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: [EMAIL PROTECTED]           secondary: scrappy@{freebsd|postgresql}.org 

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