Re: RE: query slow in 9i, but not slow in 8i

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Wed, 3 Mar 2004 16:02:47 -0000
Message-ID: <001f01c40138$f930fc70$6702a8c0@Primary>

That's nothing - I built one query that
took over 4 hours to parse. Mind you,
it was 255 tables, and rule based.

(CBO parsed it in less than a second)

Regards

Jonathan Lewis
http://www.jlcomp.demon.co.uk

The Co-operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html

March 2004 Hotsos Symposium - The Burden of Proof Dynamic Sampling - an investigation
March 2004 Charlotte OUG (www.cltoug.org) CBO Tutorial April 2004 Iceland
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Original Message ----- From: "Mladen Gogala" <mladen_at_wangtrading.com> To: <oracle-l_at_freelists.org> Sent: Wednesday, March 03, 2004 2:23 PM Subject: Re: RE: query slow in 9i, but not slow in 8i

> Parse time over a minute? Was it a huge query or not? I find it hard to
believe.
>
>

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Received on Wed Mar 03 2004 - 09:59:42 CST