mysql - 错误 "A PRIMARY KEY must include all columns in the table' s 分区函数”

Question

将列 country_id 上的分区索引添加到下表时，出现错误:

A PRIMARY KEY must include all columns in the table's partitioning function

我尝试将列 country_id 添加到包含 id 和 country_id 的 PK。但是随后出现类似的错误信息:

A UNIQUE KEY must include all columns in the table's partitioning function

CREATE TABLE `geo_city` (
  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `country_id` smallint(5) unsigned NOT NULL,
  `admin_zone_id` bigint(20) unsigned DEFAULT NULL,
  `name` varchar(128) NOT NULL,
  `lat` double NOT NULL,
  `lng` double NOT NULL,
  `population` int(10) unsigned DEFAULT NULL,
  `timezone_id` smallint(5) unsigned DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `unique_city_id_per_country` (`id`,`country_id`),
  UNIQUE KEY `idx_unique_city_per_adminzone` (`admin_zone_id`,`name`),
  KEY `country_id` (`country_id`),
  KEY `name` (`name`),
  KEY `idx_lat_lng` (`lat`,`lng`),
  KEY `admin_zone_id` (`admin_zone_id`),
  KEY `population` (`population`),
  KEY `timezone_id` (`timezone_id`)
) ENGINE=InnoDB AUTO_INCREMENT=496831 DEFAULT CHARSET=utf8;

然后:

ALTER TABLE geo.geo_city PARTITION BY RANGE (country_id) (
                PARTITION p0 VALUES LESS THAN (2),
                PARTITION p1 VALUES LESS THAN (10),
                PARTITION p2 VALUES LESS THAN (20),
                PARTITION p3 VALUES LESS THAN (30),
                PARTITION pRemain VALUES LESS THAN MAXVALUE
            )

现在怎么办？

Answer 1

您需要将所有分区键添加到所有主键和唯一键中。