Re: pg_dump and foreign keys troubles

Thank you all but I've fixed the problem doing that

1) retrieved the original schema of the DB as a SQL script.
2) created a new database with just the empty schema
3) pg_restore on the new DB of a 'c' format dump of the production DB
with the options --data-only and --disable-triggers

thanks

Paolo

On 09/11/06, Jim C. Nasby <jim@nasby.net> wrote:
> On Tue, Nov 07, 2006 at 04:42:35PM -0500, Tom Lane wrote:
> > "Paolo Negri" <hungrylist@gmail.com> writes:
> > > My problem is that I have to load the dump (from a 7.3) in a brand new
> > > database (8.1) and then I need to do quite a few changes to the schema
> > > dropping some old foreign constraint and adding some different ones.
> > > ...
> > > How can I tell to pg_dump to dump the schema with foreign keys
> > > construct instead of creating constraint trigger?
> >
> > You can't: the information just isn't there in 7.3.  You'll need to look
> > at the trigger arguments and reconstruct the FKs.
> >
> > IIRC the contrib/adddepend script might be able to help you with this.
>
> Would a 7.4 or newer pg_dump connecting to a 7.4 database know enough to
> do this for you? If so, Paolo could restore his dump to a 7.3 install
> and go from there...
> --
> Jim Nasby                                            jim@nasby.net
> EnterpriseDB      http://enterprisedb.com      512.569.9461 (cell)
>