Re: Using bitmap index scans-more efficient

From: Florian Weimer <fweimer(at)bfk(dot)de>
To: Kyle Bateman <kyle(at)actarg(dot)com>
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: Using bitmap index scans-more efficient
Date: 2006-08-14 06:40:14
Message-ID: 82mza77rch.fsf@mid.bfk.de
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* Kyle Bateman:

> Any ideas about whether/how this can be done?

If the project tree is fairly consistent, it's convenient to encode it
using intervals instead of parent/child intervals. IIRC, Celko's "SQL
for smarties" explains how to do this, and Kristian Koehntopp has
written some PHP code to implement it.

--
Florian Weimer <fweimer(at)bfk(dot)de>
BFK edv-consulting GmbH http://www.bfk.de/
Durlacher Allee 47 tel: +49-721-96201-1
D-76131 Karlsruhe fax: +49-721-96201-99

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