Re: Enhance 'pg_createsubscriber' to retrieve databases automatically when no database is provided.

From: Shubham Khanna <khannashubham1197(at)gmail(dot)com>
To: Peter Smith <smithpb2250(at)gmail(dot)com>
Cc: "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>
Subject: Re: Enhance 'pg_createsubscriber' to retrieve databases automatically when no database is provided.
Date: 2025-02-13 03:27:49
Message-ID: CAHv8RjKVRO6UFx74GA_EHbvdNsPeJ5Dbguxqb80H5m89X+_kiw@mail.gmail.com
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On Thu, Feb 13, 2025 at 4:48 AM Peter Smith <smithpb2250(at)gmail(dot)com> wrote:
>
> Some review comments for v7-0001
>
> ======
> src/bin/pg_basebackup/pg_createsubscriber.c
>
> 1.
> + /* Error if no databases were found on the source server */
> + if (num_rows == 0)
> + {
> + pg_log_error("no convertable databases found on the source server");
> + pg_log_error_hint("Ensure that there are non-template and
> connectable databases on the source server.");
> + PQclear(res);
> + disconnect_database(conn, false);
> + exit(1);
> + }
>
> 1a.
> The spelling is "convertible", not "convertable"
>
> ~
>
> 1b.
> What does "convertible databases" mean here, and will that term make
> sense to a user? How are we "converting" the source server databases;
> AFAIK we are simply connecting to them and adding publications.
>
> IMO a better choice of adjectives can be found below.
> "no suitable databases found..."
> "no appropriate databases found..."
> "no eligible databases found..."
> etc.
>

Fixed.

The attached patch contains the required changes.

Thanks and regards,
Shubham Khanna.

Attachment Content-Type Size
v8-0001-Enhance-pg_createsubscriber-to-fetch-and-append-a.patch application/octet-stream 15.1 KB

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