS THAN (TO_DAYS(‘20230101‘)),
    PARTITION tls24 VALUES LESS THAN (TO_DAYS(‘20240101‘)),
    PARTITION tls25 VALUES LESS THAN (TO_DAYS(‘20250101‘)),
    PARTITION tls26 VALUES LESS THAN (TO_DAYS(‘20260101‘)),
    PARTITION tls27 VALUES LESS THAN (TO_DAYS(‘20270101‘)),
    PARTITION tls60 VALUES LESS THAN MAXVALUE 
);