mall数据库文件

mall_sql/schemas/ak_contents_product_extension.sql

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+-- ===================================================================
+-- 基于ak_contents的商品扩展方案（不推荐但可行）
+-- ===================================================================
+
+-- 1. 为ak_contents添加商品相关字段
+DO $$
+BEGIN
+    -- 添加内容类型字段区分资讯和商品
+    IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='ak_contents' AND column_name='content_type') THEN
+        ALTER TABLE public.ak_contents ADD COLUMN content_type VARCHAR(50) DEFAULT 'article';
+        COMMENT ON COLUMN public.ak_contents.content_type IS '内容类型：article=资讯，product=商品';
+    END IF;
+    
+    -- 添加商品特有字段
+    IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='ak_contents' AND column_name='product_code') THEN
+        ALTER TABLE public.ak_contents ADD COLUMN product_code VARCHAR(50);
+        COMMENT ON COLUMN public.ak_contents.product_code IS '商品编码（仅商品类型使用）';
+    END IF;
+    
+    IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='ak_contents' AND column_name='base_price') THEN
+        ALTER TABLE public.ak_contents ADD COLUMN base_price DECIMAL(12,2);
+        COMMENT ON COLUMN public.ak_contents.base_price IS '商品基础价格（仅商品类型使用）';
+    END IF;
+    
+    IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='ak_contents' AND column_name='stock_quantity') THEN
+        ALTER TABLE public.ak_contents ADD COLUMN stock_quantity INTEGER DEFAULT 0;
+        COMMENT ON COLUMN public.ak_contents.stock_quantity IS '库存数量（仅商品类型使用）';
+    END IF;
+    
+    IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='ak_contents' AND column_name='merchant_id') THEN
+        ALTER TABLE public.ak_contents ADD COLUMN merchant_id UUID;
+        COMMENT ON COLUMN public.ak_contents.merchant_id IS '商家ID（仅商品类型使用）';
+    END IF;
+END
+$$;
+
+-- 2. 创建商品特有的附加表
+
+-- 商品SKU表
+CREATE TABLE IF NOT EXISTS public.ak_product_skus (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    content_id UUID NOT NULL REFERENCES public.ak_contents(id) ON DELETE CASCADE,
+    sku_code VARCHAR(100) UNIQUE NOT NULL,
+    specification_values JSONB NOT NULL DEFAULT '{}',
+    price DECIMAL(12,2) NOT NULL,
+    stock_quantity INTEGER DEFAULT 0,
+    is_default BOOLEAN DEFAULT false,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- 商品规格表
+CREATE TABLE IF NOT EXISTS public.ak_product_specifications (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    content_id UUID NOT NULL REFERENCES public.ak_contents(id) ON DELETE CASCADE,
+    spec_name VARCHAR(100) NOT NULL,
+    spec_values TEXT[] NOT NULL,
+    is_required BOOLEAN DEFAULT false,
+    sort_order INTEGER DEFAULT 0,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- 商品属性表
+CREATE TABLE IF NOT EXISTS public.ak_product_attributes (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    content_id UUID NOT NULL REFERENCES public.ak_contents(id) ON DELETE CASCADE,
+    attribute_name VARCHAR(200) NOT NULL,
+    attribute_value TEXT NOT NULL,
+    attribute_group VARCHAR(100),
+    sort_order INTEGER DEFAULT 0,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- 3. 创建专门的商品视图
+CREATE OR REPLACE VIEW public.vw_products AS
+SELECT 
+    id,
+    title as product_name,
+    content as product_description,
+    product_code,
+    base_price,
+    stock_quantity,
+    merchant_id,
+    category_id,
+    status,
+    tags,
+    published_at as listed_at,
+    created_at,
+    updated_at,
+    -- 排除资讯相关字段
+    NULL as ai_analysis_result,
+    NULL as translation_status
+FROM public.ak_contents 
+WHERE content_type = 'product';
+
+-- 4. 添加约束和索引
+ALTER TABLE public.ak_contents ADD CONSTRAINT chk_product_code_unique 
+    CHECK (content_type != 'product' OR product_code IS NOT NULL);
+
+CREATE INDEX IF NOT EXISTS idx_ak_contents_product_type ON public.ak_contents(content_type) WHERE content_type = 'product';
+CREATE INDEX IF NOT EXISTS idx_ak_contents_product_code ON public.ak_contents(product_code) WHERE content_type = 'product';
+CREATE INDEX IF NOT EXISTS idx_ak_contents_merchant ON public.ak_contents(merchant_id) WHERE content_type = 'product';
+
+-- 注意事项和限制
+COMMENT ON VIEW public.vw_products IS '
+使用ak_contents作为商品表的注意事项：
+1. 必须设置content_type=product来区分商品和资讯
+2. 许多ak_contents的字段对商品无意义（如AI翻译相关）
+3. 查询性能可能受影响，建议添加分区
+4. 推荐使用独立的商品表设计以获得更好的架构
+';

mall_sql/schemas/mall_seo_security.sql

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+-- =====================================================================================
+-- 商城系统 SEO 优化和安全策略脚本
+-- 用途: 为商城系统添加 SEO 优化函数和 RLS 安全策略
+-- 前置条件: 需要先执行 mall_migration.sql
+-- =====================================================================================
+
+-- =====================================================================================
+-- 1. SEO 优化相关函数
+-- =====================================================================================
+
+-- 根据 cid 获取商品信息 (SEO 友好)
+CREATE OR REPLACE FUNCTION public.get_product_by_cid(p_cid INTEGER)
+RETURNS TABLE (
+    id UUID,
+    cid INTEGER,
+    name VARCHAR,
+    slug VARCHAR,
+    description TEXT,
+    main_image_url TEXT,
+    base_price DECIMAL,
+    rating_avg DECIMAL,
+    sale_count INTEGER,
+    category_name VARCHAR,
+    brand_name VARCHAR,
+    shop_name VARCHAR
+) AS $$
+BEGIN
+    RETURN QUERY
+    SELECT 
+        p.id,
+        p.cid,
+        p.name,
+        p.slug,
+        p.description,
+        p.main_image_url,
+        p.base_price,
+        p.rating_avg,
+        p.sale_count,
+        c.name as category_name,
