RE: Tree structure

Any details you can supply would be appreciated. I have got a table at the
moment as:

id | group_name | parentid
-------------------------------
1 | Main |
2 | Group |
3 | User |
4 | Group1 | 1
5 | Group2 | 1
6 | Group2-1 | 5

Just for testing. I can see how it should work but the client side code is
defeating me at the moment. I'm working in delphi with winzeos (cracking
components by the way). Anyone done this.

Thanks for any help

Ben Trewern

> -----Original Message-----
> From: kovacsz [mailto:zoli(at)pc10(dot)radnoti-szeged(dot)sulinet(dot)hu]
> Sent: 12 September 2000 10:23
> To: Zeljko Trogrlic
> Cc: Trewern, Ben; 'pgsql-sql(at)postgresql(dot)org'
> Subject: Re: [SQL] Tree structure
>
>
> We are using tree structures (and partially ordered trees) with
> PostgreSQL. After the beginning success we got into speed
> problems. With
> special plus tables, triggers and functions now we have a
> reasonably fast
> database which contains about 5-10 tree structures. If you
> are interested,
> I may send you some of these part of our database. But,
> PostgreSQL "from
> base" doesn't support tree structures, neither recursions
> (like in SQL3),
> as far as I know (see TODO list).
>