On Thu, 24 Mar 2005, Enrico Weigelt wrote:

> * Alvaro Herrera <[EMAIL PROTECTED]> wrote:
> > On Thu, Mar 24, 2005 at 02:32:48PM +0100, Enrico Weigelt wrote:
> >
> > > BTW: is it possible to explicitly clear the cache for immutable
> > > functions ?
> >
> > What cache?  There is no caching of function results.
>
> Not ? So what's immutable for ?

For knowing that you can do things like use it in a functional index and
I think for things like constant folding in a prepared plan.

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