select distinct

avg(price_usd) over (partition by date_trunc('day',block_timestamp ) order by date_trunc('day',block_timestamp )) as AVG_PRICE,

min(price_usd) over (partition by date_trunc('day',block_timestamp ) order by date_trunc('day',block_timestamp )) as MIN_PRICE,

MAX(price_usd) over (partition by date_trunc('day',block_timestamp ) order by date_trunc('day',block_timestamp )) as MAX_PRICE,

COUNT( price_usd) over (partition by date_trunc('day',block_timestamp ) order by date_trunc('day',block_timestamp )) as Sale_count,

date_trunc('day',block_timestamp ) Hour

from ethereum.nft_events

where contract_address = '0xc2c747e0f7004f9e8817db2ca4997657a7746928'

and event_type = 'sale'

and date_trunc('day',block_timestamp ) > '2021-01-27T09:55:55Z'

order by hour--price_usd desc