primary key index

From: Sim Zacks <sim(at)compulab(dot)co(dot)il>
To: pgsql-general(at)postgresql(dot)org
Subject: primary key index
Date: 2007-05-14 08:27:18
Message-ID: f29330$24d1$1@news.hub.org
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Is a primary key an implicit index, or if I want to join on that field is it also worthwhile to make
an explicit index?

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