Обсуждение: Separating Databases on Different Partitions

Is there a way to get Postgres to store each database in a separate directory?  I first hoped I could just use symbolic links under the data directory but I have no idea which files are assigned to which database.

The reason I am wanting to do this is that I have a database set up for each user on my server.  I need to put their database under their home directory somewhere so I know how much disk space each user account is taking.  I also need to put the database under the /home partition as it has a lot more space than the partition containing the data directory.

Thanks,
Aaron

"Andy Shellam" <andy.shellam@mailnetwork.co.uk> writes:
> I believe you could probably do this best with table spaces.

Right, that's the thing to use.

> There is a downside in that the user could create a new table and override
> the table space to that of another user.

Not with appropriate permissions set on the tablespaces.

            regards, tom lane

I think the tablespace option will work best - I will check it out.  I do not give the users control of the database since I do the development, I just need a way to allocate the space and charge for space used.  Since cPanel monitors user space, I don't want to rely on having to query the database to get size information - I would have to put together separate scripts to watch space usage which I would rather not do.

Thanks for the help!

-Aaron

Ah, fair enough, table spaces are definitely the way to go then.  I did
use it about a year ago to put one database on a different physical
drive, but I haven't used it for ages so cannot remember how to set it up.

Andy

Aaron Bono wrote:
> I think the tablespace option will work best - I will check it out.  I
> do not give the users control of the database since I do the
> development, I just need a way to allocate the space and charge for
> space used.  Since cPanel monitors user space, I don't want to rely on
> having to query the database to get size information - I would have to
> put together separate scripts to watch space usage which I would
> rather not do.
>
> Thanks for the help!
>
> -Aaron
>
> On 5/30/06, *Andy Shellam* <andy.shellam@mailnetwork.co.uk
> <mailto:andy.shellam@mailnetwork.co.uk> > wrote:
>
>     Hi Aaron
>
>
>
>     I believe you could probably do this best with table spaces.
>     You'll have to look it up in the documentation as I haven't done
>     it for a while.
>
>     You symlink a directory under <pgdata>/pg_tblspc to another
>     physical directory (eg. Your user's home/db directory), then when
>     you create the database, set its default table space to which
>     directory you create.
>
>
>
>     There is a downside in that the user could create a new table and
>     override the table space to that of another user.
>
>
>
>     You could always query the system catalogues for the usage for
>     each user's database and add that to the physical size of their
>     home directory?
>
>
>
>     Regards,
>
>
>
>     Andy
>
>
> !DSPAM:14,447c6d25256841812113538!