Query: compute_disk_storage_by_resource_group

select
  resource_group || ' [' || sub.title || ']' as "Resource Group",
  sum(d.disk_size_gb) as "GB"
from
  azure_compute_disk as d,
  azure_subscription as sub
where
   d.subscription_id = sub.subscription_id
group by
  resource_group, sub.title
order by
  resource_group;