Re: using OID as primary key
От
darcy@druid.net (D'Arcy J.M. Cain)
Тема
Re: using OID as primary key
Дата
Msg-id
m13FdJf-000AXVC@druid.net
Ответ на
Re: using OID as primary key (JanWieck@t-online.de (Jan Wieck))
Список
Дерево обсуждения
using OID as primary key Markus Wagner <wagner@imsd.uni-mainz.de>
Re: using OID as primary key JanWieck@t-online.de (Jan Wieck)
Re: using OID as primary key darcy@druid.net (D'Arcy J.M. Cain)
Thus spake Jan Wieck > > are there any disadvantages of using OID as the primary key for any > > table? > > What about referencing external tuples using their OIDs? > > Currently OID is not supported for references. Has to do with > some checks done in the RI triggers, using SPI functions. > We're thinking about a solution... Also, don't forget about the dump/restore issue. You have to remember to dump OIDs with "-o" or else all your references will be trashed. Personally I would avoid it. Adding a serial type almost gives you the same thing anyway. OIDs are useful in system tables and temporarily in programs when dealing with tables without primary keys. -- D'Arcy J.M. Cain | Democracy is three wolves http://www.druid.net/darcy/ | and a sheep voting on +1 416 425 1212 (DoD#0082) (eNTP) | what's for dinner.
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