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Re: UUID data format 4x-4x-4x-4x-4x-4x-4x-4x

From: Kenneth Marshall <ktm(at)rice(dot)edu>
To: Zeugswetter Andreas ADI SD <Andreas(dot)Zeugswetter(at)s-itsolutions(dot)at>
Cc: Andrew Sullivan <ajs(at)crankycanuck(dot)ca>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: UUID data format 4x-4x-4x-4x-4x-4x-4x-4x
Date: 2008-02-28 19:20:34
Message-ID: 20080228192034.GA15497@it.is.rice.edu (view raw or flat)
Thread:
Lists: pgsql-hackers
On Thu, Feb 28, 2008 at 08:06:46PM +0100, Zeugswetter Andreas ADI SD wrote:
> 
> > > Well, I guess the question is: if we don't offer some builtin way to
> render 
> > > non-standard formats built into company products, will those
> companies fix 
> > > their format or just not use PostgreSQL?
> > 
> > Well, there is an advantage that Postgres has that some others don't:
> you
> > can extend Postgres pretty easily.  That suggests to me a reason to be
> > conservative in what we "build in".  This is consistent with the
> principle,
> > "Be conservative in what you send, and liberal in what you accept."
> 
> Well, then the uuid input function should most likely disregard all -,
> and accept the 4x-, 8x- formats and the like on input.
> 
> Andreas
> 
> 
We need to support the standard definition. People not using the standard
need to know that and explicitly acknowledge that by implementing the
conversion process themselves. Accepting random input puts a performance
hit on everybody following the standard. It is the non-standard users who
should pay that cost. 

Cheers,
Ken

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