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select *, [percentages] = count(groups) over(partition by groups) from ( select *, case when "post_count" = 0 then '0' when "post_count" > 0 and "post_count" <= 10 then '1-10' when "post_count" > 10 then '10+' end as groups, (select count(Id) from Users) as "total_user_count" from ( select u.Id, count(p.Id) as "post_count" from Users u full outer join Posts p on (p.OwnerUserID = u.Id) where p.Id is not null group by u.Id)t )t2 --group by Id, post_count, groups ;