From: | The Hermit Hacker <scrappy(at)hub(dot)org> |
---|---|
To: | Jixue Jerry Liu <cisjl(at)cs(dot)unisa(dot)edu(dot)au> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: questions |
Date: | 1999-01-11 04:41:05 |
Message-ID: | Pine.BSF.4.05.9901110040450.94113-100000@thelab.hub.org |
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Thread: | |
Lists: | pgsql-general |
I've sent this onto the mailng lists...
On Mon, 11 Jan 1999, Jixue Jerry Liu wrote:
> Dear Marc,
>
> My name is Jixue Liu, a PhD student in the School of Computer Science,
> University of South Australia. I am studying view maintenance in OR
> Systems. The model I study most and the system I use is Postgres. I
> appreciate the contribution of Postgres group to the field. Now I have
> some questions about the usage of the system.
>
> 1. How to define a relation with an attribute which takes set values?
> 2. How to populate instances to a table referring another table? An
> example:
> Create table cities (name text, population float);
> Insert into cities values ('Adelaide',100.0);
> Create table people(name text, live_in cities);
> How to insert a tuple into people saying that 'Jerry' lives in
> Adelaide?
>
>
> I am looking forward to hearing from you.
>
> Jixue Liu
>
>
>
>
Marc G. Fournier
Systems Administrator @ hub.org
primary: scrappy(at)hub(dot)org secondary: scrappy(at){freebsd|postgresql}.org
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