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simonista/gist:2631125

Created May 7, 2012 22:40
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sql-question
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gistfile1.sql
select id, avatar_image_url as aiu from users order by aiu; -- works!
select id, avatar_image_url as aiu from users order by coalesce(avatar_image_url, 'zzz'); -- works!
select id, avatar_image_url as aiu from users order by coalesce(aiu, 'zzz'); -- doesn't work :(
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