From: | Jeff MacDonald <jeff(at)pgsql(dot)com> |
---|---|
To: | Josh Berkus <josh(at)agliodbs(dot)com> |
Cc: | sqllist <pgsql-sql(at)postgresql(dot)org>, Jeff MacDonald <jeff(at)pgsql(dot)com> |
Subject: | Re: OID Perfomance - Object-Relational databases |
Date: | 2000-10-04 11:43:46 |
Message-ID: | Pine.BSF.4.21.0010032334080.24435-100000@rage.hub.org |
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Thread: | |
Lists: | pgsql-sql |
Hi Josh,
I didn't get right tho this, because well.. you asked
the list, i figured i'd give them a chance first. and they've
answered the same as i would have..
> Because it's a very elegant solution to my database structure issues,
> I'm using OID's extensively as referents and foriegn keys. However, I
> wanted to see if others had previous experience in this (answer as many
> as you like):
>
> 1. Is there a performance loss on searches and joins when I use the OID
> as a liniking field as opposed to a SERIAL column?
yes, because indexes are automatcally created on serials.
> 2. Can I define my own index on the OIDs of a table?
sure, create index oid_idx on table(oid);
Jeff MacDonald,
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