case when project_name is null then nft_address else project_name end as projz

from ethereum.core.ez_nft_sales

where date(block_timestamp) >= current_date - 31

and price_usd > 0),

rank as (select platform_name, projz,

sum(price_usd) as vol_usd,

ROW_NUMBER() OVER (PARTITION BY platform_name ORDER BY vol_usd desc) as rank

from raw

group by 1,2)

select platform_name, projz as project_name, rank, vol_usd

from rank

where rank <= 5