Re: Function is called multiple times in subselect - Mailing list pgsql-bugs

On Thu, Mar 11, 2004 at 11:02:21PM -0500, Tom Lane wrote:
> Chris Campbell <chris@bignerdranch.com> writes:
> > I don't think this should be happening (PostgreSQL 7.4.1).
>
> Sorry, this isn't a bug.  Flattening the subquery is generally desirable
> behavior.

And if you are concerned about the query's cost vs its actual output
(you weren't clear in your original message), there is the 'iscachable'
pragma for functions.

Alex

--
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Alex J. Avriette, Unix Systems Gladiator
Liberty in your lifetime: http://www.freestateproject.org/