Q&A about the site for music historians, critics, and fans
select count (distinct p.Id) from Users u inner join Posts p on u.Id = p.OwneruserId inner join PostHistory ph on ph.PostId = p.Id where u.CreationDate >= '2019-01-01' and u.CreationDate < '2020-01-01' and ph.PostHistoryTypeId = 12 and p.CreationDate = (select min (Creationdate) from Posts p2 where p2.Id = p.Id)