RE: density calculation when histograms are involved

From: Baumgartel, Paul <paul.baumgartel_at_credit-suisse.com>
Date: Thu, 13 Sep 2007 14:52:35 -0400
Message-ID: <21469B88E0EA11498818517F21033531596EDD@EPRI17P32001A.csfb.cs-group.com>

Also consult Jonathan Lewis's book Cost-Based Oracle.

Paul Baumgartel
CREDIT SUISSE
Information Technology
Securities Processing Databases Americas One Madison Avenue
New York, NY 10010
USA
Phone 212.538.1143
paul.baumgartel_at_credit-suisse.com
www.credit-suisse.com

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Alvaro Jose Fernandez
Sent: Thursday, September 13, 2007 1:56 PM To: exriscer_at_gmail.com; oracle-l
Subject: RE: density calculation when histograms are involved

Hi Cheng,

Recommend you to read:

1st: Wolfgang's
http://www.centrexcc.com/Histograms%20-%20Myths%20and%20Facts.pdf

2nd: Alberto Dell'Era "Join over Histograms" paper : http://www.adellera.it/investigations/join_over_histograms/JoinOverHisto grams.pdf (covering much more complex cases)

regards.

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Received on Thu Sep 13 2007 - 13:52:35 CDT