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Re: Unique Index vs. Unique Constraint - Mailing list pgsql-general

From Manfred Koizar
Subject Re: Unique Index vs. Unique Constraint
Date
Msg-id 4j4eov0nemlal2jup77ma5gf70rg9n2k8e@email.aon.at
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In response to Unique Index vs. Unique Constraint  ("Thomas LeBlanc" <thomasatiem@hotmail.com>)
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On Fri, 10 Oct 2003 13:59:38 -0500, "Thomas LeBlanc"
<thomasatiem@hotmail.com> wrote:
>Does a Unique Constraint build a unique index?

Yes.

>What is the difference?

A constraint is an abstract concept, an index is an implementation
detail.

Servus
 Manfred

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