with flow as (SELECT count(DISTINCT buyer)as flow_nft_buyers from flow.core.fact_nft_sales),
sol as (SELECT count(DISTINCT purchaser)as sol_nft_buyers from solana.core.fact_nft_sales),
ETH as (SELECT count(DISTINCT buyer_address)as eth_nft_buyers from ethereum.core.ez_nft_sales)
select * from flow,sol,eth