Excludes tags that have been synonymized with another tag.
Q&A about the site for Ubuntu users and developers
SELECT t.TagName, ex.Body, wiki.Body, CONCAT('https://stackoverflow.com/q/', ex.Id) AS [Wiki Link] FROM Tags t JOIN Posts ex ON ex.Id = t.ExcerptPostId JOIN Posts wiki ON wiki.Id = t.WikiPostId LEFT JOIN TagSynonyms ts ON ts.SourceTagName = t.TagName WHERE ex.Body IS NULL --AND wiki.Body IS NOT NULL --AND ts.Id IS NULL