select ORIGIN_FROM_ADDRESS

,case

when BLOCK_TIMESTAMP>='2023-02-16' and BLOCK_TIMESTAMP<='2023-02-22' then 'ONE WEEK BEFORE COINBASE ANNOUNCE'

when BLOCK_TIMESTAMP>='2023-02-23' and BLOCK_TIMESTAMP<='2023-03-01' then 'ONE WEEK AFTER COINBASE ANNOUNCE' end as time_period

,sum(AMOUNT_OUT_USD) as swap_volume

--,count(distinct ORIGIN_FROM_ADDRESS) as swappers

,count(distinct TX_HASH) as swap_count

from optimism.core.ez_dex_swaps

where BLOCK_TIMESTAMP>='2023-02-16'

and time_period is not null

group by 1,2)

select time_period

,avg(swap_volume) as avg_volume

,avg(swap_count) as avg_swap_count

from tab1

group by 1