two-column primary key (not the typical question)

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От	Chip Nowacek
Тема	two-column primary key (not the typical question)
Дата	6 июля 2012 г. 23:00:54
Msg-id	CAFsC43EeKenOGKNDoJqLMS4VZQnFTNEsnhYUySHyZODSmveVpQ@mail.gmail.com обсуждение исходный текст
Ответы	Re: two-column primary key (not the typical question) Re: two-column primary key (not the typical question)
Список	pgsql-general

I need a suggestion. I need a two-column primary key that does not depend on the order of the entries. That is, for the purposes of the key:

PKColA PKColB

foo bar

bar foo

is not valid.

Any help would be appreciated.

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