If you're using this to provide "pages" of results, could you use a cursor?
What do you mean by that? Cursor?
Yes I'm using this to provide "pages", but If I jump to the last pages it goes very slow.
Andy.
----- Original Message ----- From: "Richard Huxton" <dev@archonet.com>
To: "Andrei Bintintan" <[EMAIL PROTECTED]>
Cc: <pgsql-sql@postgresql.org>; <pgsql-performance@postgresql.org>
Sent: Thursday, January 20, 2005 2:10 PM
Subject: Re: [SQL] OFFSET impact on Performance???
Andrei Bintintan wrote:Hi to all,
I have the following 2 examples. Now, regarding on the offset if it is small(10) or big(>50000) what is the impact on the performance of the query?? I noticed that if I return more data's(columns) or if I make more joins then the query runs even slower if the OFFSET is bigger. How can I somehow improve the performance on this?
There's really only one way to do an offset of 1000 and that's to fetch 1000 rows and then some and discard the first 1000.
If you're using this to provide "pages" of results, could you use a cursor?
-- Richard Huxton Archonet Ltd
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