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Q&A for linguists, teachers and students of the Ukrainian language

Select avg(p2.score) from
posts p
join posts p2 on p.owneruserid = p2.owneruserid and p.id != p2.id
and p.posttypeid =1 and p2.posttypeid=1
join users on p.owneruserid = users.id 
and DATEADD(Day, DATEDIFF(Day, 0, users.CreationDate), 0) = DATEADD(Day, DATEDIFF(Day, 0, p.CreationDate), 0)
and DATEADD(Day, DATEDIFF(Day, 0, users.CreationDate), 0) = DATEADD(Day, DATEDIFF(Day, 0, p2.CreationDate), 0)
where users.CreationDate > '2014'

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edited dec 14 19

created dec 14 19 anonymous