Re: Guidelines for upgrading from pgsql7.4.xxx server to

Chris Travers <chris@verkiel.metatrontech.com> writes:
> Luki Rustianto wrote:
>> I wonder if there are any guidelines / step by step / special
>> considerations whether it applies to database structure or the
>> application it self if we want to upgrade to version 8.xxx ?

> Depends on if your app depends on the (hidden) OID fields that were
> included by default before 8.0.

That's just one of numerous minor incompatibilities.  Read the release
notes and test your applications --- but by all means fix whatever
application issues you need to fix, and get moved over.  8.1 is way
better than 7.4 by any number of measures; even more to the point, we
won't be supporting 7.4 forever.

            regards, tom lane