Functional index and string concatenation

From: Daniel Henrique Alves Lima <email_daniel_h(at)yahoo(dot)com(dot)br>
To: pgsql-sql(at)postgresql(dot)org
Subject: Functional index and string concatenation
Date: 2004-03-08 15:19:36
Message-ID: 404C8F08.2070403@yahoo.com.br
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Is there a way to create a "functional index" over a string
concatenation of two columns ?

Thanks.

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