Re: Scanning pg_tablespace from walsender

On Mon, Jan 3, 2011 at 16:29, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Magnus Hagander <magnus@hagander.net> writes:
>> I'm working on completing Heikki's patch for streaming base backups,
>> and have run into a problem:
>
>> In order to dump all tablespaces properly, I have to know where they
>> are (d'uh). In order to do that, I need to scan pg_tablespace.
>
> Wait a minute.  Isn't this problem about to metastasize into "I need to
> read *every* global catalog from walsender"?  If not, why not?  If so,
> I think we need another answer.

Um, why would I need that? I need to be able to find all files, which
means I need to find all tablespaces. I don't see how that would turn
into "every global catalog"?

(It already needs pg_authid and similar for the login, but that's
shared with all others)

--
 Magnus Hagander
 Me: http://www.hagander.net/
 Work: http://www.redpill-linpro.com/