+        b.name as brand_name,
+        s.shop_name
+    FROM public.ml_products p
+    LEFT JOIN public.ml_categories c ON p.category_id = c.id
+    LEFT JOIN public.ml_brands b ON p.brand_id = b.id
+    LEFT JOIN public.ml_shops s ON p.merchant_id = s.merchant_id
+    WHERE p.cid = p_cid AND p.status = 1;
+END;
+$$ LANGUAGE plpgsql;
+
+-- 根据 cid 获取分类信息 (SEO 友好)
+CREATE OR REPLACE FUNCTION public.get_category_by_cid(p_cid INTEGER)
+RETURNS TABLE (
+    id UUID,
+    cid INTEGER,
+    name VARCHAR,
+    slug VARCHAR,
+    description TEXT,
+    icon_url TEXT,
+    path TEXT[]
+) AS $$
+BEGIN
+    RETURN QUERY
+    SELECT 
+        c.id,
+        c.cid,
+        c.name,
+        c.slug,
+        c.description,
+        c.icon_url,
+        c.path
+    FROM public.ml_categories c
+    WHERE c.cid = p_cid AND c.is_active = TRUE;
+END;
+$$ LANGUAGE plpgsql;
+
+-- 根据 cid 获取品牌信息 (SEO 友好)
+CREATE OR REPLACE FUNCTION public.get_brand_by_cid(p_cid INTEGER)
+RETURNS TABLE (
+    id UUID,
+    cid INTEGER,
+    name VARCHAR,
+    logo_url TEXT,
+    description TEXT
+) AS $$
+BEGIN
+    RETURN QUERY
+    SELECT 
+        b.id,
+        b.cid,
+        b.name,
+        b.logo_url,
+        b.description
+    FROM public.ml_brands b
+    WHERE b.cid = p_cid AND b.is_active = TRUE;
+END;
+$$ LANGUAGE plpgsql;
+
+-- 根据 cid 获取店铺信息 (SEO 友好)
+CREATE OR REPLACE FUNCTION public.get_shop_by_cid(p_cid INTEGER)
+RETURNS TABLE (
+    id UUID,
+    cid INTEGER,
+    shop_name VARCHAR,
+    description TEXT,
+    shop_logo TEXT,
+    rating_avg DECIMAL,
+    product_count INTEGER
+) AS $$
+BEGIN
+    RETURN QUERY
+    SELECT 
+        s.id,
+        s.cid,
+        s.shop_name,
+        s.description,
+        s.shop_logo,
+        s.rating_avg,
+        s.product_count
+    FROM public.ml_shops s
+    WHERE s.cid = p_cid AND s.status = 1;
+END;
+$$ LANGUAGE plpgsql;
+
+-- 生成 SEO 友好的 URL 路径
+CREATE OR REPLACE FUNCTION public.generate_seo_url(
+    p_type VARCHAR, -- 'product', 'category', 'brand', 'shop'
+    p_cid INTEGER,
+    p_slug VARCHAR DEFAULT NULL
+)
+RETURNS TEXT AS $$
+DECLARE
+    url_path TEXT;
+BEGIN
+    CASE p_type
+        WHEN 'product' THEN
+            url_path := '/product/' || p_cid;
+            IF p_slug IS NOT NULL THEN
+                url_path := url_path || '/' || p_slug;
+            END IF;
+        WHEN 'category' THEN
+            url_path := '/category/' || p_cid;
+            IF p_slug IS NOT NULL THEN
+                url_path := url_path || '/' || p_slug;
+            END IF;
+        WHEN 'brand' THEN
+            url_path := '/brand/' || p_cid;
+            IF p_slug IS NOT NULL THEN
+                url_path := url_path || '/' || p_slug;
+            END IF;
+        WHEN 'shop' THEN
+            url_path := '/shop/' || p_cid;
+            IF p_slug IS NOT NULL THEN
+                url_path := url_path || '/' || p_slug;
+            END IF;
+        ELSE
+            url_path := '/' || p_type || '/' || p_cid;
+    END CASE;
+    
+    RETURN url_path;
+END;
+$$ LANGUAGE plpgsql;
+
+-- 批量更新 slug 字段（用于现有数据）
+CREATE OR REPLACE FUNCTION public.update_seo_slugs()
+RETURNS VOID AS $$
+BEGIN
+    -- 更新商品 slug
+    UPDATE public.ml_products 
+    SET slug = LOWER(REGEXP_REPLACE(name, '[^a-zA-Z0-9\u4e00-\u9fa5]+', '-', 'g'))
+    WHERE slug IS NULL OR slug = '';
+    
+    -- 更新分类 slug  
+    UPDATE public.ml_categories 
+    SET slug = LOWER(REGEXP_REPLACE(name, '[^a-zA-Z0-9\u4e00-\u9fa5]+', '-', 'g'))
+    WHERE slug IS NULL OR slug = '';
+    
+    RAISE NOTICE 'SEO slugs updated successfully';
+END;
+$$ LANGUAGE plpgsql;
+
+-- =====================================================================================
+-- 2. 商业逻辑函数
+-- =====================================================================================
+
+-- 计算购物车总金额
+CREATE OR REPLACE FUNCTION public.calculate_cart_total(p_user_id UUID)
+RETURNS DECIMAL AS $$
+DECLARE
+    total_amount DECIMAL := 0;
+BEGIN
+    SELECT COALESCE(SUM(
+        CASE 
+            WHEN s.id IS NOT NULL THEN s.price * c.quantity
+            ELSE p.base_price * c.quantity
+        END
+    ), 0) INTO total_amount
+    FROM public.ml_shopping_cart c
+    LEFT JOIN public.ml_product_skus s ON c.sku_id = s.id
+    LEFT JOIN public.ml_products p ON c.product_id = p.id
+    WHERE c.user_id = p_user_id 
+      AND c.selected = TRUE
+      AND p.status = 1 
+      AND (s.id IS NULL OR s.status = 1);
+    
+    RETURN total_amount;
+END;
+$$ LANGUAGE plpgsql;
+
+-- 获取商品可用库存
+CREATE OR REPLACE FUNCTION public.get_product_available_stock(p_product_id UUID, p_sku_id UUID DEFAULT NULL)
+RETURNS INTEGER AS $$
+DECLARE
+    stock_count INTEGER := 0;
+BEGIN
+    IF p_sku_id IS NOT NULL THEN
+        -- 获取特定SKU库存
+        SELECT COALESCE(stock, 0) INTO stock_count
+        FROM public.ml_product_skus
+        WHERE id = p_sku_id AND product_id = p_product_id AND status = 1;
+    ELSE
+        -- 获取商品总库存
+        SELECT COALESCE(available_stock, 0) INTO stock_count
+        FROM public.ml_products
+        WHERE id = p_product_id AND status = 1;
+    END IF;
+    
+    RETURN stock_count;
+END;
+$$ LANGUAGE plpgsql;
+
+-- 商品库存更新触发器函数
+CREATE OR REPLACE FUNCTION public.update_product_stock()
+RETURNS TRIGGER AS $$
+BEGIN
+    -- 更新商品总库存
+    IF TG_OP = 'DELETE' THEN
+        UPDATE public.ml_products 
+        SET 
+            total_stock = (
+                SELECT COALESCE(SUM(stock), 0) 
+                FROM public.ml_product_skus 
+                WHERE product_id = OLD.product_id AND status = 1
