Re: Option to dump foreign data in pg_dump

> On 28 Jun 2019, at 17:30, Tom Lane <tgl@sss.pgh.pa.us> wrote:


> > Yeah, I think the feature as-proposed is a shotgun that's much more likely
> > to cause problems than solve them.  Almost certainly, what people would
> > really need is the ability to dump individual foreign tables' data not
> > everything.  (I also note that the main reason for "dump everything",
> > namely to get a guaranteed-consistent snapshot, isn't really valid for
> > foreign tables anyhow.)


I think this is sort of key here, the consistency guarantees are wildly
different.  A note about this should perhaps be added to the docs for the
option discussed here?

> On 28 Jun 2019, at 19:55, Luis Carril <luis.carril@swarm64.com> wrote:


> What about providing a list of FDW servers instead of an all or nothing option? In that way the user really has to do a conscious decision to dump the content of the foreign tables for a specific server, this would allow distinction if multiple FDW are being used in the same DB.

I think this is a good option, the normal exclusion rules can then still apply
in case not everything from a specific server is of interest.

cheers ./daniel