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Re: Speed with offset clause

This is a discussion on Re: Speed with offset clause within the Pgsql Performance forums, part of the PostgreSQL category; --> On 6/24/05, Yves Vindevogel <yves.vindevogel@implements.be> wrote: > So, when I want the last page, which is: 600k / 25 ...


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Old 04-18-2008, 11:57 AM
hubert depesz lubaczewski
 
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Default Re: Speed with offset clause

On 6/24/05, Yves Vindevogel <yves.vindevogel@implements.be> wrote:
> So, when I want the last page, which is: 600k / 25 = page 24000 - 1 =
> 23999, I issue the offset of 23999 * 25


improving this is hard, but not impossible.
if you have right index created, try to reverse the order and fetch
first adverts, and then resort it (just the 25 adverts) in correct
order.
it will be faster.

depesz

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