RE: [GENERAL] OID
От
Jackson, DeJuan
Тема
RE: [GENERAL] OID
Дата
Msg-id
F10BB1FAF801D111829B0060971D839F5E9116@cpsmail
Список
> I'm designing a database schema and have questions about OID. > > First, I assume that OID are system assigned? [yes] yes - correct assumption > Second, Can I use OID as a primary key? [no] yes(qualified) - incorrect assumption Currently PostgreSQL doesn't really do anything special with primary key columns, so you can achieve the same affect, by declaring a UNIQUE INDEX on the same columns. > Third, Is the OID invariant under an import/export process? [no] yes(qualified) - incorrect assumption see: pg_dump --help (specifically the -o option). > Fourth, Can I create table with an OID type for referencing another > table? [no] yes - incorrect assumption This is part of the reason for the -o switch in pg_dump. > I puy my assumed answers in brackets. Please let me know if I > am mistaken. Well, only 75%. > Thanks! You're welcome. > Clark -DEJ
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