RE: speed up a logical replica setup

From: "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>
To: 'Peter Eisentraut' <peter(at)eisentraut(dot)org>, Euler Taveira <euler(at)eulerto(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
Cc: "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Shlok Kyal <shlok(dot)kyal(dot)oss(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Andres Freund <andres(at)anarazel(dot)de>, Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>
Subject: RE: speed up a logical replica setup
Date: 2024-01-25 10:16:34
Message-ID: TY3PR01MB988961A9361F7C2DF5955F70F57A2@TY3PR01MB9889.jpnprd01.prod.outlook.com
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Dear Peter,

Thanks for giving your idea!

> > Subscriber has a different meaning of subscription. Subscription is an SQL
> > object. Subscriber is the server (node in replication terminology) where the
> > subscription resides. Having said that pg_createsubscriber doesn't seem
> > a bad
> > name because you are creating a new subscriber. (Indeed, you are
> > transforming /
> > converting but "create" seems closer and users can infer that it is a
> > tool to
> > build a new logical replica.
>
> That makes sense.
>
> (Also, the problem with "convert" etc. is that "convertsubscriber" would
> imply that you are converting an existing subscriber to something else.
> It would need to be something like "convertbackup" then, which doesn't
> seem helpful.)
>
> > I think "convert" and "transform" fit for this case. However, "create",
> > "convert" and "transform" have 6, 7 and 9 characters, respectively. I
> > suggest
> > that we avoid long names (subscriber already has 10 characters). My
> > preference
> > is pg_createsubscriber.
>
> That seems best to me.

Just FYI - I'm ok to change the name to pg_createsubscriber.

Best Regards,
Hayato Kuroda
FUJITSU LIMITED

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