Multiple versions on same box
Hello,
For upgrade purposes I now have 7.4 and 8.2 on the same Ubuntu box,
and that brings up some questions that I know of, and I'm sure many
that I haven't thought of yet.
I assume that I'll have to put the full path to the version of psql,
etc, corresponding to the same version database that I want to access.
What is the best way to upgrade? Use pg_dumpall (using 8.2's
program), afterwards redirect that file into v8.2 via psql v8.2?
Many thanks!
Ralph Smith
smithrn@u.washington.edu
=====================
On Mon, 2007-10-08 at 17:34 -0700, Ralph Smith wrote:
What is the best way to upgrade? Use pg_dumpall (using 8.2's
program), afterwards redirect that file into v8.2 via psql v8.2?
There are lots of ways to do this. My favorite is to bring a new cluster
on port 5433 and then pipe data between them, roughly like this:
$ /path/to/7.4/pg_dumpall -p5432 ... | /path/to/8.2/psql -p5433 -qaf-
restore.log 2>&1
This obviates the intermediate dump file, which can be large.
As a precaution, I remove the PATH elements that locate pg (thus
requiring that I specify the full path) and I unsetl PG* variables.
-Reece
--
Reece Hart, http://harts.net/reece/, GPG:0x25EC91A0
On 10/9/07, Reece Hart <reece@harts.net> wrote:
On Mon, 2007-10-08 at 17:34 -0700, Ralph Smith wrote:
What is the best way to upgrade? Use pg_dumpall (using 8.2's program),
afterwards redirect that file into v8.2 via psql v8.2?There are lots of ways to do this. My favorite is to bring a new cluster
on port 5433 and then pipe data between them, roughly like this:$ /path/to/7.4/pg_dumpall -p5432 ... | /path/to/8.2/psql -p5433 -qaf- >
restore.log 2>&1
Note that when possible you should dump with the pg_dump/pg_dumpall of the
version you're going to, in this case 8.2's pg_dumpall