合并商品编号迁移

backend/migrations/000001_init.sql

@@ -75,6 +75,7 @@ CREATE TABLE IF NOT EXISTS game_accounts (
 -- 租号商品列表：用户发布的出租商品
 CREATE TABLE IF NOT EXISTS rental_listings (
   id BIGINT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
+  listing_no VARCHAR(20) NOT NULL COMMENT '商品编号，格式yyyyMMddNNNN',
   account_id BIGINT UNSIGNED NOT NULL COMMENT '关联的游戏账号ID',
   owner_id BIGINT UNSIGNED NOT NULL COMMENT '号主ID',
   price DECIMAL(12,2) NOT NULL DEFAULT 0.00 COMMENT '租金(元/小时)',
@@ -86,12 +87,21 @@ CREATE TABLE IF NOT EXISTS rental_listings (
   published_at DATETIME NULL COMMENT '发布时间',
   created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
   updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  UNIQUE KEY uk_rental_listings_listing_no (listing_no),
   KEY idx_rental_listings_account_id (account_id),
   KEY idx_rental_listings_owner_id (owner_id),
   KEY idx_rental_listings_filter (status, review_status, in_transaction, price),
   KEY idx_rental_listings_published (status, review_status, published_at DESC)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='租号商品列表';
 
+-- 商品编号日序列表：记录每天已分配的最大序号
+CREATE TABLE IF NOT EXISTS listing_no_sequences (
+  biz_date CHAR(8) PRIMARY KEY COMMENT '业务日期yyyyMMdd',
+  next_seq INT NOT NULL DEFAULT 0 COMMENT '当日已分配最大序号',
+  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='商品编号日序列表';
+
 -- -------------------------------------------
 -- 订单相关表
 -- -------------------------------------------