Обсуждение: best way for constants in the database

anybody have a good way to impliment constants in the database?

using an immutable pgpgsql function, constant_name() - works, but not
necessarily very efficient.

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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
answeris, as usual, "it depends."  What're you trying to accomplish with a constant?