Very much not Perl. A better place to ask this question is http://forums.devshed.com/

I don't actually know the answer to your question. I've only had to write queries with only one field in the group by clause.

If you're using MySQL this may help http://dev.mysql.com/doc/mysql/en/group-by-optimization.html

In reply to Re: SQL GROUP BY Clause by xorl
in thread SQL GROUP BY Clause by lex

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