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SELECT tag_name, count(*) FROM
(SELECT p.Id as post_id FROM
  Posts p
  JOIN PostTags pt on pt.PostId = p.Id
  JOIN Tags t on t.Id = pt.TagId
  WHERE t.TagName like '%cloudformation%') as posts_matched
JOIN 
(SELECT  t.TagName as tag_name, p.Id as post_id FROM
  Posts p
  JOIN PostTags pt on pt.PostId = p.Id
  JOIN Tags t on t.Id = pt.TagId) as post_tags 
ON post_tags.post_id = posts_matched.post_id
GROUP BY tag_name

fork query

edited aug 6 20

created aug 6 20 anonymous