Distribution of number of votes on questions


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-- compute for each question how many votes it has 
--(question means posttypeid = 1)
with a as (
   Select Count(v.PostId) n_votes
   from Votes v join Posts p 
   on v.PostId = p.Id
   where p.PostTypeId in (1) and v.VoteTypeId in (2,3)
   group by p.Id

--- Create histogram
select n_votes, Count(n_votes) 
from a
group by n_votes
order by n_votes

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