select

count (distinct from_address) addresses

,'Ethereum' as Chain

from ethereum.core.fact_transactions

group by 2

union all

select

count (distinct from_address) addresses

, 'Optimism' as Chain

from optimism.core.fact_transactions

group by 2

union all

select

count (distinct tx_from) addresses

,'Axelar' as Chain

from axelar.core.fact_transactions

group by 2