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这是 Sequel Pro 中特定表的结构:

续集临表

这是在命令行上查看的相同表结构:

MySQL 命令行

这是输出SHOW CREATE TABLE field_data_field_checklist_status

| field_data_field_checklist_status | 
CREATE TABLE `field_data_field_checklist_status` (
  `entity_type` varchar(128) NOT NULL DEFAULT '' COMMENT 'The entity type this data is attached to',
  `bundle` varchar(128) NOT NULL DEFAULT '' COMMENT 'The field instance bundle to which this row belongs, used when deleting a field instance',
  `deleted` tinyint(4) NOT NULL DEFAULT '0' COMMENT 'A boolean indicating whether this data item has been deleted',
  `entity_id` int(10) unsigned NOT NULL COMMENT 'The entity id this data is attached to',
  `revision_id` int(10) unsigned DEFAULT NULL COMMENT 'The entity revision id this data is attached to, or NULL if the entity type is not versioned',
  `language` varchar(32) NOT NULL DEFAULT '' COMMENT 'The language for this data item.',
  `delta` int(10) unsigned NOT NULL COMMENT 'The sequence number for this data item, used for multi-value fields',
  `field_checklist_status_value` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`entity_type`,`entity_id`,`deleted`,`delta`,`language`),
  KEY `entity_type` (`entity_type`),
  KEY `bundle` (`bundle`),
  KEY `deleted` (`deleted`),
  KEY `entity_id` (`entity_id`),
  KEY `revision_id` (`revision_id`),
  KEY `language` (`language`),
  KEY `field_checklist_status_value` (`field_checklist_status_value`)
) 
ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='Data storage for field 7 (field_checklist_status)' |

我相当有信心 MySQL 命令行表结构是准确的。这是一个 Drupal 字段表。

有谁知道为什么会有差异?

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1 回答 1

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是不是既有一个作为列的主键,又有entity_type一个作为列的多键?那么 的值Key将是模棱两可的,它会解释不一致。

在 MySQL 中检查密钥的最佳方法是运行

SHOW CREATE TABLE field_data_field_checklist_status;

它将向您显示实际的键,以及其中的列顺序。

于 2015-05-01T18:02:52.130 回答