Re: [HACKERS] [COMMITTERS] pgsql: Add pg_sequence system catalog

Peter,

* Peter Eisentraut (peter.eisentraut@2ndquadrant.com) wrote:
> On 1/19/17 11:03 AM, Stephen Frost wrote:
> > I'd suggest using our usual approach in pg_dump, which is matching based
> > on the OID, like so:
> >
> > WHERE c.oid = '%u'::oid
> >
> > The OID is in: tbinfo->dobj.catId.oid
> >
> > Also, you should move the selectSourceSchema() into the per-version
> > branches and set it to 'pg_catalog' for PG10 and up, which would allow
> > you to avoid having to qualify the table names, et al.
>
> Does the attached patch look correct to you?

On a one-over, yes, that looks correct and avoids the issue of running
in a user's schema.

It wouldn't hurt to add a comment as to why things are so different in
PG10 than other versions, ie:

/** In PG10, sequence meta-data was moved into pg_sequence, so switch to* the pg_catalog schema instead of operating in
auser schema and pull* the necessary meta-data from there.*/ 

Thanks!

Stephen