From: Andreas Gaab <A.Gaab@scanlab.de>
To: gvim <gvimrc@gmail.com>
Cc: pgsql sql <pgsql-sql@postgresql.org>
Subject: Re: UNIQUE on everything except primary key
Date: Thu, 3 Feb 2011 16:48:23 +0100
Message-ID: <48DA836F3865C54B8FBF424A3B775AF6671A683922@Exchange-Server> (raw)
In-Reply-To: <4D4ACD57.1090508@gmail.com>
References: <4D4ACD57.1090508@gmail.com>
Did you check check constraints?
http://www.postgresql.org/docs/8.4/static/ddl-constraints.html
Best
Andreas
-----Ursprüngliche Nachricht-----
Von: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org] Im Auftrag von gvim
Gesendet: Donnerstag, 3. Februar 2011 16:44
An: pgsql sql
Betreff: [SQL] UNIQUE on everything except primary key
I have a table with 11 columns and want to eliminate duplication on INSERTs. What's the best method? The obvious solution would be to create a UNIQUE index on everything except the primary key - 'id' - but that's a 10-column index and doesn't sound very efficient. Am I missing something more obvious?
gvim
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To: pgsql-sql@postgresql.org
Cc: A.Gaab@scanlab.de, gvimrc@gmail.com
Subject: Re: UNIQUE on everything except primary key
In-Reply-To: <48DA836F3865C54B8FBF424A3B775AF6671A683922@Exchange-Server>
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