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Re: foreign SERIAL keys in weak entity primary keys - Mailing list pgsql-general

From Tom Lane
Subject Re: foreign SERIAL keys in weak entity primary keys
Date
Msg-id 10994.1047269536@sss.pgh.pa.us
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In response to foreign SERIAL keys in weak entity primary keys  ("Thomas Hood" <s0096184@sms.ed.ac.uk>)
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"Thomas Hood" <s0096184@sms.ed.ac.uk> writes:
> The table Inventory has tuples which have minimal candidate key of (IID,
> PackSize), yet for some reason it insists on making IID * WID unique
> columns!

In versions before 7.3, SERIAL implies UNIQUE.  If you don't like that,
update ...

            regards, tom lane

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