From: Richard Huxton <dev@archonet.com>
To: Sergey Konoplev <gray.ru@gmail.com>
Cc: Stephen Frost <sfrost@snowman.net>
Cc: Anibal David Acosta <aa@devshock.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: unlogged tables
Date: Mon, 14 Nov 2011 08:58:15 +0000
Message-ID: <4EC0D827.8090601@archonet.com> (raw)
In-Reply-To: <CAL_0b1t02q77ft2JWdjMv8q4vaGm=x__K0rzVkpNSvSy2-SjzA@mail.gmail.com>
References: <005501cca0ad$b9478440$2bd68cc0$@devshock.com>
<20111111201822.GN24234@tamriel.snowman.net>
<CAL_0b1t02q77ft2JWdjMv8q4vaGm=x__K0rzVkpNSvSy2-SjzA@mail.gmail.com>
On 14/11/11 08:10, Sergey Konoplev wrote:
> Hi,
>
> On 12 November 2011 00:18, Stephen Frost<sfrost@snowman.net> wrote:
>> In a crash, unlogged tables are automatically truncated.
>
> BTW I wonder what for they are truncated in a crash case?
Because they bypass the transaction-log (WAL), hence unlogged.
There's no way to know whether there were partial updates applied when
the system restarts.
--
Richard Huxton
Archonet Ltd
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To: pgsql-performance@postgresql.org
Cc: dev@archonet.com, gray.ru@gmail.com, sfrost@snowman.net, aa@devshock.com
Subject: Re: unlogged tables
In-Reply-To: <4EC0D827.8090601@archonet.com>
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