Marc Fromm wrote:
>
> There were no links or other helpful information provided. Has anyone
> upgraded from 8.1 to the latest version 9.0.1? Can you do it in one jump?
>
> Can it be done using yum on a RHEL server?
>
As of RHEL 5.5, there is now an official postgresql84 package you can
easily load. What I would do in your situation is target upgrading from
8.1 to 8.4 initially, via the dump/reload method, with the main expected
problem being the type case changes already mentioned. I've saved a
number of good links on this general topic onto
http://wiki.postgresql.org/wiki/Version_History that should provide some
additional guidance if you read through them a bit.
By the time you get that done, 9.0 should be a better tested and stable
release, and you can do a quick binary upgrade from 8.4 to 9.0 using the
pg_upgrade utility.
--
Greg Smith, 2ndQuadrant US greg@2ndQuadrant.com Baltimore, MD
PostgreSQL Training, Services and Support www.2ndQuadrant.us
Author, "PostgreSQL 9.0 High Performance" Pre-ordering at:
https://www.packtpub.com/postgresql-9-0-high-performance/book
