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Q&A for professional mathematicians

;  with revisions_cte as
(
SELECT
DISTINCT p.Id AS pid, ph1.Id AS phId
FROM PostHistory ph1 INNER JOIN Posts p ON ph1.PostId=p.Id
WHERE ph1.PostHistoryTypeId in (2,5,8)
  and LOWER(ph1.Text) Like '%##word?haussdorff##%'
  and NOT(LOWER(p.Body) Like '%##word##%')
), firstrev_cte AS
(SELECT
pid, MIN(ph2.Id) as MinId
  FROM revisions_cte INNER JOIN PostHistory ph2 ON ph2.PostId=pid
  WHERE (ph2.Id>phId)
   AND ph2.PostHistoryTypeId in (2,5,8)
   AND NOT(LOWER(ph2.Text) Like '%##word##%')
GROUP BY pid
)
--- 2 = Initial Body - initial post raw body text
--- 5 = Edit Body - modified post body (raw markdown)
--- 8 = Rollback Body - reverted body (raw markdown)

SELECT PostId AS [Post Link],
  revisions = 'site://posts/' + CAST(PostId AS varchar)+'/revisions',
  UserId AS [User Link], UserDisplayName, CreationDate, Comment
FROM PostHistory INNER JOIN firstrev_cte ON PostHistory.Id=MinId
ORDER BY CreationDate DESC

fork query

edited nov 21 19

created nov 21 19 Martin20528