On Thu, 27 Jan 2005, PFC wrote:

Thats a really good idea, just store a list of the sorted ids in the
temp table - small amount of data for insert... I like it!

Alex Turner

The best part is that you can skip the LIMIT/OFFSET entirely if you put page numbers in your cache table while inserting into it, via a temporary sequence or something. Retrieving the results will then be very fast, but beware that SELECT * FROM table WHERE id =ANY( array ) won't use an index, so

contrib/intarray provides index access to such queries.

you'll have to trick the thing by generating a query with IN, or joining against a SRF returning the elements of the array one by one, which might be better.

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Regards, Oleg _____________________________________________________________ Oleg Bartunov, sci.researcher, hostmaster of AstroNet, Sternberg Astronomical Institute, Moscow University (Russia) Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/ phone: +007(095)939-16-83, +007(095)939-23-83

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