Re: [HACKERS] now 6.4

> > Bruce Momjian:
> > > PG_VERSION is now 6.4.  initdb everyone.  Or did we decide not to do
> > > this if we could help it.  I think we will still need to run initdb, and
> > > move the data files.
> > 
> > I had thought we were going to avoid changing this unless there were changes
> > to persistant structures. Do you know what changed to require this?
> > 
> > Thanks
> 
> The contents of the system tables are going to change between releases,
> almost for sure.  What I think we are going to do is have people pg_dump
> -schema their databases, mv /data to /data.old, run initdb, run to
> create the old schema, and move the data/index files back into place.
> I will probably write the script and have people test it.
> 
> As long as we don't change the data/index structure, we are OK.  Is that
> good, or did you think we would be able to get away without system table
> changes?

I have no problem with catalog changes and dumping the schema if we can
write a script to help them do it. I would hope we can avoid having to make
someone dump and reload their own data. I am thinking that it could be
pretty inconvenient to dump/load and reindex something like a 50GB table with
6 indexes. 

Thanks for the clarification.
-dg

David Gould           dg@illustra.com            510.628.3783 or 510.305.9468
Informix Software                      300 Lakeside Drive   Oakland, CA 94612
 - A child of five could understand this!  Fetch me a child of five.