Re: Drawbacks of using BYTEA for PK?

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От Karsten Hilbert
Тема Re: Drawbacks of using BYTEA for PK?
Дата
Msg-id 20040114094702.A625@hermes.hilbert.loc
обсуждение исходный текст
Ответ на Re: Drawbacks of using BYTEA for PK?  (Alex Satrapa <alex@lintelsys.com.au>)
Ответы Re: Drawbacks of using BYTEA for PK?  (Karsten Hilbert <Karsten.Hilbert@gmx.net>)
Список pgsql-general
> >Remember that /sbin/ifconfig output usually include MAC address too. Not
> >that MAC addresses are 100% unique, but that should increase the
> >uniqueness.
>
> How do you increase uniqueness?  Either a value is unique or it isn't -
It increases the *likelihood* of uniqueness, IOW the expected
collision frequency.

> if you've got multiple hosts on the network with the same network
> address, you're in big trouble!
He is talking about the MAC which in itself is supposed to be
globally unique. Nothing to do with IP numbers.

Karsten
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