select partition_name part,partition_expression expr,partition_description descr,table_rows from INFORMATION_SCHEMA.PARTITIONS where TABLE_SCHEMA=SCHEMA() AND TABLE_NAME=‘mx_domain‘
//查看分区信息
CREATE TABLE `mx_domain` ( `id` int(10) NOT NULL AUTO_INCREMENT, `name` varchar(100) NOT NULL, PRIMARY KEY (`id`), KEY `id` (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=164612 DEFAULT CHARSET=latin1 COMMENT=‘域名表 所有的 域名现在全部放在这里面‘
PARTITION BY KEY (id) PARTITIONS 200
原文：http://www.cnblogs.com/timelesszhuang/p/4122063.html