From: George Moschovitis Date: 2004-10-08T21:29:45+09:00 Subject: Re: [ANN] ndb Object-Relational Mapper > and this is the one vaguely clever bit of what I've implemented. Each node > has a 'path' attribute stored in a compacted form. It has the property that > select * from elements where path like 'ABC%' order by path; This is a common SQL pattern, however I believe that the method used for efficient hierarchical traversal in n/Db is more general. regards, George -- www.navel.gr | tel: +30 2106898050 | fax: +30 2106898437 Navel does not accept liability for any errors, viruses or omissions in the contents of this message. The full corporate policy is available on our site. have fun: www.joy.gr