Re: ALTER EXTENSION ... UPGRADE;

"David E. Wheeler" <david@kineticode.com> writes:
> On Dec 10, 2010, at 3:03 PM, Tom Lane wrote:
>>> Yeah, it should be *to* 1.12. FWIW, this is how Bricolage upgrade scripts are handled: version-string-named
directorieswith the appropriate scripts to upgrade *to* the named version number.
 

>> But you still have to know what you're upgrading *from*.

> Huh? It's in the pg_extension catalog.

How do you select which upgrade script to apply?
        regards, tom lane