-- 二手车审核记录表
CREATE TABLE `used_car_detail_audit` (
  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键ID',
  `car_id` bigint(20) unsigned NOT NULL COMMENT '关联used_car_detail.id',
  `auditor_id` bigint(20) unsigned NOT NULL COMMENT '审核人ID',
  `audit_status` tinyint(1) NOT NULL COMMENT '审核状态:0=待审核,1=通过,2=拒绝',
  `audit_reason` varchar(500) DEFAULT NULL COMMENT '审核理由/拒绝原因',
  `before_status` tinyint(1) DEFAULT NULL COMMENT '审核前状态',
  `after_status` tinyint(1) DEFAULT NULL COMMENT '审核后状态',
  `created_at` timestamp NULL DEFAULT NULL COMMENT '审核时间',
  `updated_at` timestamp NULL DEFAULT NULL,

  PRIMARY KEY (`id`),
  KEY `idx_car_id` (`car_id`),
  KEY `idx_auditor_id` (`auditor_id`),
  KEY `idx_audit_status` (`audit_status`),
  KEY `idx_created_at` (`created_at`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='二手车审核记录表';