text: -- 文章评分记录
  CREATE TABLE `commodity_ranking` (
    `id` BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
    `product_id` BIGINT NOT NULL COMMENT '商品ID',
    `user_id` BIGINT NOT NULL COMMENT '用户ID',
    `create_at` DATETIME NOT NULL COMMENT '打分时间'
  )
  COLLATE='utf8_unicode_ci'
  ENGINE=InnoDB
  ;