Re: Table Design for Hierarchical Data - Mailing list pgsql-sql

From Achilleas Mantzios
Subject Re: Table Design for Hierarchical Data
Date
Msg-id 201004071139.42140.achill@matrix.gatewaynet.com
Whole thread Raw
In response to Re: Table Design for Hierarchical Data  (Yeb Havinga <yebhavinga@gmail.com>)
Responses Re: Table Design for Hierarchical Data
Re: Table Design for Hierarchical Data
List pgsql-sql
Στις Wednesday 07 April 2010 11:06:44 ο/η Yeb Havinga έγραψε:
> Achilleas Mantzios wrote:
> > You could also consider the genealogical approach, e.g.
> >
> >
> > The parents of any node to the root, i.e. the path of any node to the root are depicted as
> > parents[0] : immediate parent
> > parents[1] : immediate parent of the above parent
> >
> What I have more than one parent?

Then it is no longer neither a tree, nor a hierarchical structure, but rather a graph.
This a totally different problem.

>
> regards,
> Yeb Havinga
>
>



--
Achilleas Mantzios


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