+            ),
+            available_stock = (
+                SELECT COALESCE(SUM(stock), 0) 
+                FROM public.ml_product_skus 
+                WHERE product_id = OLD.product_id AND status = 1
+            )
+        WHERE id = OLD.product_id;
+        RETURN OLD;
+    ELSE
+        UPDATE public.ml_products 
+        SET 
+            total_stock = (
+                SELECT COALESCE(SUM(stock), 0) 
+                FROM public.ml_product_skus 
+                WHERE product_id = NEW.product_id AND status = 1
+            ),
+            available_stock = (
+                SELECT COALESCE(SUM(stock), 0) 
+                FROM public.ml_product_skus 
+                WHERE product_id = NEW.product_id AND status = 1
+            )
+        WHERE id = NEW.product_id;
+        RETURN NEW;
+    END IF;
+END;
+$$ LANGUAGE plpgsql;
+
+-- 订单状态变更时的处理
+CREATE OR REPLACE FUNCTION public.handle_order_status_change()
+RETURNS TRIGGER AS $$
+BEGIN
+    -- 如果订单状态变为已付款
+    IF NEW.order_status = 2 AND (OLD.order_status IS NULL OR OLD.order_status = 1) THEN
+        NEW.paid_at = NOW();
+    END IF;
+    
+    -- 如果订单状态变为已发货
+    IF NEW.order_status = 3 AND OLD.order_status = 2 THEN
+        NEW.shipped_at = NOW();
+    END IF;
+    
+    -- 如果订单状态变为已完成
+    IF NEW.order_status = 4 AND OLD.order_status = 3 THEN
+        NEW.delivered_at = NOW();
+        NEW.completed_at = NOW();
+        
+        -- 更新商品销量
+        UPDATE public.ml_products 
+        SET sale_count = sale_count + (
+            SELECT SUM(quantity) 
+            FROM public.ml_order_items 
+            WHERE order_id = NEW.id
+        ) 
+        WHERE id IN (
+            SELECT product_id 
+            FROM public.ml_order_items 
+            WHERE order_id = NEW.id
+        );
+    END IF;
+    
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+-- 创建库存更新触发器
+DO $$
+BEGIN
+    IF NOT EXISTS (SELECT 1 FROM pg_trigger WHERE tgname = 'trigger_ml_update_product_stock') THEN
+        CREATE TRIGGER trigger_ml_update_product_stock
+            AFTER INSERT OR UPDATE OR DELETE ON public.ml_product_skus
+            FOR EACH ROW EXECUTE FUNCTION public.update_product_stock();
+    END IF;
+END $$;
+
+-- 创建订单状态变更触发器
+DO $$
+BEGIN
+    IF NOT EXISTS (SELECT 1 FROM pg_trigger WHERE tgname = 'trigger_ml_order_status_change') THEN
+        CREATE TRIGGER trigger_ml_order_status_change
+            BEFORE UPDATE ON public.ml_orders
+            FOR EACH ROW EXECUTE FUNCTION public.handle_order_status_change();
+    END IF;
+END $$;
+
+-- =====================================================================================
+-- 3. 创建详细视图
+-- =====================================================================================
+
+-- 商品详情视图
+CREATE OR REPLACE VIEW public.ml_products_detail_view AS
+SELECT 
+    p.*,
+    c.cid as category_cid,
+    c.name as category_name,
+    c.path as category_path,
+    b.cid as brand_cid,
+    b.name as brand_name,
+    s.cid as shop_cid,
+    s.shop_name,
+    u.username as merchant_name,
+    CASE 
+        WHEN p.status = 1 THEN '上架'
+        WHEN p.status = 2 THEN '下架'
+        WHEN p.status = 3 THEN '草稿'
+        WHEN p.status = 4 THEN '删除'
+        ELSE '未知'
+    END as status_name
+FROM public.ml_products p
+LEFT JOIN public.ml_categories c ON p.category_id = c.id
+LEFT JOIN public.ml_brands b ON p.brand_id = b.id
+LEFT JOIN public.ml_shops s ON p.merchant_id = s.merchant_id
+LEFT JOIN public.ak_users u ON p.merchant_id = u.id;
+
+COMMENT ON VIEW public.ml_products_detail_view IS '商品详情视图';
+
+-- 订单详情视图
+CREATE OR REPLACE VIEW public.ml_orders_detail_view AS
+SELECT 
+    o.*,
+    u.username as customer_name,
+    u.phone as customer_phone,
+    m.username as merchant_name,
+    s.shop_name,
+    CASE 
+        WHEN o.order_status = 1 THEN '待付款'
+        WHEN o.order_status = 2 THEN '待发货'
+        WHEN o.order_status = 3 THEN '待收货'
+        WHEN o.order_status = 4 THEN '已完成'
+        WHEN o.order_status = 5 THEN '已取消'
+        WHEN o.order_status = 6 THEN '退款中'
+        WHEN o.order_status = 7 THEN '已退款'
+        ELSE '未知'
+    END as order_status_name,
+    CASE 
+        WHEN o.payment_status = 1 THEN '未付款'
+        WHEN o.payment_status = 2 THEN '已付款'
+        WHEN o.payment_status = 3 THEN '部分退款'
+        WHEN o.payment_status = 4 THEN '全额退款'
+        ELSE '未知'
+    END as payment_status_name
+FROM public.ml_orders o
+LEFT JOIN public.ak_users u ON o.user_id = u.id
+LEFT JOIN public.ak_users m ON o.merchant_id = m.id
+LEFT JOIN public.ml_shops s ON o.merchant_id = s.merchant_id;
+
+COMMENT ON VIEW public.ml_orders_detail_view IS '订单详情视图';
+
+-- =====================================================================================
+-- 4. RLS (Row Level Security) 策略
+-- =====================================================================================
+
+-- 启用 RLS
+ALTER TABLE public.ml_user_profiles ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.ml_user_addresses ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.ml_shopping_cart ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.ml_user_favorites ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.ml_browse_history ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.ml_user_coupons ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.ml_orders ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.ml_products ENABLE ROW LEVEL SECURITY;
+
+-- 用户档案策略：用户只能访问自己的数据
+DO $$
+BEGIN
+    -- 删除可能存在的策略
+    DROP POLICY IF EXISTS ml_user_profiles_select_policy ON public.ml_user_profiles;
