可以将所有商品分为质数和非质数两类，并计算每种商品的占地面积。然后，将仓库的总面积作为限制条件，使用混合整数规划（MIP）来最大化仓库容量。以下是代码示例：

-- 计算每种商品的占地面积
SELECT
  item_id,
  CASE WHEN is_prime = 1 THEN prime_area ELSE nonprime_area END AS area
FROM
  items

-- 使用MIP最大化仓库容量
WITH item_areas AS (
  SELECT
    item_id,
    CASE WHEN is_prime = 1 THEN prime_area ELSE nonprime_area END AS area
  FROM
    items
),
problem AS (
  SELECT
    item_id,
    area,
    CAST(total_area / area AS INT) AS max_qty -- 计算每种商品最大可存放数量
  FROM
    item_areas,
    (SELECT SUM(area) AS total_area FROM item_areas) -- 计算仓库总面积
),
vars AS (
  SELECT item_id, INTEGER DIVISIONS FROM INTEGER DIVISIONS(0, max_qty) -- 创建一个整数变量，其值为0到最大数量
  FROM problem
),
-- 最大化存储总量
SELECT MAX(SUM(qty)) AS max_storage
FROM (
  SELECT
    item_id,
    qty * area AS used_area,
    qty AS qty
  FROM
    problem,
    vars
  WHERE item_id = vars.item_id AND qty <= max_qty
) inventory
WHERE SUM(used_area) <= total_area;