From: abbas alizadeh <ramkly@yahoo.com>
To: Erik Wienhold <ewie@ewie.name>
Cc: Scott Ribe <scott_ribe@elevated-dev.com>
Cc: Teju Jakkidi vlogs <teja.jakkidi05@gmail.com>
Cc: Holger Jakobs <holger@jakobs.com>
Cc: pgsql-admin@lists.postgresql.org
Subject: Re: Duplicate data even with primary keys enabled
Date: Sat, 29 Oct 2022 15:20:58 +0400
Message-ID: <C254B8F9-9779-4F8F-BDAB-C55E7088FA7C@yahoo.com> (raw)
In-Reply-To: <2102110489.726355.1667002718732@office.mailbox.org>
References: <2102110489.726355.1667002718732@office.mailbox.org>
Hi all.
I faced the same issue last week.
We had duplicated records on primary key.
Postgresql version is 14.4
Sent from my iPhone
> On 29 Oct 2022, at 4:18 AM, Erik Wienhold <ewie@ewie.name> wrote:
>
>
>>
>> On 28/10/2022 22:50 CEST Scott Ribe <scott_ribe@elevated-dev.com> wrote:
>>
>> A corrupted index could allow that to happen by failing to catch the duplicate
>> insert. I suppose it might also be able to cause the same row to be returned
>> multiple times--although I have personally only ever seen corrupted indexes
>> cause rows to not be found.
>
> I think it should be possible to tell those two cases apart by looking at system
> column ctid. The ctid should be the same for duplicate rows if the same row is
> found multiple times in the index. Different ctid if the corrupted index
> allowed INSERT with duplicates.
>
> --
> Erik
>
>
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Subject: Re: Duplicate data even with primary keys enabled
In-Reply-To: <C254B8F9-9779-4F8F-BDAB-C55E7088FA7C@yahoo.com>
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