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Re: How to represent a tree-structure in a relationaldatabase

From: Alvar Freude <alvar(dot)freude(at)merz-akademie(dot)de>
To: miguel sofer <mig(at)utdt(dot)edu>, pgsql-sql(at)postgresql(dot)org
Subject: Re: How to represent a tree-structure in a relationaldatabase
Date: 2000-12-15 02:42:46
Message-ID: 3A398526.3C491E91@merz-akademie.de (view raw or flat)
Thread:
Lists: pgsql-sql
Hi,

miguel sofer wrote:
> 
> I once started writing a small paper on this subject; it is still in a
> rather preliminary state.
> 
> You can download the draft (and some ill documented code, 53kB) from
>   http://www.utdt.edu/~mig/sql-trees

ah, this looks very, very nice!
on page 5ff you describe the Postgres implementation, but the URL (page
5 bottom) is't complete -- can i find the files somewhere?
Included is a "tree_general.sql", but this seems not to be complete and
not the same version as the ps-file (First draft, may 6, 2000): in the
draft there is written about an base 160 encoding, tree_general.sql uses
base 159 encoding ;)


Ciao
  Alvar


-- 
Alvar C.H. Freude  |  alvar(dot)freude(at)merz-akademie(dot)de

    Demo: http://www.online-demonstration.org/  |  Mach mit!
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