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RE: Add/Drop partition and CBO statistics

From: Wartiak Rastislav <RWartiak_at_cpoj.cz>
Date: Tue, 02 Dec 2003 04:14:25 -0800
Message-ID: <F001.005D86A6.20031202041425@fatcity.com>


When partitioning key is not a part of the index and you are querying whole table, then it is faster to scan one big index than many smaller ones. The difference is something like log rows to partcount*log (rows/partcount).

> BTW, local indexes are the only way to go -- I've never
> understood the point
> of global indexes on partitioned tables -- maybe someone else can?

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Wartiak Rastislav
  INET: RWartiak_at_cpoj.cz

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Received on Tue Dec 02 2003 - 06:14:25 CST

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