Hi Tom
On Mon, Dec 6, 2010 at 7:18 PM, Tom Lane
<tgl@sss.pgh.pa.us> wrote:
Rafael Enrique Ortiz Guerrero <
dirakx@gmail.com> writes:
> I'm trying to restore a BD from pg_data, (i don't have a dump).
> I only have the physical files, googling around have not give useful
> results.
> how can i restore my db from files?
then what you do is install a server executable that matches the version
that built the database originally, fire it up, and you have a working
database. From there you can either dump, or just use it as-is.
I have a server executable of the postgres version that the DB was working on, the problem is that i have two versions of postgres running in that server, but only the latest version (8.4) seems to be getting up the DBs, while the old version don't, I've checked and all the DBs are there in $PGDATA, I've tried with psql and it only shows the 8.4 DBs not the 8.2 DBs.
What can I do?
Thanks for your reply Tom!
If you're not sure which version generated the database, looking into
the PG_VERSION file found at the top level of the tree would be a good
first step. You also have to match the hardware architecture and
certain configuration properties (such as whether timestamps are
float-based or int-based), but the server should complain if you try to
start it against an incompatible database. Generally you *don't* need
to worry about minor version, eg, any 8.4.x release will do for an 8.4
database.
regards, tom lane
