Thanks to Pavan for the answer regarding HOT. Does anybody have an answer regarding the postgres role or compat lib ? > > * From: "Adam Rich" <adam(dot)r(at)sbcglobal(dot)net> > * To: <pgsql-general(at)postgresql(dot)org> > * Subject: 8.3.0 upgrade > * Date: Mon, 17 Mar 2008 02:13:55 -0500 > > > I just finished upgrading my production DB to 8.3.0. Everything went > smoothly, but I thought of a few questions. > > After the upgrade, while restoring my backup to the new version, > I got this error message: > > ERROR: role "postgres" already exists > > I assume this is nothing to be concerned about. But is there something > I could have done to avoid this error? (I think I followed the upgrade > instructions to the letter). Is there any scenario where the "postgres" > role wouldn't exist? (should pg_dumpall exclude it?) > > Moving on... In step 6 of the upgrade instructions, it says: > > "Restore your previous pg_hba.conf and any postgresql.conf modifications." > > Perhaps this should also mention pg_ident.conf since I restored the > two mentioned files, but still couldn't connect. The third completely > escaped my mind until I ran a "diff" on the old & new data directories. > > Next, one of my apps failed because of a dependency on libpq.so.4. > During previous upgrades, I remedied that by installing this package: > > compat-postgresql-libs-4-2PGDG.rhel4 > > But it seems under the 8.3.0 binary downloads, this package is no longer > available. The only compat package is "compat-postgresql-libs-3" > which of course includes only libpq.so.3 so I had to browse older > releases to find the missing version which I thought seemed a little odd. > Am I missing something? > > Finally, regarding the new "HOT" feature. The release notes say that > benefits are realized "if no changes are made to indexed columns". > If my updates include *all columns* (the SQL is generated dynamically) > but the new value matches the old value for all *indexed* columns, > do I still reap the benefits of HOT? > > Thanks! > > Adam > > -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
