select buyer_address as buyer,
count (distinct tx_hash) as sales,
count (distinct tokenid) as NFTs,
sum (price_usd) as USD_Volume
from ethereum.core.ez_nft_sales
where nft_address = '0x629a673a8242c2ac4b7b8c5d8735fbeac21a6205'
and price_usd > 0
group by 1order by 3 DESC
limit 10