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Re: BUG #2379: Duplicate pkeys in table

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Philip Warner <pjw(at)rhyme(dot)com(dot)au>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #2379: Duplicate pkeys in table
Date: 2006-04-06 12:12:31
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-bugs
Philip Warner wrote:

> We have an intermittent bug that occurs on a table which is updated several
> times per second. The bug occurs every few days/weeks. It is usually
> preceeded by a "tuple concurrently updated" messages, but I could not swear
> it is always preceeded by it.
> The result of the bug is demonstrated by:
> select id,count(*) from xxx group by id having count(*)>1;
>   id   | count
> -------+-------
>  24613 |     6
> (1 row)

Please do a

SELECT xmin, xmax, cmin, cmax FROM xxx where id = 24613;

if you still have that particular manifestation.

Alvaro Herrera                      
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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Subject: Re: BUG #2379: Duplicate pkeys in table
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Subject: Re: BUG #2372: dblink_exec doesn't return. NEVER!

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