Re: Skipping logical replication transactions on subscriber side

On Fri, Jan 21, 2022 at 1:20 PM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
>
> On Tue, Jan 18, 2022 at 9:21 AM Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
> >
> > On Tue, Jan 18, 2022 at 12:37 PM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> > >
> > > On Tue, Jan 18, 2022 at 8:34 AM tanghy(dot)fnst(at)fujitsu(dot)com
> > > <tanghy(dot)fnst(at)fujitsu(dot)com> wrote:
> > > >
> > > > On Mon, Jan 17, 2022 2:18 PM Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
> > > > >
> > > >
> > > > 2) The following two places are not consistent in whether "= value" is surround
> > > > with square brackets.
> > > >
> > > > +ALTER SUBSCRIPTION <replaceable class="parameter">name</replaceable> SKIP ( <replaceable class="parameter">skip_option</replaceable> [= <replaceable class="parameter">value</replaceable>] [, ... ] )
> > > >
> > > > + <term><literal>SKIP ( <replaceable class="parameter">skip_option</replaceable> = <replaceable class="parameter">value</replaceable> [, ... ] )</literal></term>
> > > >
> > > > Should we modify the first place to:
> > > > +ALTER SUBSCRIPTION <replaceable class="parameter">name</replaceable> SKIP ( <replaceable class="parameter">skip_option</replaceable> = <replaceable class="parameter">value</replaceable> [, ... ] )
> > > >
> > > > Because currently there is only one skip_option - xid, and a parameter must be
> > > > specified when using it.
> > > >
> > >
> > > Good observation. Do we really need [, ... ] as currently, we support
> > > only one value for XID?
> >
> > I think no. In the doc, it should be:
> >
> > ALTER SUBSCRIPTION name SKIP ( skip_option = value )
> >
>
> In the latest patch, I see:
> + <varlistentry>
> + <term><literal>SKIP ( <replaceable
> class="parameter">skip_option</replaceable> = <replaceable
> class="parameter">value</replaceable> [, ... ] )</literal></term>
>
> What do we want to indicate by [, ... ]? To me, it appears like
> multiple options but that is not what we support currently.

You're right. It's an oversight.

Regards,

--
Masahiko Sawada
EDB: https://www.enterprisedb.com/