Casey Duncan wrote: > > On Feb 15, 2007, at 5:50 PM, Alvaro Herrera wrote: > >Hum, yeah, I forgot to mention that you need to create the 098E > >pg_clog > >segment for that to work at all :-) Fill it with byte 0x55 till the > >needed position, which is the bit pattern for "all transactions > >committed". I'd make sure to remove it manually after the freeze is > >done, just in case! (I think the system would remove it at next > >checkpoint, but anyway.) > > That seems a bit scary to do on a running production server. Could I > get away with dropping the template0 database and loading one from > another identical pg instance (or a new one) or will that freak > things out? If you haven't modified template1 since initdb, you can recreate template0 by just dropping it and copying from template1; then do a VACUUM FREEZE and set datallowconn to false. That's what initdb does. -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc.
