Re: what are keys and surrogates?

From: rpost <>
Date: Sun, 27 Jan 2008 21:03:05 +0100
Message-ID: <4a0d1$479ce379$839b4533$>

Marshall wrote:

>Suppose we wish to model what children someone has. (Using
>int ids for the sake of brevity.)
>{(parent=1, child=2), (parent=1, child=3)}
>Suppose we do it this way:
>{(parent=1, child={2, 3})}
>Why should either of these two ways raise any philosophical issues?

As long as you promise to consistently use this cross-translation to define the meaning of nested values whenever they are used, the difference is only a representational detail.

Received on Sun Jan 27 2008 - 21:03:05 CET

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