标签:sel rem 数据 enc utf8mb4 prim http new innodb
建表建分区
CREATE TABLE `db`.`table_new` (
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT ‘自增id‘,
`time` datetime NOT NULL COMMENT ‘时间‘,
`clusterid` varchar(255) COLLATE utf8mb4_bin NOT NULL COMMENT ‘集群id‘,
PRIMARY KEY (`id`,`time`),
KEY `cluster_time_index` (`clusterid`,`time`),
KEY `time_index` (`time`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin COMMENT=‘table_new表‘
/*!50500 PARTITION BY RANGE COLUMNS(`time`)
(PARTITION p0001 VALUES LESS THAN ("2020-08-15 00:00:00") ENGINE = InnoDB,
PARTITION p0002 VALUES LESS THAN ("2020-08-30 00:00:00") ENGINE = InnoDB,
PARTITION p0003 VALUES LESS THAN ("2020-09-15 00:00:00") ENGINE = InnoDB,
PARTITION p9999 VALUES LESS THAN (MAXVALUE) ENGINE = InnoDB) */;
删除分区
alter table titles drop partition p0;
有表 新增分区
ALTER TABLE db.table_name
PARTITION BY RANGE COLUMNS(id)
(
PARTITION p0001 VALUES LESS THAN (10),
PARTITION p9999 VALUES LESS THAN (MAXVALUE)
);
执行 create table table_name_new as select * from table_name 报错Statement violates GTID consistency 【参考】
create table xxx as select 的方式拆分成两部分。
create table xxxx like data_mgr;
insert into xxxx select * from data_mgr;
drop delete truncate区别
drop 删除表 删除数据 无法回滚 会释放空间
truncate 不删除表 删除数据 无法回滚 会释放空间
delete 不删除表 删除指定数据
标签:sel rem 数据 enc utf8mb4 prim http new innodb
原文地址:https://www.cnblogs.com/cuiyf/p/14081439.html