Re: More atomic online backup

On Fri, 6 Jan 2006, Bruno Almeida do Lago wrote:

> Hi,
>
> 1) I've a pg cluster with 5 databases here. I was wondering if it's possible
> to make an online backup of 1 database only, not the entire cluster.
>

Check out tool pg_dump or the documents for other options.

> 2) Online backups at Oracle are done per tablespace. Do you see any
> advantage on this?
>

AFAIK, In Oracle, a tablespace is a set of (logically related) files
belongs to one database, so do tablespace backup is a natural option.
PostgreSQL can have several databases sharing one tablespace, which makes
the backup tablespace logically hard to understand, and we don't support
tablespace level backup yet.

Regards,
Qingqing