mysql 分区问题！！！

[chen_2001]

我创建了一个表：
create table mytest(
id int not null,
starttime timestamp,
primary key(id, starttime)
)
现在想根据周来分区，该怎么写？？？
如果想让它这样循环下去，又该怎么写，或者说可以自动添加分区

[luoyoumou]

-- 一般都是根据月来分区，你根据周来分区能有什么好处呢？

[luoyoumou]

-- 按月分区给个例子给你：

ALTER TABLE mytest
partition BY range(to_days(starttime)) (
partition p_2010   VALUES LESS THAN (to_days('2011-01-01')),
partition p_201101 VALUES LESS THAN (to_days('2011-02-01')),
partition p_201102 VALUES LESS THAN (to_days('2011-03-01')),
partition p_201103 VALUES LESS THAN (to_days('2011-04-01')),
partition p_201104 VALUES LESS THAN (to_days('2011-05-01')),
partition p_201105 VALUES LESS THAN (to_days('2011-06-01')),
partition p_201106 VALUES LESS THAN (to_days('2011-07-01')),
partition p_201107 VALUES LESS THAN (to_days('2011-08-01')),
partition p_201108 VALUES LESS THAN (to_days('2011-09-01')),
partition p_201109 VALUES LESS THAN (to_days('2011-10-01')),
partition p_201110 VALUES LESS THAN (to_days('2011-11-01')),
partition p_201111 VALUES LESS THAN (to_days('2011-12-01')),
partition p_201112 VALUES LESS THAN (to_days('2012-01-01')),
partition p_2012   VALUES LESS THAN (to_days('2013-01-01')),
partition p_max    VALUES LESS THAN (maxvalue) );

[三千大千世界]

用组合分区吧 单独分区的话 数据量还是太大

[rczjp]

一周300W那按周来分区可以

[ACMAIN_CHM]

按YEARWEEK分就行了。

partition BY range(YEARWEEK(starttime))

[chen_2001]

因为每天有将近4、50w条记录插入这个表，一周有300w左右行，一个月1500w左右，所以用周来做表分区，不知大家有什么更好的建议？

[chen_2001]

partition BY range(YEARWEEK(starttime))分区会提示：
ERROR 1486: Constant, random or timezone-dependent expressions in (sub)partitioning function are not allowed

[chen_2001]

还是没有解决,期望高手给出合理的解决办法

[sunzhujie001]

MySQL 5.5支持

PARTITION BY RANGE ( UNIX_TIMESTAMP(starttime ) )