From: Joshua D. Drake <jd@commandprompt.com>
To: Robins Tharakan <tharakan@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Varchar pkey instead of integer
Date: Tue, 20 May 2008 23:16:34 -0700
Message-ID: <4833BE42.5030409@commandprompt.com> (raw)
In-Reply-To: <36af4bed0805202240v5fbdd6bcv75643a6488cd1daf@mail.gmail.com>
References: <36af4bed0805202240v5fbdd6bcv75643a6488cd1daf@mail.gmail.com>
Robins Tharakan wrote:
> Hi,
> Now what I wanted to ask was whether its any different to have the
> primary-keys in such master tables as text/varchar rather than integer ?
> i.e. Can I use a character varying(10) and use the text 'million' /
> 'billion' instead of a serial / integer type ?
One should ask themselves why before can I. :)
If you want to use a varchar() for a primary key that is fine but make
it a natural key not an arbitrary number. If you are going to use
arbitrary numbers, use a serial or bigserial.
Joshua D. Drake
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To: pgsql-performance@postgresql.org
Cc: jd@commandprompt.com, tharakan@gmail.com
Subject: Re: Varchar pkey instead of integer
In-Reply-To: <4833BE42.5030409@commandprompt.com>
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