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Earth Science

Q&A for those interested in the geology, meteorology, oceanography, and environmental sciences

SELECT DISTINCT  t.*
From Users u, Posts p, PostTags pt, Tags t -- Prod Cartesiano
WHERE u.id = p.OwnerUserId 
  AND u.DisplayName = 'Jon Skeet'
    AND p.Id = pt.PostId
      AND  pt.TagId = t.Id

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