The merchandising team wants to identify products suitable for a premium-only range.
The products table contains the catalog, order_items records product purchases, orders identifies the customer for each purchase, and customers records customer segments.
A product qualifies only if it has been ordered at least once and every recorded order line for it belongs to a registered customer whose segment is premium.
A guest order, an order linked to an unregistered customer, or an order from a customer whose segment is missing does not count as a premium purchase. Any such line disqualifies the product. Products that have never been ordered should not appear.
Ordering: Sort by product_id in ascending order.