Re: Calling the same function more than once with the

[Scott Marlowe <smarlowe@xxxxxxxxxxxxxxxxx>]

On Wed, 2006-04-19 at 18:23, Tom Lane wrote:
> "Clodoaldo Pinto" <clodoaldo.pinto@xxxxxxxxx> writes:
> > I'm building a function caller() in which a certain function called()
> > will be called many times in from clauses with the same arguments and
> > I'm wondering if is there a performance penalty for that or if the sql
> > engine is smart enough to call called() only once.
> 
> No, it isn't.

HOWEVER, depending on how you declare the function, you should be able
to index it.