primary/secondary index, difference

From: zilch(at)home(dot)se
To: pgsql-general(at)postgresql(dot)org
Subject: primary/secondary index, difference
Date: 2001-06-17 19:14:57
Message-ID: 20010617211457.A16483@loony
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What is the difference between a primary and a secondary index?

Is the one created by serial a primary or secondary? why?

Thanks!

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Daniel Akerud

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