Re: [17] CREATE SUBSCRIPTION ... SERVER

On Wed, Aug 30, 2023 at 9:00 PM Jeff Davis <pgsql@j-davis.com> wrote:
>
> On Wed, 2023-08-30 at 19:11 +0530, Ashutosh Bapat wrote:
> > Are you suggesting that SERVERs created with FDW can not be used as
> > publishers?
>
> Correct. Without that, how would the subscription know that the FDW
> contains valid postgres connection information? I suppose it could
> create a connection string out of the options itself and do another
> round of validation, is that what you had in mind?

The server's FDW has to be postgres_fdw. So we have to handle the
awkward dependency between core and postgres_fdw (an extension). The
connection string should be created from options itself. A special
user mapping for replication may be used. That's how I see it at a
high level.

--
Best Wishes,
Ashutosh Bapat