Query: vpc_security_groups_for_rds_db_cluster

select
  csg ->> 'VpcSecurityGroupId' as group_id
from
  aws_rds_db_cluster as c,
  jsonb_array_elements(c.vpc_security_groups) as csg
where
  c.arn = $1
  and account_id = split_part($1, ':', 5)
  and region = split_part($1, ':', 4);