Re: Skipping logical replication transactions on subscriber side

On Tue, Aug 17, 2021 at 2:35 PM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
>
> On Tue, Aug 17, 2021 at 10:46 AM Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
> >
> > On Mon, Aug 16, 2021 at 5:30 PM Greg Nancarrow <gregn4422(at)gmail(dot)com> wrote:
> > >
> > > On Mon, Aug 16, 2021 at 5:54 PM houzj(dot)fnst(at)fujitsu(dot)com
> > > <houzj(dot)fnst(at)fujitsu(dot)com> wrote:
> > > >
> > > > Here is another comment:
> > > >
> > > > +char *
> > > > +logicalrep_message_type(LogicalRepMsgType action)
> > > > +{
> > > > ...
> > > > + case LOGICAL_REP_MSG_STREAM_END:
> > > > + return "STREAM END";
> > > > ...
> > > >
> > > > I think most the existing code use "STREAM STOP" to describe the
> > > > LOGICAL_REP_MSG_STREAM_END message, is it better to return "STREAM STOP" in
> > > > function logicalrep_message_type() too ?
> > > >
> > >
> > > +1
> > > I think you're right, it should be "STREAM STOP" in that case.
> >
> > It's right that we use "STREAM STOP" rather than "STREAM END" in many
> > places such as elog messages, a callback name, and source code
> > comments. As far as I have found there are two places where we’re
> > using "STREAM STOP": LOGICAL_REP_MSG_STREAM_END and a description in
> > doc/src/sgml/protocol.sgml. Isn't it better to fix these
> > inconsistencies in the first place? I think “STREAM STOP” would be
> > more appropriate.
> >
>
> I think keeping STREAM_END in the enum 'LOGICAL_REP_MSG_STREAM_END'
> seems to be a bit better because of the value 'E' we use for it.

But I think we don't care about the actual value of
LOGICAL_REP_MSG_STREAM_END since we use the enum value rather than
'E'?

Regards,

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