mlhAverage recorded time between two blocks
    Updated 2022-12-12
    select avg(diff) as avg_block_time, max(diff) as max_block_time, min(diff) as min_block_time, avg(tx_count) as avg_block_tx, 'Algorand' as blockchain
    from (
    select block_timestamp, lead(block_timestamp) over(order by block_ID) as next_block_time, datediff('s',block_timestamp,next_block_time) as diff, tx_count
    from algorand.core.fact_block
    where block_timestamp::date >= '2022-01-01'
    )

    union all

    select avg(diff) as avg_block_time, max(diff) as max_block_time, min(diff) as min_block_time, avg(tx_count) as avg_block_tx, 'Flow' as blockchain
    from (
    select block_timestamp, lead(block_timestamp) over(order by block_height) as next_block_time, datediff('s',block_timestamp,next_block_time) as diff, tx_count
    from flow.core.fact_blocks
    where block_timestamp::date >= '2022-01-01'
    )

    union all

    select avg(diff) as avg_block_time, max(diff) as max_block_time, min(diff) as min_block_time, avg(tx_count) as avg_block_tx, 'Near' as blockchain
    from (
    select block_timestamp, lead(block_timestamp) over(order by block_id) as next_block_time, datediff('s',block_timestamp,next_block_time) as diff, TX_COUNT
    from near.core.fact_blocks
    where block_timestamp::date >= '2022-01-01'
    )


    union all

    select avg(diff) as avg_block_time, max(diff) as max_block_time, min(diff) as min_block_time, avg(tx_count) as avg_block_tx, 'Ethereum' as blockchain
    from (
    select block_timestamp, lead(block_timestamp) over(order by block_number) as next_block_time, datediff('s',block_timestamp,next_block_time) as diff, tx_count
    from ethereum.core.fact_blocks
    where block_timestamp::date >= '2022-01-01'
    )
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