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 posts.id, sum(case when votes.votetypeid = 6 and votes.creationdate <= '12/1/2011' then 1 else 0 end) as [closedcount] from posts left outer join votes on posts.id = votes.postid where posts.posttypeid = 1 and not posts.closeddate is null and (select count(*) from votes where postid = posts.id and votetypeid = 6) = 0 group by posts.id