+    DROP POLICY IF EXISTS ml_user_profiles_insert_policy ON public.ml_user_profiles;
+    DROP POLICY IF EXISTS ml_user_profiles_update_policy ON public.ml_user_profiles;
+    DROP POLICY IF EXISTS ml_user_profiles_delete_policy ON public.ml_user_profiles;
+    
+    -- 创建新策略
+    CREATE POLICY ml_user_profiles_select_policy ON public.ml_user_profiles
+        FOR SELECT USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_profiles_insert_policy ON public.ml_user_profiles
+        FOR INSERT WITH CHECK (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_profiles_update_policy ON public.ml_user_profiles
+        FOR UPDATE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_profiles_delete_policy ON public.ml_user_profiles
+        FOR DELETE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+END $$;
+
+-- 用户地址策略
+DO $$
+BEGIN
+    DROP POLICY IF EXISTS ml_user_addresses_select_policy ON public.ml_user_addresses;
+    DROP POLICY IF EXISTS ml_user_addresses_insert_policy ON public.ml_user_addresses;
+    DROP POLICY IF EXISTS ml_user_addresses_update_policy ON public.ml_user_addresses;
+    DROP POLICY IF EXISTS ml_user_addresses_delete_policy ON public.ml_user_addresses;
+    
+    CREATE POLICY ml_user_addresses_select_policy ON public.ml_user_addresses
+        FOR SELECT USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_addresses_insert_policy ON public.ml_user_addresses
+        FOR INSERT WITH CHECK (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_addresses_update_policy ON public.ml_user_addresses
+        FOR UPDATE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_addresses_delete_policy ON public.ml_user_addresses
+        FOR DELETE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+END $$;
+
+-- 购物车策略
+DO $$
+BEGIN
+    DROP POLICY IF EXISTS ml_shopping_cart_select_policy ON public.ml_shopping_cart;
+    DROP POLICY IF EXISTS ml_shopping_cart_insert_policy ON public.ml_shopping_cart;
+    DROP POLICY IF EXISTS ml_shopping_cart_update_policy ON public.ml_shopping_cart;
+    DROP POLICY IF EXISTS ml_shopping_cart_delete_policy ON public.ml_shopping_cart;
+    
+    CREATE POLICY ml_shopping_cart_select_policy ON public.ml_shopping_cart
+        FOR SELECT USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_shopping_cart_insert_policy ON public.ml_shopping_cart
+        FOR INSERT WITH CHECK (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_shopping_cart_update_policy ON public.ml_shopping_cart
+        FOR UPDATE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_shopping_cart_delete_policy ON public.ml_shopping_cart
+        FOR DELETE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+END $$;
+
+-- 订单策略：用户可以查看自己的订单，商家可以查看自己店铺的订单
+DO $$
+BEGIN
+    DROP POLICY IF EXISTS ml_orders_select_policy ON public.ml_orders;
+    DROP POLICY IF EXISTS ml_orders_insert_policy ON public.ml_orders;
+    DROP POLICY IF EXISTS ml_orders_update_policy ON public.ml_orders;
+    DROP POLICY IF EXISTS ml_orders_delete_policy ON public.ml_orders;
+    
+    CREATE POLICY ml_orders_select_policy ON public.ml_orders
+        FOR SELECT USING (
+            auth.uid() IN (
+                SELECT auth_id FROM public.ak_users WHERE id IN (user_id, merchant_id)
+            )
+        );
+
+    CREATE POLICY ml_orders_insert_policy ON public.ml_orders
+        FOR INSERT WITH CHECK (
+            auth.uid() IN (
+                SELECT auth_id FROM public.ak_users WHERE id IN (user_id, merchant_id)
+            )
+        );
+
+    CREATE POLICY ml_orders_update_policy ON public.ml_orders
+        FOR UPDATE USING (
+            auth.uid() IN (
+                SELECT auth_id FROM public.ak_users WHERE id IN (user_id, merchant_id)
+            )
+        );
+
+    CREATE POLICY ml_orders_delete_policy ON public.ml_orders
+        FOR DELETE USING (
+            auth.uid() IN (
+                SELECT auth_id FROM public.ak_users WHERE id IN (user_id, merchant_id)
+            )
+        );
+END $$;
+
+-- 商品策略：所有人可以查看上架商品，商家只能管理自己的商品
+DO $$
+BEGIN
+    DROP POLICY IF EXISTS ml_products_select_policy ON public.ml_products;
+    DROP POLICY IF EXISTS ml_products_insert_policy ON public.ml_products;
+    DROP POLICY IF EXISTS ml_products_update_policy ON public.ml_products;
+    DROP POLICY IF EXISTS ml_products_delete_policy ON public.ml_products;
+    
+    CREATE POLICY ml_products_select_policy ON public.ml_products
+        FOR SELECT USING (status = 1);
+
+    CREATE POLICY ml_products_insert_policy ON public.ml_products
+        FOR INSERT WITH CHECK (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = merchant_id)
+        );
+
+    CREATE POLICY ml_products_update_policy ON public.ml_products
+        FOR UPDATE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = merchant_id)
+        );
+
+    CREATE POLICY ml_products_delete_policy ON public.ml_products
+        FOR DELETE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = merchant_id)
+        );
+END $$;
+
+-- 收藏策略
+DO $$
+BEGIN
+    DROP POLICY IF EXISTS ml_user_favorites_select_policy ON public.ml_user_favorites;
+    DROP POLICY IF EXISTS ml_user_favorites_insert_policy ON public.ml_user_favorites;
+    DROP POLICY IF EXISTS ml_user_favorites_update_policy ON public.ml_user_favorites;
+    DROP POLICY IF EXISTS ml_user_favorites_delete_policy ON public.ml_user_favorites;
+    
+    CREATE POLICY ml_user_favorites_select_policy ON public.ml_user_favorites
