Re: Cost Vs. Rules Based Optimizers

From: Heikki Rissanen <rissahe1_at_news.ougf.fi>
Date: 18 Jan 1995 11:09:14 -0200
Message-ID: <3fj3tqINN23r_at_news.ougf.fi>

Jeff Perry (jp_at_vllyoak.resun.com) wrote:
: vv_at_mbunix (Vincent A Ventrone) writes:
 

: We found that the cost-based optimizer caused incorrect results. Our
: applications people reported no problems after switching to the
: rules-based optimizer (7.0.13.1).
: --

Hello Jeff and others!

 What is the current status of the cost based optimizer?

 The information I have heard is that it is not too good in 7.0 and may cause  wrong results.

 Our Oracle support says that 7.1.3 is OK. Is it really?

Regards,

        Hessu

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Heikki Rissanen, United Papermills, Rauma, Finland Email: rissahe1_at_news.ougf.fi

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Heikki Rissanen, United Papermills, Rauma, Finland
Email: rissahe1_at_news.ougf.fi
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Received on Wed Jan 18 1995 - 14:09:14 CET