Unique value over different servers

From: Per-Olof Pettersson <pgsql(at)peope(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Unique value over different servers
Date: 2001-05-28 03:51:58
Message-ID: 3B11CB5E.30809@peope.net
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I have two databases on two different servers.

I'd like to make a field that will be unique on both servers.

Is this possible. How do I accompish that. Is oid a good value to use?
Is there a function for it?

Best regards
Per-Olof Pettersson

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