Re: Identify missing publications from publisher while create/alter subscription.

On Thu, Feb 10, 2022 at 3:15 PM Ashutosh Sharma <ashu.coek88@gmail.com> wrote:
>
> On Wed, Feb 9, 2022 at 11:53 PM Euler Taveira <euler@eulerto.com> wrote:
> >
> > On Wed, Feb 9, 2022, at 12:06 PM, Ashutosh Sharma wrote:
> >
> > Just wondering if we should also be detecting the incorrect conninfo
> > set with ALTER SUBSCRIPTION command as well. See below:
> >
> > -- try creating a subscription with incorrect conninfo. the command fails.
> > postgres=# create subscription sub1 connection 'host=localhost
> > port=5490 dbname=postgres' publication pub1;
> > ERROR:  could not connect to the publisher: connection to server at
> > "localhost" (::1), port 5490 failed: Connection refused
> >     Is the server running on that host and accepting TCP/IP connections?
> > connection to server at "localhost" (127.0.0.1), port 5490 failed:
> > Connection refused
> >     Is the server running on that host and accepting TCP/IP connections?
> >
> > That's because by default 'connect' parameter is true.
> >
>
> So can we use this option with the ALTER SUBSCRIPTION command. I think
> we can't, which means if the user sets wrong conninfo using ALTER
> SUBSCRIPTION command then we don't have the option to detect it like
> we have in case of CREATE SUBSCRIPTION command. Since this thread is
> trying to add the ability to identify the wrong/missing publication
> name specified with the ALTER SUBSCRIPTION command, can't we do the
> same for the wrong conninfo?

I felt this can be extended once this feature is committed. Thoughts?

Regards,
Vignesh