Re: Control File

On Fri, Apr 14, 2006 at 11:10:34AM -0400, Tom Lane wrote:
> "Jim C. Nasby" <jnasby@pervasive.com> writes:
> > As for adding checks to startup scripts, that's a PITA because
> > those scripts will have no idea of where tablespaces might be defined,
> > so you'd have to hard-code that info in.
<snip> 
> OTOH you could argue that it'd be just as reasonable for the postmaster
> to make this check, seeing that it does go to the trouble of verifying
> the contents of $PGDATA/PG_VERSION.

Yup. Plus it seems rather silly to expect every port/package of
PostgreSQL to add code to check for functional tablespace mounts.

Perhaps an easy means would be to put a PG_VERSION file in each
tablespace when it's created and then check all of them. Tablespaces
arguably make it slightly easier to accidentally try and mount something
from a different version...
-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461