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Q&A about the site for members of the workforce navigating the professional setting

with tag_list as
(
SELECT p.postid, 
STRING_AGG(t.tagName, ',') WITHIN GROUP (ORDER BY t.tagName) AS tags
  FROM posttags p
  join tags t on p.tagid = t.id
  GROUP BY p.postid
 )
 select top 5 tags
 from tag_list
 group by tags
 order by count(*) desc;

fork query

edited oct 3

created oct 3 anonymous