Revenus en cascade

select "billing_period", "currency", "total", "2022-11-01", "2022-12-01", "2023-01-01", "2023-02-01", "2023-03-01", "2023-04-01", "2023-05-01", "2023-06-01", "2023-07-01", "2023-08-01", "2023-09-01", "2023-10-01", "2023-11-01", "2023-12-01", "2024-01-01", "2024-02-01", "2024-03-01", "2024-04-01", "2024-05-01", "2024-06-01", "2024-07-01", "2024-08-01", "2024-09-01", "2024-10-01", "2024-11-01", "deferred", "future_billings"
from (
  with unbilled_ar_accounts as (
    values 'UnbilledAccountsReceivable'
  )

  , formatted_changes as (
    select
      booked_date,
      date_format(accounting_period_date, '%Y-%m-%d') as accounting_period,
      debit,
      credit,
    	debit_account_type,
    	credit_account_type,
      currency,
      if(lower(currency) in ('bif', 'clp', 'djf', 'gnf', 'jpy', 'kmf', 'krw', 'mga', 'pyg', 'rwf', 'vnd', 'vuv', 'xaf', 'xof', 'xpf'), cast(amount as decimal(18, 0)), cast(0.01 * amount as decimal(18, 2))) as decimalized_settlement_amount,
      case when debit in (select * from unbilled_ar_accounts) OR credit in (select * from unbilled_ar_accounts) then true else false end AS is_unbilled
    from revenue_recognition_debits_and_credits
  )

  , raw_net_changes as (
    select
      debit as account,
      debit_account_type as account_type,
      decimalized_settlement_amount as raw_net_change,
      *
    from formatted_changes
    union all
    select
      credit as account,
      credit_account_type as account_type,
      -decimalized_settlement_amount as raw_net_change,
      *
    from formatted_changes
  )

  , net_changes as (
    select
      (case when account_type in ('Assets', 'ContraRevenue', 'Expenses', 'Losses')
      	then raw_net_change else -raw_net_change end) as net_change,
      *
    from raw_net_changes
  )

  , waterfall_entries as (
    select
      account,
      currency,
      date_trunc('month', booked_date) as billing_period,
      accounting_period,
      is_unbilled,
      (net_change * (case when account_type = 'Revenue' then 1 else -1 end)) as net_change
    from net_changes
    where account_type in ('Revenue', 'ContraRevenue')
  )

  select
    currency,
    billing_period,
    sum(net_change) as total,
      nullif(sum(case when accounting_period = '2022-11-01' then net_change else 0 end), 0) as "2022-11-01",
      nullif(sum(case when accounting_period = '2022-12-01' then net_change else 0 end), 0) as "2022-12-01",
      nullif(sum(case when accounting_period = '2023-01-01' then net_change else 0 end), 0) as "2023-01-01",
      nullif(sum(case when accounting_period = '2023-02-01' then net_change else 0 end), 0) as "2023-02-01",
      nullif(sum(case when accounting_period = '2023-03-01' then net_change else 0 end), 0) as "2023-03-01",
      nullif(sum(case when accounting_period = '2023-04-01' then net_change else 0 end), 0) as "2023-04-01",
      nullif(sum(case when accounting_period = '2023-05-01' then net_change else 0 end), 0) as "2023-05-01",
      nullif(sum(case when accounting_period = '2023-06-01' then net_change else 0 end), 0) as "2023-06-01",
      nullif(sum(case when accounting_period = '2023-07-01' then net_change else 0 end), 0) as "2023-07-01",
      nullif(sum(case when accounting_period = '2023-08-01' then net_change else 0 end), 0) as "2023-08-01",
      nullif(sum(case when accounting_period = '2023-09-01' then net_change else 0 end), 0) as "2023-09-01",
      nullif(sum(case when accounting_period = '2023-10-01' then net_change else 0 end), 0) as "2023-10-01",
      nullif(sum(case when accounting_period = '2023-11-01' then net_change else 0 end), 0) as "2023-11-01",
      nullif(sum(case when accounting_period = '2023-12-01' then net_change else 0 end), 0) as "2023-12-01",
      nullif(sum(case when accounting_period = '2024-01-01' then net_change else 0 end), 0) as "2024-01-01",
      nullif(sum(case when accounting_period = '2024-02-01' then net_change else 0 end), 0) as "2024-02-01",
      nullif(sum(case when accounting_period = '2024-03-01' then net_change else 0 end), 0) as "2024-03-01",
      nullif(sum(case when accounting_period = '2024-04-01' then net_change else 0 end), 0) as "2024-04-01",
      nullif(sum(case when accounting_period = '2024-05-01' then net_change else 0 end), 0) as "2024-05-01",
      nullif(sum(case when accounting_period = '2024-06-01' then net_change else 0 end), 0) as "2024-06-01",
      nullif(sum(case when accounting_period = '2024-07-01' then net_change else 0 end), 0) as "2024-07-01",
      nullif(sum(case when accounting_period = '2024-08-01' then net_change else 0 end), 0) as "2024-08-01",
      nullif(sum(case when accounting_period = '2024-09-01' then net_change else 0 end), 0) as "2024-09-01",
      nullif(sum(case when accounting_period = '2024-10-01' then net_change else 0 end), 0) as "2024-10-01",
      nullif(sum(case when accounting_period = '2024-11-01' then net_change else 0 end), 0) as "2024-11-01",
    sum(case when accounting_period >= '2024-12-01' and is_unbilled = false then net_change else 0 end) as deferred,
    sum(case when accounting_period >= '2024-12-01' and is_unbilled = true then net_change else 0 end) as future_billings

  from waterfall_entries
  where
    net_change != 0
    and billing_period >= timestamp '2022-11-01 00:00:00'
    and billing_period < timestamp '2023-12-01 00:00:00'
  group by currency, billing_period
  order by currency asc, billing_period asc
)