will foreign key improve select query performance

From: "petchimuthu lingam" <spmlingam(at)gmail(dot)com>
To: pgsql-php(at)postgresql(dot)org
Subject: will foreign key improve select query performance
Date: 2008-03-07 04:18:44
Message-ID: cd233fc30803062018o161cb94fua346801b4ac10dc2@mail.gmail.com
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If i create foreign key references, whether it will improve the performance
in the select query?

--
With Best Regards,
Petchimuthulingam S

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