Updated 2022-10-15
    with tab1 as (select 'Arbitrum' as type, block_timestamp::date as date,
    count (distinct tx_hash) as number_of_transactions,
    count (distinct origin_from_address) as number_of_swappers,
    number_of_transactions/number_of_swappers as avg_txn_per_swapper,
    sum (amount_in_usd) as swap_amount,
    swap_amount/number_of_swappers as amount_swapped_per_user
    from arbitrum.sushi.ez_swaps group by 1,2),
    tab2 as (select 'Optimism' as type,block_timestamp::date as date,
    count (distinct tx_hash) as number_of_transactions,
    count (distinct origin_from_address) as number_of_swappers,
    number_of_transactions/number_of_swappers as avg_txn_per_swapper,
    sum (amount_in_usd) as swap_amount,
    swap_amount/number_of_swappers as amount_swapped_per_user
    from optimism.sushi.ez_swaps group by 1,2),
    tab3 as (select 'Polygon' as type, block_timestamp::date as date,
    count (distinct tx_hash) as number_of_transactions,
    count (distinct origin_from_address) as number_of_swappers,
    number_of_transactions/number_of_swappers as avg_txn_per_swapper,
    sum (amount_in_usd) as swap_amount,
    swap_amount/number_of_swappers as amount_swapped_per_user
    from polygon.sushi.ez_swaps group by 1,2)
    select * from tab1 union ALL
    select * from tab2 union ALL
    select * from tab3
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