Query: lambda_function_public_status

with functions as (
  select
    case
      when policy_std -> 'Statement' ->> 'Effect' = 'Allow'
      and (
        policy_std -> 'Statement' ->> 'Prinipal' = '*'
        or (policy_std -> 'Principal' -> 'AWS') :: text = '*'
      ) then 'public'
      else 'private'
    end as visibility
  from
    aws_lambda_function
)
select
  visibility,
  count(*)
from
  functions
group by
  visibility;