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from Posts as p
join PostTypes as pt on p.PostTypeId=pt.Id
join Users as u on p.OwnerUserId =u.Id
where u.DisplayName = 'Mat Mannion' and pt.Name = 'Question'
--OwnerUserId=6282 and PostTypeId=1
--Select * from PostTypes where Name='Question'
--select * from Users where DisplayName='Mat Mannion'