par_rnMIN, AVG and MAX Time between Blocks on Ethereum by Hour (in Seconds)
    Updated 2022-11-25
    select
    date_trunc('hour', a.block_timestamp) as hour,
    avg(datediff(second, a.block_timestamp, b.block_timestamp)) as "Average Time Between Blocks",
    min(datediff(second, a.block_timestamp, b.block_timestamp)) as "Minimum Time Between Blocks",
    max(datediff(second, a.block_timestamp, b.block_timestamp)) as "Maximum Time Between Blocks"
    from ethereum.core.fact_blocks a
    join ethereum.core.fact_blocks b
    on a.block_number = b.block_number - 1
    where a.block_timestamp >= '2022-06-01'
    group by 1
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