Re: Alternative to serial primary key

From: "Sander Steffann" <s(dot)steffann(at)computel(dot)nl>
To: "'D'Arcy J(dot)M(dot) Cain'" <darcy(at)druid(dot)net>, "'David Clarke'" <pigwin32(at)gmail(dot)com>
Cc: <pgsql-sql(at)postgresql(dot)org>
Subject: Re: Alternative to serial primary key
Date: 2006-07-07 13:26:47
Message-ID: 2B1A983EDCEC3447B22632B64F72646014EB1B@bill.office.computel.nl
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Hi D'Arcy,

> It's not that I think that the primary key should never have
> meaning in the database (I use the two letter country code as
> the PK in my country table for example) I just think that
> it's dangerous ground and should be tread very carefully.

You are right. I now realize that I have done exactly the same thing in my
database designs :) In 95+% of the cases I would choose a serial, but this
is a good counter-example.

Thanks for making me think :)
Sander

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