+        FOR SELECT USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_favorites_insert_policy ON public.ml_user_favorites
+        FOR INSERT WITH CHECK (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_favorites_update_policy ON public.ml_user_favorites
+        FOR UPDATE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_favorites_delete_policy ON public.ml_user_favorites
+        FOR DELETE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+END $$;
+
+-- 浏览历史策略
+DO $$
+BEGIN
+    DROP POLICY IF EXISTS ml_browse_history_select_policy ON public.ml_browse_history;
+    DROP POLICY IF EXISTS ml_browse_history_insert_policy ON public.ml_browse_history;
+    DROP POLICY IF EXISTS ml_browse_history_update_policy ON public.ml_browse_history;
+    DROP POLICY IF EXISTS ml_browse_history_delete_policy ON public.ml_browse_history;
+    
+    CREATE POLICY ml_browse_history_select_policy ON public.ml_browse_history
+        FOR SELECT USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_browse_history_insert_policy ON public.ml_browse_history
+        FOR INSERT WITH CHECK (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_browse_history_update_policy ON public.ml_browse_history
+        FOR UPDATE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_browse_history_delete_policy ON public.ml_browse_history
+        FOR DELETE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+END $$;
+
+-- 优惠券策略
+DO $$
+BEGIN
+    DROP POLICY IF EXISTS ml_user_coupons_select_policy ON public.ml_user_coupons;
+    DROP POLICY IF EXISTS ml_user_coupons_insert_policy ON public.ml_user_coupons;
+    DROP POLICY IF EXISTS ml_user_coupons_update_policy ON public.ml_user_coupons;
+    DROP POLICY IF EXISTS ml_user_coupons_delete_policy ON public.ml_user_coupons;
+    
+    CREATE POLICY ml_user_coupons_select_policy ON public.ml_user_coupons
+        FOR SELECT USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_coupons_insert_policy ON public.ml_user_coupons
+        FOR INSERT WITH CHECK (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_coupons_update_policy ON public.ml_user_coupons
+        FOR UPDATE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+
+    CREATE POLICY ml_user_coupons_delete_policy ON public.ml_user_coupons
+        FOR DELETE USING (
+            auth.uid() = (SELECT auth_id FROM public.ak_users WHERE id = user_id)
+        );
+END $$;
+
+-- =====================================================================================
+-- 5. 完成提示
+-- =====================================================================================
+
+DO $$
+BEGIN
+    RAISE NOTICE '=======================================================';
+    RAISE NOTICE 'SEO 优化和安全策略配置完成！';
+    RAISE NOTICE '=======================================================';
+    RAISE NOTICE '已创建 SEO 函数: 6 个';
+    RAISE NOTICE '已创建业务函数: 4 个';
+    RAISE NOTICE '已创建详细视图: 2 个';
+    RAISE NOTICE '已配置 RLS 策略: 8 个表';
+    RAISE NOTICE '已创建库存和订单触发器';
+    RAISE NOTICE '=======================================================';
+    RAISE NOTICE '功能说明:';
+    RAISE NOTICE '- SEO 友好的 URL 生成';
+    RAISE NOTICE '- CID 基础的数据查询';
+    RAISE NOTICE '- 自动库存管理';
+    RAISE NOTICE '- 订单状态自动更新';
+    RAISE NOTICE '- 用户数据安全隔离';
+    RAISE NOTICE '=======================================================';
+END $$;

mall_sql/schemas/product_database.sql

@@ -0,0 +1,452 @@
+-- ===================================================================
+-- 电商商城商品管理数据库设计
+-- 基于PostgreSQL，兼容现有ak_contents资讯系统
+-- ===================================================================
+
+-- ===================================================================
+-- 1. 商品核心表
+-- ===================================================================
+
+-- 商品基础信息表
+CREATE TABLE IF NOT EXISTS public.mall_products (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    product_code VARCHAR(50) UNIQUE NOT NULL,           -- 商品编码
+    name VARCHAR(500) NOT NULL,                         -- 商品名称
+    subtitle VARCHAR(1000),                             -- 副标题/卖点
+    description TEXT,                                   -- 商品描述
+    
+    -- 商家信息
+    merchant_id UUID NOT NULL REFERENCES public.ak_users(id),
+    brand_id UUID REFERENCES public.mall_brands(id),
+    
+    -- 分类信息
+    category_id UUID NOT NULL REFERENCES public.mall_categories(id),
+    category_path TEXT[],                               -- 分类路径，便于查询
+    
+    -- 基础属性
+    weight DECIMAL(10,3),                               -- 重量(kg)
+    dimensions JSONB,                                   -- 尺寸信息 {长,宽,高}
+    
+    -- 价格信息
+    base_price DECIMAL(12,2) NOT NULL,                  -- 基础价格
+    market_price DECIMAL(12,2),                         -- 市场价
+    cost_price DECIMAL(12,2),                           -- 成本价
+    
+    -- 库存信息  
+    stock_quantity INTEGER DEFAULT 0,                   -- 总库存
+    available_quantity INTEGER DEFAULT 0,               -- 可用库存
+    reserved_quantity INTEGER DEFAULT 0,                -- 预留库存
+    min_order_quantity INTEGER DEFAULT 1,               -- 最小起订量
+    max_order_quantity INTEGER,                         -- 最大限购量
+    
+    -- 状态信息
+    status VARCHAR(20) DEFAULT 'draft',                 -- 状态：draft/active/inactive/deleted
+    is_featured BOOLEAN DEFAULT false,                  -- 是否精选
+    is_new BOOLEAN DEFAULT false,                       -- 是否新品
+    is_hot BOOLEAN DEFAULT false,                       -- 是否热卖
+    is_on_sale BOOLEAN DEFAULT false,                   -- 是否促销
+    
+    -- 多媒体
+    main_image_url TEXT,                                -- 主图
