Message-ID: <1336328938.24769.YahooMailNeo@web126003.mail.ne1.yahoo.com>
Date: 2012-05-06T18:28:58Z
From: Santiago Guallar
Subject: creating a new column assigning values of other columns
In-Reply-To: <CAAmySGPcKrzdATYZ8-3Tkpw70fvsN0DjQgSO5PwGoeKLK+MKFA@mail.gmail.com>
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