user account uniqueness

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От Dennis Gearon
Тема user account uniqueness
Дата
Msg-id IGFC604ROQLZX3V63POZT2XFAE976QO.3e44020a@cal-lab
обсуждение исходный текст
Список pgsql-general
I have a site I'm building that can have the following types of users:

    Those that have email accounts
    Those that don't.

I collect address information, phone numbers, full names, (all normalized at this point)

    I can't collect:

        credit card info
        driver's license numbers
        blood type :-)

How can I assure uniqueness and non duplication of users if I keep all the users in the same table?





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