Report spending across billing periods for a provider by service category

Postgres SQL, as run

select provider_name as provider_name,
       billing_account_name as billing_account_name,
       billing_account_id as billing_account_id,
       billing_currency as billing_currency,
       billing_period_start as billing_period_start,
       service_category as service_category,
       service_name as service_name,
       sum(billed_cost) as total_billed_cost
from focus.cost_and_usage
where charge_period_start >= $1::timestamptz
  and charge_period_end < $2::timestamptz
  and provider_name = $3::text
group by provider_name, billing_account_name, billing_account_id, billing_currency, billing_period_start, service_category, service_name
order by total_billed_cost desc nulls last, billing_period_start asc, provider_name asc nulls last, billing_account_id asc nulls last, billing_account_name asc nulls last, billing_currency asc nulls last, service_category asc nulls last, service_name asc nulls last
limit 500

Parameters: $1 = period_start, $2 = period_end, $3 = provider_name

Original FOCUS SQL

SELECT
  ProviderName,
  BillingAccountName,
  BillingAccountId,
  BillingCurrency,
  BillingPeriodStart,
  ServiceCategory,
  ServiceName,
  SUM(BilledCost) AS TotalBilledCost
FROM focus_data_table
WHERE ChargePeriodStart >= ? and ChargePeriodEnd  < ?
  AND ProviderName = ?
GROUP BY
  ProviderName,
  BillingAccountName,
  BillingAccountId,
  BillingCurrency,
  BillingPeriodStart,
  ServiceCategory,
  ServiceName
ORDER BY TotalBilledCost DESC