Re: ISN was: Core Extensions relocation

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Peter Geoghegan <peter(at)2ndquadrant(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: ISN was: Core Extensions relocation
Date: 2011-11-16 03:40:49
Message-ID: 10453.1321414849@sss.pgh.pa.us
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Peter Geoghegan <peter(at)2ndquadrant(dot)com> writes:
> If we can't put isn out of its misery, a sensible compromise would be
> to rip out the prefix enforcement feature so that, for example, ISBN13
> behaved exactly the same as EAN13.

That might be a reasonable compromise. Certainly the check-digit
calculation is much more useful for validity checking than the prefix
checking.

regards, tom lane

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