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;