Обсуждение: Re: [PERFORM] finding a max value

On Fri, 02 Jul 2004 20:50:26 +0200, Edoardo Ceccarelli <eddy@expot.it> wrote:

> This is the query:
> select max(KA) from annuncio

> wasn't supposed to do an index scan? it takes about 1sec to get the result.

> TIP 5: Have you checked our extensive FAQ?

I believe this is a FAQ.

See: http://www.postgresql.org/docs/faqs/FAQ.html#4.8

Try "select KA from annuncio order by KA desc limit 1;"

/rls

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:wq