> Sir,
>
> I am currently using ingres and would like to migrate to postgres.
> However the problem is that my existing database is now over 2GB and all of
> my scsi disks are only at 2GB. In ingres all I have to do to extend large
> tables to multiple locations or file systems (disks) thereby enabling me to
> look into my table as if it is residing in a single disk. Is this posible
> with postgres?
It is possible with most unix kernels, it is known as "disk striping",
a.k.a. RAID0.
As a kludge, you might want to scatter the tables across multiple
filesystems and symlink them into the database directory. That will
work if no table is larger than 2Gb. When a table reaches 2Gb, you can
let it grow a little over, enough to get split, then move out the
surplus (not sure whether postgres splits tables in systems other than
linux).
--Gene