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Re: Big table, small table

From: Nuno Souto <nsouto_at_optusnet.com.au>
Date: Mon, 29 Sep 2003 05:14:39 -0800
Message-ID: <F001.005D15D3.20030929051439@fatcity.com>

>
> Why would taking an index off make this query faster? What doesn't the CBO
> know that not using an index
> is the best path?
>

The physical sequence of the rows in the smaller table vis-a-vis the range you're querying on.

Cheers
Nuno Souto
nsouto_at_optusnet.com.au

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Author: Nuno Souto
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Received on Mon Sep 29 2003 - 08:14:39 CDT

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