Re: pg_basebackup for streaming base backups

On Sun, Jan 16, 2011 at 18:18, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Magnus Hagander <magnus@hagander.net> writes:
>>> + * The file will be named base.tar[.gz] if it's for the main data directory
>>> + * or <tablespaceoid>.tar[.gz] if it's for another tablespace.
>>>
>>> Well we have UNIQUE, btree (spcname), so maybe we can use that here?
>
>> We could, but that would make it more likely to run into encoding
>> issues and such - do we restrict what can be in a tablespace name?
>
> No.  Don't even think of going there --- we got rid of user-accessible
> names in the filesystem years ago and we're not going back.  Consider
>        CREATE TABLESPACE "/foo/bar" LOCATION '/foo/bar';

Well, we'd try to name the file for that "<oid>-/foo/bar.tar", which I
guess would break badly, yes.

I guess we could normalize the tablespace name into [a-zA-Z0-9] or so,
which would still be useful for the majority of cases, I think?


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