+    image_urls TEXT[],                                  -- 图片URL数组
+    video_urls TEXT[],                                  -- 视频URL数组
+    
+    -- SEO相关
+    seo_title VARCHAR(200),                             -- SEO标题
+    seo_description VARCHAR(500),                       -- SEO描述
+    seo_keywords TEXT[],                                -- SEO关键词
+    slug VARCHAR(200) UNIQUE,                           -- URL友好标识
+    
+    -- 销售统计
+    view_count INTEGER DEFAULT 0,                       -- 浏览次数
+    sale_count INTEGER DEFAULT 0,                       -- 销售数量
+    favorite_count INTEGER DEFAULT 0,                   -- 收藏次数
+    rating_average DECIMAL(3,2) DEFAULT 0,              -- 平均评分
+    rating_count INTEGER DEFAULT 0,                     -- 评分次数
+    
+    -- 时间信息
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    published_at TIMESTAMP WITH TIME ZONE,              -- 上架时间
+    sale_start_at TIMESTAMP WITH TIME ZONE,             -- 开售时间
+    sale_end_at TIMESTAMP WITH TIME ZONE,               -- 停售时间
+    
+    -- 额外信息
+    tags TEXT[],                                        -- 标签
+    attributes JSONB DEFAULT '{}',                      -- 自定义属性
+    notes TEXT,                                         -- 内部备注
+    
+    -- 约束
+    CONSTRAINT chk_price_positive CHECK (base_price >= 0),
+    CONSTRAINT chk_stock_non_negative CHECK (stock_quantity >= 0),
+    CONSTRAINT chk_available_stock CHECK (available_quantity >= 0),
+    CONSTRAINT chk_reserved_stock CHECK (reserved_quantity >= 0),
+    CONSTRAINT chk_rating_range CHECK (rating_average >= 0 AND rating_average <= 5)
+);
+
+-- 商品表索引
+CREATE INDEX IF NOT EXISTS idx_mall_products_merchant ON public.mall_products(merchant_id, status);
+CREATE INDEX IF NOT EXISTS idx_mall_products_category ON public.mall_products(category_id, status);
+CREATE INDEX IF NOT EXISTS idx_mall_products_status ON public.mall_products(status, published_at DESC);
+CREATE INDEX IF NOT EXISTS idx_mall_products_featured ON public.mall_products(is_featured, published_at DESC);
+CREATE INDEX IF NOT EXISTS idx_mall_products_price ON public.mall_products(base_price, status);
+CREATE INDEX IF NOT EXISTS idx_mall_products_sale_count ON public.mall_products(sale_count DESC);
+CREATE INDEX IF NOT EXISTS idx_mall_products_rating ON public.mall_products(rating_average DESC, rating_count DESC);
+CREATE INDEX IF NOT EXISTS idx_mall_products_code ON public.mall_products(product_code);
+CREATE INDEX IF NOT EXISTS idx_mall_products_slug ON public.mall_products(slug);
+CREATE INDEX IF NOT EXISTS idx_mall_products_tags ON public.mall_products USING GIN(tags);
+CREATE INDEX IF NOT EXISTS idx_mall_products_category_path ON public.mall_products USING GIN(category_path);
+
+COMMENT ON TABLE public.mall_products IS '商品基础信息表';
+
+-- ===================================================================
+-- 2. 商品SKU表
+-- ===================================================================
+
+-- 商品SKU表
+CREATE TABLE IF NOT EXISTS public.mall_product_skus (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    product_id UUID NOT NULL REFERENCES public.mall_products(id) ON DELETE CASCADE,
+    sku_code VARCHAR(100) UNIQUE NOT NULL,              -- SKU编码
+    
+    -- 规格信息
+    specification_values JSONB NOT NULL DEFAULT '{}',   -- 规格值 {"颜色":"红色","尺寸":"L"}
+    specification_text VARCHAR(500),                    -- 规格描述文本
+    
+    -- 价格库存
+    price DECIMAL(12,2) NOT NULL,                       -- SKU价格
+    cost_price DECIMAL(12,2),                           -- SKU成本价
+    stock_quantity INTEGER DEFAULT 0,                   -- SKU库存
+    available_quantity INTEGER DEFAULT 0,               -- SKU可用库存
+    reserved_quantity INTEGER DEFAULT 0,                -- SKU预留库存
+    
+    -- SKU属性
+    weight DECIMAL(10,3),                               -- SKU重量
+    barcode VARCHAR(50),                                -- 条形码
+    image_url TEXT,                                     -- SKU图片
+    
+    -- 状态
+    is_active BOOLEAN DEFAULT true,                     -- 是否启用
+    is_default BOOLEAN DEFAULT false,                   -- 是否默认SKU
+    
+    -- 销售统计
+    sale_count INTEGER DEFAULT 0,                       -- 销售数量
+    
+    -- 时间
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    
+    -- 约束
+    CONSTRAINT chk_sku_price_positive CHECK (price >= 0),
+    CONSTRAINT chk_sku_stock_non_negative CHECK (stock_quantity >= 0)
+);
+
+-- SKU表索引
+CREATE INDEX IF NOT EXISTS idx_mall_product_skus_product ON public.mall_product_skus(product_id, is_active);
+CREATE INDEX IF NOT EXISTS idx_mall_product_skus_code ON public.mall_product_skus(sku_code);
+CREATE INDEX IF NOT EXISTS idx_mall_product_skus_barcode ON public.mall_product_skus(barcode);
+CREATE INDEX IF NOT EXISTS idx_mall_product_skus_default ON public.mall_product_skus(product_id, is_default);
+CREATE INDEX IF NOT EXISTS idx_mall_product_skus_spec ON public.mall_product_skus USING GIN(specification_values);
+
+COMMENT ON TABLE public.mall_product_skus IS '商品SKU表';
+
+-- ===================================================================
+-- 3. 商品分类表
+-- ===================================================================
+
+-- 商品分类表
+CREATE TABLE IF NOT EXISTS public.mall_categories (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    name VARCHAR(200) NOT NULL,                         -- 分类名称
+    slug VARCHAR(200) UNIQUE,                           -- URL友好标识
+    description TEXT,                                   -- 分类描述
+    
+    -- 层级关系
