Excerpts from Robert Haas's message of vie jun 24 12:06:17 -0400 2011:
> On Fri, Jun 24, 2011 at 11:17 AM, Alvaro Herrera
> <alvhe...@commandprompt.com> wrote:
> > Another thing I just noticed is that if you pg_upgrade from a previous
> > release, all the NOT NULL pg_constraint rows are going to be missing.
> 
> Uh, really?  pg_upgrade uses SQL commands to recreate the contents of
> the system catalogs, so if these entries aren't getting created
> automatically, that sounds like a bug in the patch...

Ah -- we should be fine then.  I haven't tested that yet (actually I
haven't finished tinkering with the code).

-- 
Álvaro Herrera <alvhe...@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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