| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> | 
|---|---|
| To: | Freddy Villalba Arias <fvillalba(at)madrid(dot)bilbomatica(dot)es> | 
| Cc: | PostgreSQL JDBC Mailing List <pgsql-jdbc(at)postgresql(dot)org> | 
| Subject: | Re: default_with_oid | 
| Date: | 2004-04-26 15:44:34 | 
| Message-ID: | 200404261544.i3QFiYM02275@candle.pha.pa.us | 
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| Lists: | pgsql-jdbc | 
Freddy Villalba Arias wrote:
> Hello,
> 
>  
> 
> I've noticed that whenever I create a table, the DBMS is adding an OID
> column without my consent. I've also read that this behaviour can be
> modified (disabled) by setting the default_with_oid (to false, I
> suppose).
That option is only available in 7.5.  In earlier releases, you have to
create WITH OIDS or alter the table to now have oids.
> What is the OID column for? How (and where) can I find (and disable) the
> default_with_oid flag?
There is a flag only in 7.5, which will not be released for several
months.
The column gives a unique value to each row. Try SELECT oid FROM tab.
-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
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