| From: | Yves Vindevogel <yves(dot)vindevogel(at)implements(dot)be> |
|---|---|
| To: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Speed with offset clause |
| Date: | 2005-06-24 18:18:48 |
| Message-ID: | 1c365a8bdeb09957fadda7a6fdc8ff02@implements.be |
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| Lists: | pgsql-performance |
Hi again all,
My queries are now optimised. They all use the indexes like they
should.
However, there's still a slight problem when I issue the "offset"
clause.
We have a table that contains 600.000 records
We display them by 25 in the webpage.
So, when I want the last page, which is: 600k / 25 = page 24000 - 1 =
23999, I issue the offset of 23999 * 25
This take a long time to run, about 5-10 seconds whereas offset below
100 take less than a second.
Can I speed this up ?
Met vriendelijke groeten,
Bien à vous,
Kind regards,
Yves Vindevogel
Implements
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