Andrew Sullivan escreveu:
> On Thu, May 12, 2005 at 01:07:00PM -0600, Dennis.Jiang@thomson.com wrote:
>
>>Does Postgresql have a similar pseudo-column "ROWNUM" as Oracle? If
>>so, we can write the following query:
>
>
> No. What is the purpose of your query? You could use ORDER BY and
> LIMIT..OFFSET to do what you want. I think.
The problem is probably speed. I have done a lot of tests, and when
OFFSET gets to a few thousands on a multimega-recs database, it gets
very very slow... Is there any other to work around that?
Alain
