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RE: HP-UX 11.0/8.1.6.2.0/Optimizer

From: <sean.hull_at_pobox.com>
Date: Mon, 24 Jun 2002 22:23:21 -0800
Message-ID: <F001.0048639B.20020624222321@fatcity.com>

On Mon, 24 Jun 2002, John Kanagaraj wrote:

> Contrary to common understanding, the Cost based optimizer is 'forced' in
> certain situations even if the mode is RULE. Examples are: Use of hints
> other than RULE, Partitioned tables and indexes, Index-organized tables,
> Reverse key indexes, Function-based indexes, SAMPLE clauses in a SELECT
> statement, Parallel execution and parallel DML (i.e. presence of DEGREE on
> Tables/Indexes), etc. Was this the case? This was the focus of my paper at
> IOUG...
My mouth dropped open when I read this. News to me. This is a bit astonishing, though I'm sure well documented. Somehow I've passed over it. John, can you send a link to your paper?

THanks,
Sean

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Received on Tue Jun 25 2002 - 01:23:21 CDT

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