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Re: Re: New data type: uniqueidentifier

From: Alex Pilosov <alex(at)pilosoft(dot)com>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: "Dmitry G(dot) Mastrukov" <dmitry(at)taurussoft(dot)org>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Re: New data type: uniqueidentifier
Date: 2001-07-03 15:52:31
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Lists: pgsql-hackers
On Tue, 3 Jul 2001, Peter Eisentraut wrote:

>> Dmitry's stuff contains both datatype (uniqueidentifier), a function to
>> generate a new object of that type (newid), and a set of functions to
>> implement comparison operators for that type.

> It would be much simpler if you stored the unique id in varchar or text.

UUIDs have specific rules for comparison of them. Its so much easier to
compare them via a<b than uuid_lt(a,b). If one wanted to make a meaningful
index on uuid value, normal ordering of varchar would not suffice...


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