Query: efs_mount_targets_for_efs_file_system

with efs_details as (
  select
    file_system_id
  from
    aws_efs_file_system
  where
    arn = $1
    and account_id = split_part($1, ':', 5)
    and region = split_part($1, ':', 4)
)
select
  mt.mount_target_id
from
  aws_efs_mount_target mt
join
  efs_details ed on mt.file_system_id = ed.file_system_id;