Re: pg_createsubscriber: allow duplicate publication names

> On Jun 2, 2026, at 18:01, Hayato Kuroda (Fujitsu) <kuroda.hayato@fujitsu.com> wrote:
> 
> Dear Amit,
> 
>> Can't we use --replication-slot=name to avoid this ERROR? I mean use
>> different replication slot names.
> 
> Are you saying the below case, right? It can work.
> 
> ```
> $ pg_createsubscriber -D data_sta/ -P 'user=postgres port=5432' -d postgres --subscription sub --replication-slot=slot1 -d testdb --subscription sub --replication-slot=slot2 -U postgres
> ```
> 
> BTW; slot creations are tried before the standby promotes, thus there may be a chance
> user read the error message, change the subscription name, and retry. But I still
> think we should guard the combination, which means it's too late for PG19.
> 

Hi Hayato-san, thanks for the comment. I’ll keep it in my notes for later reference.

BTW, I just saw someone has added this patch to the Open Items list.

Best regards,
--
Chao Li (Evan)
HighGo Software Co., Ltd.
https://www.highgo.com/