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seancribbs/gist:267368

Forked from joshfrench/gist:267367
Created January 2, 2010 03:36
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gistfile1.rb
Author.find_by_sql "SELECT * FROM authors INNER JOIN extensions ON authors.id = extensions.author_id GROUP BY extensions.author_id HAVING COUNT(extensions.author_id) > 0"
# Had to add the :group key to produce a unique set.
# Removing `:include => :extensions` also reduced this from two queries to one.
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