what's the relation between pathkey and path in optimize phase?

From: sunpeng <bluevaley(at)gmail(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: what's the relation between pathkey and path in optimize phase?
Date: 2010-05-07 17:13:38
Message-ID: v2o46cc57ac1005071013yc414f081i910e0f46789b5c66@mail.gmail.com
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what's the relation between pathkey and path in optimize phase?
thanks
peng

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