http://meta.stackoverflow.com/questions/329611/how-to-view-active-history-for-the-specific-day-for-specific-tag
Q&A for professional and enthusiast programmers
select distinct p.id as [Post Link] , case when p.posttypeid = 1 then 'Q' else 'A' end as qa , p.creationdate , p.score , p.owneruserid as [User Link] from posts p inner join posttags pt on pt.postid = coalesce(p.parentid, p.id) inner join tags t on t.id = pt.tagid inner join posthistory ph on ph.postid = p.id where t.tagname = ##tag:string## and ph.creationdate between ##date:string## and dateadd(d, 1, cast(##date:string## as date))