Q&A about the site for builders and users of networked sensors and control devices in the contexts of smart homes, industry automation, or environmental sensors
select distinct posts.*
left outer join votes on posts.id = votes.postid
where posts.posttypeid = 1 and not posts.closeddate is null
and votes.votetypeid = 6
and votes.creationdate <= '12/1/2011'
and (select count(*) from votes where postid = posts.id and votetypeid = 6) < 5