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help / color / mirror / Atom feedFrom: Fujii Masao <[email protected]>
To: Hayato Kuroda (Fujitsu) <[email protected]>
To: David G. Johnston <[email protected]>
Cc: Ashutosh Bapat <[email protected]>
Cc: [email protected] <[email protected]>
Cc: 'vignesh C' <[email protected]>
Subject: Re: pg_recvlogical requires -d but not described on the documentation
Date: Wed, 19 Mar 2025 01:37:19 +0900
Message-ID: <[email protected]> (raw)
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On 2025/03/18 18:17, Hayato Kuroda (Fujitsu) wrote:
> Dear Fujii-san, David,
>
>>> BTW, I'm curious why --dbname isn't required for the --drop-slot action.
>>
>> I'm analyzing around here...
>>
>
> Actually, replication slots can be dropped from another database where it created,
> or even from the streaming replication connection.
> I forked the new thread which fixes the description [1].
>
> Based on the fact, there are two approaches to fix:
>
> 1. Fix not to raise fatal error like:
It looks like commit 0c013e08cfb introduced a bug that causes "pg_recvlogical --drop-slot"
without --dbname to check whether it's connected to a specific database and fail if it's not.
This commit was added before 9.5, while pg_recvlogical was introduced in 9.4. On my env,
"pg_recvlogical --drop-slot" without --dbname worked as expected in 9.4 but started
failing in 9.5 or later.
So, I think the proper fix is to avoid raising a fatal error even when not connected to
a specific database in --drop-slot action.
Regards,
--
Fujii Masao
Advanced Computing Technology Center
Research and Development Headquarters
NTT DATA CORPORATION
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