+    parent_id UUID REFERENCES public.mall_categories(id),
+    level INTEGER DEFAULT 0,                            -- 层级：0=顶级
+    path TEXT,                                          -- 路径：/1/2/3
+    sort_order INTEGER DEFAULT 0,                       -- 排序
+    
+    -- 显示信息
+    icon_url TEXT,                                      -- 分类图标
+    banner_url TEXT,                                    -- 分类横幅
+    
+    -- 状态
+    is_active BOOLEAN DEFAULT true,                     -- 是否启用
+    is_featured BOOLEAN DEFAULT false,                  -- 是否精选
+    
+    -- 统计
+    product_count INTEGER DEFAULT 0,                    -- 商品数量
+    
+    -- SEO
+    seo_title VARCHAR(200),
+    seo_description VARCHAR(500),
+    seo_keywords TEXT[],
+    
+    -- 时间
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    
+    -- 自定义属性
+    attributes JSONB DEFAULT '{}'
+);
+
+-- 分类表索引
+CREATE INDEX IF NOT EXISTS idx_mall_categories_parent ON public.mall_categories(parent_id, sort_order);
+CREATE INDEX IF NOT EXISTS idx_mall_categories_level ON public.mall_categories(level, sort_order);
+CREATE INDEX IF NOT EXISTS idx_mall_categories_active ON public.mall_categories(is_active, sort_order);
+CREATE INDEX IF NOT EXISTS idx_mall_categories_featured ON public.mall_categories(is_featured, sort_order);
+CREATE INDEX IF NOT EXISTS idx_mall_categories_slug ON public.mall_categories(slug);
+
+COMMENT ON TABLE public.mall_categories IS '商品分类表';
+
+-- ===================================================================
+-- 4. 商品品牌表
+-- ===================================================================
+
+-- 商品品牌表
+CREATE TABLE IF NOT EXISTS public.mall_brands (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    name VARCHAR(200) NOT NULL UNIQUE,                  -- 品牌名称
+    english_name VARCHAR(200),                          -- 英文名称
+    slug VARCHAR(200) UNIQUE,                           -- URL友好标识
+    description TEXT,                                   -- 品牌描述
+    
+    -- 品牌信息
+    logo_url TEXT,                                      -- 品牌Logo
+    banner_url TEXT,                                    -- 品牌横幅
+    website_url TEXT,                                   -- 官网地址
+    origin_country VARCHAR(100),                        -- 品牌原产国
+    founded_year INTEGER,                               -- 创立年份
+    
+    -- 状态
+    is_active BOOLEAN DEFAULT true,                     -- 是否启用
+    is_featured BOOLEAN DEFAULT false,                  -- 是否精选
+    
+    -- 统计
+    product_count INTEGER DEFAULT 0,                    -- 商品数量
+    
+    -- SEO
+    seo_title VARCHAR(200),
+    seo_description VARCHAR(500),
+    seo_keywords TEXT[],
+    
+    -- 时间
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    
+    -- 排序
+    sort_order INTEGER DEFAULT 0
+);
+
+-- 品牌表索引
+CREATE INDEX IF NOT EXISTS idx_mall_brands_active ON public.mall_brands(is_active, sort_order);
+CREATE INDEX IF NOT EXISTS idx_mall_brands_featured ON public.mall_brands(is_featured, sort_order);
+CREATE INDEX IF NOT EXISTS idx_mall_brands_slug ON public.mall_brands(slug);
+
+COMMENT ON TABLE public.mall_brands IS '商品品牌表';
+
+-- ===================================================================
+-- 5. 商品规格相关表
+-- ===================================================================
+
+-- 规格名表（如：颜色、尺寸、款式等）
+CREATE TABLE IF NOT EXISTS public.mall_specifications (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    name VARCHAR(100) NOT NULL,                         -- 规格名称：颜色、尺寸等
+    slug VARCHAR(100) UNIQUE,                           -- URL友好标识
+    type VARCHAR(50) DEFAULT 'select',                  -- 类型：select/input/color/image
+    sort_order INTEGER DEFAULT 0,                       -- 排序
+    is_required BOOLEAN DEFAULT false,                  -- 是否必选
+    is_active BOOLEAN DEFAULT true,                     -- 是否启用
+    
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- 规格值表（如：红色、蓝色、L、XL等）
+CREATE TABLE IF NOT EXISTS public.mall_specification_values (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    specification_id UUID NOT NULL REFERENCES public.mall_specifications(id) ON DELETE CASCADE,
+    value VARCHAR(200) NOT NULL,                        -- 规格值：红色、L等
+    color_code VARCHAR(20),                             -- 颜色代码（仅颜色规格）
+    image_url TEXT,                                     -- 规格值图片
+    sort_order INTEGER DEFAULT 0,                       -- 排序
+    is_active BOOLEAN DEFAULT true,                     -- 是否启用
+    
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    
+    UNIQUE(specification_id, value)
+);
+
+-- 商品规格关联表
+CREATE TABLE IF NOT EXISTS public.mall_product_specifications (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    product_id UUID NOT NULL REFERENCES public.mall_products(id) ON DELETE CASCADE,
+    specification_id UUID NOT NULL REFERENCES public.mall_specifications(id) ON DELETE CASCADE,
+    is_required BOOLEAN DEFAULT false,                  -- 该商品的该规格是否必选
+    sort_order INTEGER DEFAULT 0,                       -- 在该商品中的排序
+    
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    
+    UNIQUE(product_id, specification_id)
+);
+
+-- 索引
+CREATE INDEX IF NOT EXISTS idx_mall_specifications_active ON public.mall_specifications(is_active, sort_order);
+CREATE INDEX IF NOT EXISTS idx_mall_specification_values_spec ON public.mall_specification_values(specification_id, is_active, sort_order);
+CREATE INDEX IF NOT EXISTS idx_mall_product_specifications_product ON public.mall_product_specifications(product_id, sort_order);
+
