On Fri, 22 Aug 2008, Tena Sakai wrote:
> Hi Everybody,
> I had a machine crash a couple of days ago, from which
> I have recovered (ie., postgres is running now), but I
> want to restore from a dump I had made. The dump is
> made by pg_dumpall and I have a gzipped file.
> I am a bit unclear as to how to proceed.
> (A) I get rid of what I have now and use createdb to
> make a "new" database and use psql.
> (B) Don't bother with createdb and let the tables be
> Also the manual tells me (in section 24.1.2):
> psql -f infile postgres
> The last parameter: "postgres" is this the database
> super-user? If so, do I need to spell it out if I am
> logged in as user postgres? If not, what is this?
If you have a gzipped dumpall file, then you would restore it like so:
zcat dumpall.gz | psql postgres
I generally redirect the stdout and stderr output to files for later review
zcat dumpall.gz | psql postgres > /tmp/restore.out 2> /tmp/restore.err
In this case 'postgres' is the initial database that you're connecting to with
psql. This is sometimes called the maintenance database. The dumpall file
will contain all the create database commands necessary for restoring every
database that was dumped.
Jeff Frost, Owner <jeff(at)frostconsultingllc(dot)com>
Frost Consulting, LLC http://www.frostconsultingllc.com/
Phone: 916-647-6411 FAX: 916-405-4032
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