Re: ISBN/ISSN/ISMN/EAN13 module - Mailing list pgsql-hackers

From mdean
Subject Re: ISBN/ISSN/ISMN/EAN13 module
Date
Msg-id 44EA5396.5010409@xn1.com
Whole thread Raw
In response to Re: ISBN/ISSN/ISMN/EAN13 module  ("Jeremy Kronuz" <kronuz@hotmail.com>)
List pgsql-hackers
Jeremy Kronuz wrote:

> I suppose having it to replace the current contrib/isbn would be a 
> good option, this 13 digits ISBN will be the standard by 2007, and 
> some publishers are already issuing 13 digit ISBN numbers since last year.
>  
> The module I created uses int64 instead of strings, for the numbers, 
> and thus the performance might be better too, though I haven't tested 
> for speed.
> Please, let me know if it will be included as a contrib, as I have 
> updated the ISBN range numbers to include the most recent ones.
>  

I do hope that your algorithm for generating 13 digits from 10 has been 
validated with isbn.org, since all the check digits will change.  I 
believe it is crucial for postgresql to generate isbn codes in both 10 
and 13 digits, and in the two separate ways required of publishers on 
their bar codes, with just the 10 digit input.  This is just a special 
case for the overall classification system, so the initial 3 digit code 
for book publishers should not be hard wired.  (I know, as very 
competent engineers you have thought of all this, I am just being 
obsessive.)

Incidentally, we are looking to publish manuscripts across a widerange 
of subject areas, so if anyone has anything not committed to the "big 
names" let me know.  We are not a vanity publisher and our cotract 
provides for 20 percent royalties.  We publish under the Cretive Commons 
License.  Our newest book "Chess for Bright Children of any age" is 
forthcoming.  We got the idea for the title from the New Testament.
MIchael


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