From: Guillaume Cottenceau <gc@mnc.ch>
To: Tobias Brox <tobias@nordicbet.com>
Cc: Arnaud Lesauvage <thewild@freesurf.fr>
Cc: pgsql-performance@postgresql.org
Subject: Re: Poor performance on very simple query ?
Date: 03 Oct 2006 14:27:40 +0200
Message-ID: <87zmcdposj.fsf@meuh.mnc.lan> (raw)
In-Reply-To: <20061003121709.GF30211@oppetid.no>
References: <45224896.7040708@freesurf.fr>
<20061003121004.GC30211@oppetid.no>
<20061003121109.GD30211@oppetid.no>
<45225407.7090805@freesurf.fr>
<20061003121709.GF30211@oppetid.no>
Tobias Brox <tobias 'at' nordicbet.com> writes:
> Oh - it is. How can you have a default value on a primary key? Will it
you can but it is useless :)
foo=# create table bar (uid int primary key default 0, baz text);
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "bar_pkey" for table "bar"
CREATE TABLE
foo=# insert into bar (baz) values ('');
INSERT 217426996 1
foo=# insert into bar (baz) values ('');
ERROR: duplicate key violates unique constraint "bar_pkey"
--
Guillaume Cottenceau
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To: pgsql-performance@postgresql.org
Cc: gc@mnc.ch, tobias@nordicbet.com, thewild@freesurf.fr
Subject: Re: Poor performance on very simple query ?
In-Reply-To: <87zmcdposj.fsf@meuh.mnc.lan>
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