Re: OID Perfomance - Object-Relational databases - Mailing list pgsql-sql

Aren't OIDs just integers? Isn't this limit just the limit of the value an
int4 can hold?

2,147,483,647 is the max for an int4 (I think) so at 500 million a day
you're looking at more like  4.29 (and change) days

If I'm correct in all the above, there wouldn't be any way to increase the
limit without the server running on a 64-bit machine (which you could do, I
guess)..

*shrug* just some thoughts..

-Mitch

----- Original Message -----
From: "Michael Ansley" <Michael.Ansley@intec-telecom-systems.com>
To: <josh@agliodbs.com>; "sqllist" <pgsql-sql@postgresql.org>
Cc: "Jeff MacDonald" <jeff@pgsql.com>
Sent: Tuesday, October 03, 2000 9:17 AM
Subject: RE: [SQL] OID Perfomance - Object-Relational databases


> Hi, Josh,
>
> In fact, the last point about OIDs is particularly pertinent, because we
are
> expected to process up to 500 million records daily, thus exhausting the
> limit in, um, eight days.
>
> Is anybody aware of when this limit will be raised.
>
> Cheers...
>
> >>   -----Original Message-----
> >>   From: Josh Berkus [mailto:josh@agliodbs.com]
> >>   Sent: 03 October 2000 17:06
> >>   To: sqllist
> >>   Cc: Jeff MacDonald
> >>   Subject: [SQL] OID Perfomance - Object-Relational databases
> >>
> >>
> >>   Folks,
> >>
> >>   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?
> >>
> >>   2. Can I define my own index on the OIDs of a table?
> >>
> >>   3. What is the difference between these two DDL statements
> >>   in terms of
> >>   data access and PG-SQL performance (assuming that table clients has
> >>   already been defined):
> >>
> >>   CREATE TABLE client_addresses AS (
> >>   client_OID OID REFERENCES clients,
> >>   address1 VARCHAR (30),
> >>   address2 VARCHAR (30),
> >>   address3 VARCHAR (30)
> >>   )
> >>   and:
> >>   CREATE TABLE client_addresses AS (
> >>   client clients,
> >>   address1 VARCHAR (30),
> >>   address2 VARCHAR (30),
> >>   address3 VARCHAR (30)
> >>   )
> >>
> >>   (This is Michael's questions rephrased)
> >>
> >>   4. Int4 seems kinda small to me for a value that needs to enumerate
> >>   every single database object.  Within a couple of years of
> >>   heavy use, a
> >>   customer-transaction database could easily exceed 2 billion objects
> >>   created (and destroyed).  Are there plans to expand this to Int8?
> >>
> >>   -Josh Berkus
> >>
> >>   P.S. My aplolgies if I've already posted these questions; I never
> >>   received them back from the list mailer.
> >>
> >>
> >>
> >>   --
> >>   ______AGLIO DATABASE SOLUTIONS___________________________
> >>                                           Josh Berkus
> >>      Complete information technology      josh@agliodbs.com
> >>       and data management solutions       (415) 436-9166
> >>      for law firms, small businesses       fax  436-0137
> >>       and non-profit organizations.       pager 338-4078
> >>                           San Francisco
> >>
>