我正在关注这篇文章:
http://www.chrismoos.com/2010/01/31/mysql-partitioning-tables-with-millions-of-rows
但是,当我运行查询对产品表(包含 500,000 行)进行分区时,出现错误:
#1503 - A UNIQUE INDEX must include all columns in the table's partitioning function
我的查询是:
ALTER TABLE parts_library PARTITION by HASH(manufacturerId) PARTITIONS 200
我的主键是id和manufacturerId的复合键,和文章中的一样,所以不明白为什么会出现这个错误。
这是我的表的创建语句:
CREATE TABLE IF NOT EXISTS `parts_library` (
`id` int(11) NOT NULL,
`dateAdded` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`typeId` int(3) NOT NULL COMMENT 'Reference to part_types',
`manufacturerId` int(11) NOT NULL DEFAULT '0',
`familyId` int(11) NOT NULL DEFAULT '454',
`partNumber` varchar(255) COLLATE utf8_unicode_ci NOT NULL COMMENT 'e.g. 6ES5123B62',
`idealForm` varchar(255) COLLATE utf8_unicode_ci NOT NULL COMMENT 'E.g. 6ES5-123-B6/2',
`comCodeId` int(11) DEFAULT NULL,
`countryOriginId` int(3) NOT NULL DEFAULT '258',
`minStockLevel` int(11) DEFAULT NULL,
`weight` decimal(11,2) DEFAULT NULL,
`width` decimal(11,2) DEFAULT NULL,
`height` decimal(11,2) DEFAULT NULL,
`depth` decimal(11,2) DEFAULT NULL,
`validated` tinyint(1) NOT NULL DEFAULT '0',
`onWeb` tinyint(1) DEFAULT '0',
`indexed` tinyint(1) NOT NULL DEFAULT '1',
`averageMargin` decimal(11,2) NOT NULL,
PRIMARY KEY (`id`,`manufacturerId`),
UNIQUE KEY `partNumber` (`partNumber`),
KEY `fk_parts_library_parts_categories1` (`typeId`),
KEY `fk_parts_library_manufacturers1` (`manufacturerId`),
KEY `fk_parts_library_geo_countries1` (`countryOriginId`),
KEY `fk_parts_library_parts_families1` (`familyId`),
KEY `indexed` (`indexed`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
如何对我的表进行分区?