Oracle-L: export with "first rows"

From: Ed Lewis <eglewis_at_hotmail.com>
Date: Thu, 15 Aug 2002 13:13:32 -0800
Message-ID: <F001.004B6D33.20020815131332@fatcity.com>

Hello,

We have the optimizer mode set to "first rows" on our (25gb) database to meet a vendor requirement. When I do an "direct" export, it runs for 6-7 hours.

When I change the optimizer mode to "choose" it runs in around an hour.
It also runs in an hour when I set the the optimizer mode to "first rows", and run stats on the "sys" schema.

I'm curious why this occurs. Has anyone experienced this ? Any ideas why this happens ? Is this normal behavior ? I could not find anything on metalink. thanks.

Oracle 8.1.7.2, aix 4.3.3.

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Author: Ed Lewis
INET: eglewis_at_hotmail.com

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