Re: sub-limiting a query

Louis-David Mitterrand wrote:
> Hello,
>
> I've got a table of shows with different types (movie, theater, 
> ballet,etc.) and I am looking for a select that can return the 10 last 
> entered shows AND at most 2 of each type. Is that possible in one query?
>
> The table looks basically like:
>
>     created_on      | timestamp without time zone 
>     show_name       | text 
>     id_show         | integer                     
>     show_type       | text                        
>     id_show_subtype | integer                     
>
> ---------------------------(end of broadcast)---------------------------
> TIP 2: Don't 'kill -9' the postmaster
>
>   

Looks like a top n query and whilst there are many top-n query solution 
I'd refer you to a Joe Celko solution.
Check the "top salesperson contest" and I think you should be able to 
work your problem (http://www.dbmsmag.com/9610d06.html)

Mario