Re: index scan on =, but not < ?

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От Jim C. Nasby
Тема Re: index scan on =, but not < ?
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Msg-id 20050309045519.GA509@decibel.org
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Ответ на Re: index scan on =, but not < ?  (Bruno Wolff III <bruno@wolff.to>)
Ответы Re: index scan on =, but not < ?
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On Tue, Mar 08, 2005 at 10:38:21PM -0600, Bruno Wolff III wrote:
> Not exactly. If the number of rows to be examined is on the order of 5%
> of the table, an index scan will probably be slower than a sequential
> scan. The visibility issue makes index scans slower in the case that

Shouldn't that be 50%?
--
Jim C. Nasby, Database Consultant               decibel@decibel.org
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