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From: Hayato Kuroda (Fujitsu) <[email protected]>
To: 'Robert Haas' <[email protected]>
Cc: Ian Lawrence Barwick <[email protected]>
Cc: pgsql-hackers <[email protected]>
Subject: RE: Have pg_basebackup write "dbname" in "primary_conninfo"?
Date: Tue, 20 Feb 2024 12:28:29 +0000
Message-ID: <TYCPR01MB1207777150173002564A753B8F5502@TYCPR01MB12077.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <CA+TgmoYfagyp5AvKMfGpRUgXNJZ0ymuqiWTzOc2tV_ZMM0UkCA@mail.gmail.com>
References: <CAB8KJ=hdKdg+UeXhReeHpHA6N6v3e0qFF+ZsPFHk9_ThWKf=2A@mail.gmail.com>
	<TYCPR01MB120773419F8EDA8C123D6D1BAF5502@TYCPR01MB12077.jpnprd01.prod.outlook.com>
	<CA+TgmoYfagyp5AvKMfGpRUgXNJZ0ymuqiWTzOc2tV_ZMM0UkCA@mail.gmail.com>

Dear Robert,

> Seems weird to me. You don't use dbname=replication to ask for a
> replication connection, so why would we ever end up with that
> anywhere? And especially in only one of two such closely related
> cases?

Just FYI - here is an extreme case. And note that I have applied proposed patch.

When `pg_basebackup -D data_N2 -R` is used:
```
primary_conninfo = 'user=hayato ... dbname=hayato ...
```

But when `pg_basebackup -d "" -D data_N2 -R` is used:
```
primary_conninfo = 'user=hayato ... dbname=replication
```

Best Regards,
Hayato Kuroda
FUJITSU LIMITED
https://www.fujitsu.com/ 

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