+-- ===================================================================
+-- 6. 商品详情相关表
+-- ===================================================================
+
+-- 商品详情内容表（富文本、图文混排）
+CREATE TABLE IF NOT EXISTS public.mall_product_details (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    product_id UUID NOT NULL REFERENCES public.mall_products(id) ON DELETE CASCADE,
+    
+    -- 详情内容
+    detail_type VARCHAR(50) DEFAULT 'rich_text',        -- 类型：rich_text/markdown/html
+    content TEXT,                                       -- 详情内容
+    images TEXT[],                                      -- 详情图片
+    
+    -- 显示控制
+    section_title VARCHAR(200),                         -- 区块标题
+    sort_order INTEGER DEFAULT 0,                       -- 排序
+    is_active BOOLEAN DEFAULT true,                     -- 是否显示
+    
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- 商品参数表
+CREATE TABLE IF NOT EXISTS public.mall_product_attributes (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    product_id UUID NOT NULL REFERENCES public.mall_products(id) ON DELETE CASCADE,
+    
+    -- 参数信息
+    attribute_name VARCHAR(200) NOT NULL,               -- 参数名称
+    attribute_value TEXT NOT NULL,                      -- 参数值
+    attribute_group VARCHAR(100),                       -- 参数分组
+    
+    -- 显示控制
+    sort_order INTEGER DEFAULT 0,                       -- 排序
+    is_key_attribute BOOLEAN DEFAULT false,             -- 是否关键参数
+    
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    
+    UNIQUE(product_id, attribute_name)
+);
+
+-- 索引
+CREATE INDEX IF NOT EXISTS idx_mall_product_details_product ON public.mall_product_details(product_id, sort_order);
+CREATE INDEX IF NOT EXISTS idx_mall_product_attributes_product ON public.mall_product_attributes(product_id, attribute_group, sort_order);
+
+-- ===================================================================
+-- 7. 视图和函数
+-- ===================================================================
+
+-- 商品列表视图（包含完整信息）
+CREATE OR REPLACE VIEW public.vw_mall_products_full AS
+SELECT 
+    p.*,
+    c.name as category_name,
+    c.path as category_full_path,
+    b.name as brand_name,
+    b.logo_url as brand_logo_url,
+    
+    -- SKU汇总信息
+    (SELECT MIN(price) FROM public.mall_product_skus WHERE product_id = p.id AND is_active = true) as min_price,
+    (SELECT MAX(price) FROM public.mall_product_skus WHERE product_id = p.id AND is_active = true) as max_price,
+    (SELECT SUM(stock_quantity) FROM public.mall_product_skus WHERE product_id = p.id AND is_active = true) as total_stock,
+    
+    -- 默认SKU信息
+    default_sku.id as default_sku_id,
+    default_sku.sku_code as default_sku_code,
+    default_sku.price as default_price,
+    default_sku.stock_quantity as default_stock
+    
+FROM public.mall_products p
+LEFT JOIN public.mall_categories c ON p.category_id = c.id
+LEFT JOIN public.mall_brands b ON p.brand_id = b.id
+LEFT JOIN public.mall_product_skus default_sku ON p.id = default_sku.product_id AND default_sku.is_default = true
+WHERE p.status != 'deleted';
+
+COMMENT ON VIEW public.vw_mall_products_full IS '商品完整信息视图';
+
+-- ===================================================================
+-- 8. 触发器（维护统计数据）
+-- ===================================================================
+
+-- 更新商品SKU统计的触发器函数
+CREATE OR REPLACE FUNCTION public.update_product_sku_stats()
+RETURNS TRIGGER AS $$
+BEGIN
+    -- 更新商品的库存统计
+    UPDATE public.mall_products 
+    SET 
+        stock_quantity = (
+            SELECT COALESCE(SUM(stock_quantity), 0) 
+            FROM public.mall_product_skus 
+            WHERE product_id = COALESCE(NEW.product_id, OLD.product_id) AND is_active = true
+        ),
+        available_quantity = (
+            SELECT COALESCE(SUM(available_quantity), 0) 
+            FROM public.mall_product_skus 
+            WHERE product_id = COALESCE(NEW.product_id, OLD.product_id) AND is_active = true
+        ),
+        updated_at = NOW()
+    WHERE id = COALESCE(NEW.product_id, OLD.product_id);
+    
+    RETURN COALESCE(NEW, OLD);
+END;
+$$ LANGUAGE plpgsql;
+
+-- 创建触发器
+DO $$
+BEGIN
+    DROP TRIGGER IF EXISTS trigger_update_product_sku_stats ON public.mall_product_skus;
+    CREATE TRIGGER trigger_update_product_sku_stats
+        AFTER INSERT OR UPDATE OR DELETE ON public.mall_product_skus
+        FOR EACH ROW EXECUTE FUNCTION public.update_product_sku_stats();
+END
+$$;
+
+-- ===================================================================
+-- 9. 初始化数据
+-- ===================================================================
+
+-- 插入基础商品分类
+INSERT INTO public.mall_categories (name, slug, level, sort_order) VALUES
+('服装鞋包', 'fashion', 0, 1),
+('数码家电', 'electronics', 0, 2),
+('食品生鲜', 'food', 0, 3),
+('家居日用', 'home', 0, 4),
+('美妆护肤', 'beauty', 0, 5),
+('运动户外', 'sports', 0, 6),
+('图书文娱', 'books', 0, 7),
+('医药保健', 'health', 0, 8)
+ON CONFLICT (slug) DO NOTHING;
+
+-- 插入基础规格
+INSERT INTO public.mall_specifications (name, slug, type, sort_order) VALUES
+('颜色', 'color', 'color', 1),
+('尺寸', 'size', 'select', 2),
+('款式', 'style', 'select', 3),
+('容量', 'capacity', 'select', 4),
+('材质', 'material', 'select', 5)
+ON CONFLICT (slug) DO NOTHING;
+
+-- 输出完成信息
+DO $$
+BEGIN
+    RAISE NOTICE '商品管理数据库结构创建完成！';
+    RAISE NOTICE '已创建以下核心表：';
+    RAISE NOTICE '- mall_products: 商品基础信息';
+    RAISE NOTICE '- mall_product_skus: 商品SKU';
+    RAISE NOTICE '- mall_categories: 商品分类';
+    RAISE NOTICE '- mall_brands: 商品品牌';
+    RAISE NOTICE '- mall_specifications: 商品规格';
+    RAISE NOTICE '可以开始添加商品数据了！';
+END
+$$;