Query: sns_topics_for_s3_bucket

select
  t ->> 'TopicArn' as topic_arn
from
  aws_s3_bucket as b,
  jsonb_array_elements(
    case jsonb_typeof(event_notification_configuration -> 'TopicConfigurations')
      when 'array' then (event_notification_configuration -> 'TopicConfigurations')
      else null end
    )
    as t
where
  b.arn = $1;