Re: OID - constantly increasing/ what about the gaps?

Martijn van Oosterhout <kleptog@cupid.suninternet.com>

From: Martijn van Oosterhout <kleptog@cupid.suninternet.com>
To: Thomas Weholt <thomas@cintra.no>
Cc: pgsql-novice@postgresql.org
Date: 2000-07-03T14:03:06Z
Lists: pgsql-novice
Thomas Weholt wrote:
> 
> Hi,
> 
> A simple, almost stupid, question :
> 
> Does the OIDs allways, without exception no matter what I do,
> increase?

Maybe, but maybe not. Consider them opaque object with no other
meaning.

> If I insert a lot of records, delete some of them, inserted more the
> OID would be :
> 
> ( about ) 18000 + number of inserted + more records
> 
> I mean, the gaps from the deleted records won`t be filled? So I can
> use this as a measure for new records for example. I could keep track
> of OIDs when users access a page generated with data from my database,
> when they return I give them all the rows with OIDs higher than the
> one I stored at their last visit.
> 
> Do I make sense? Damn, I`m tired!

Maybe you want a sequence or the serial type?

-- 
Martijn van Oosterhout <kleptog@cupid.suninternet.com>
http://cupid.suninternet.com/~kleptog/