题解 | 商品价格排名

with
    t1 as (
        select
            *,
            dense_rank() over (
                partition by
                    type
                order by
                    price desc
            ) as rk
        from
            product_info
    )
select
    product_id,
    product_name,
    type,
    price
from
    t1
where
    rk <= 2
order by
    price desc,
    product_name asc
limit
    3