Re: CREATE OR REPLACE FUNCTION vs ownership

On Oct 2, 2009, at 7:49 AM, Tom Lane wrote:

> But in fact CREATE OR REPLACE is *not* meant to be the same as DROP
> followed by CREATE.  What it is meant to do is allow you to replace  
> the
> implementation of the function while existing callers see it as still
> being the same function.  Thus we prevent you from changing the name,
> arguments, or result type of the function.  If we were to replace the
> permissions that would result in a more insidious but still real  
> reason
> why former callers would suddenly stop working.  In effect,  
> permissions
> are part of the function's API.

Okay, this convinces me otherwise. But is it not in fact the case that  
CREATE OR REPLACE FUNCTION doesn't expire the old version of the  
function in the cache of other processes? Don't those processes have  
to reconnect in order to see the new function?

Best,

David