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From: Owen Jacobson <ojacobson@osl.com>
To: pgsql-sql@postgresql.org
Subject: Re: best way for constants in the database
Date: Mon, 16 Jan 2006 10:53:52 -0800
Message-ID: <144D12D7DD4EC04F99241498BB4EEDCC1C8046@nelson.osl.com> (raw)

chester c young wrote:

> anybody have a good way to impliment constants in the database?
> 
> using an immutable pgpgsql function, constant_name() - works, but not
> necessarily very efficient.

A function declared IMMUTABLE should be efficient enough; it'll usually be evaluated once per query at most.  The real answer is, as usual, "it depends."  What're you trying to accomplish with a constant?



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