From: | Don Yury <yura(at)vpcit(dot)ru> |
---|---|
To: | pgsql-general(at)postgreSQL(dot)org |
Subject: | oid as a reference |
Date: | 1999-07-05 06:35:56 |
Message-ID: | 3780524C.A4F90380@vpcit.ru |
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Lists: | pgsql-general |
Hi All.
I am just designing my first database in postgres and have a question -
would it be proper if I use oid for referential integrity? In all
examples I saw something like
Create table master(
id int4,
...
);
Create table detail(
master_id int4,
....
);
CREATE TRIGGER bt BEFORE INSERT OR UPDATE ON detail FOR EACH ROW
EXECUTE PROCEDURE
check_primary_key ('REFB', 'A', 'ID');
But since each object in database have an oid as an indenificator, we
can:
[- create master table without id]
- create unique index on oid for master table
- in the field master_id of detail table store oid of appropriate master
object
- create function check_oid() in order to use it in trigger for
referential integrity
Would it be a proper design?
Sincerely yours, Yury.
don.web-page.net, ICQ 11831432
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