Re: Need help with query

On Tue, 17 Apr 2001, Kevin Heflin wrote:

> Don't know if this would be the correct place to ask this. We have a 
> postgresql server running version 6.5.3
> It hosts a 100 or so different databases, and performs just great. I do 
> however have one query which takes about 20 seconds to complete. The 
> database only has 200-300 records. Don't know much about SQL other than 
> simple selects and inserts. I'm the one who created the query in 
> question, and even today when I look at it, I'm not sure I understand 
> it, but it gives us the results we want, it's just very slow.
> 
> I'm sure someone with some SQL know-how could probably shorten this 
> query down some. But it's way over my head.
> 
> Basically I've got a database with these tables:
> client (list of clients)
> project (each project belongs to a client)
> subproject (each subproject belongs to a project)
> status (each project has a status)
> users (each project and subproject are assigned to a user)
> timelog (each timelog record indicates time worked on a particular 
> subproject and who worked on it)
> 
> A sample row would look like this:
> 
> 
> project_id|project_title|clientid|status|percentcomplete|duedate   
> |usersid|client_id|name       
> |users_id|users_name|status_id|status_name|hoursworked
> ----------+-------------+--------+------+---------------+----------+-------+
> ---------+-----------+--------+----------+---------+-----------+-----------
>         143|project 1    |      79|     3|            
> 100|04-06-2001|      8|       79|Client Name|       8|     Kevin|        
> 3|status     |          1

Kevin --

Looking quickly at your problem, I have one or two ideas, but need to play
for a few minutes.

Can you post a schema and a small amount of data?

-- 
Joel Burton   <jburton@scw.org>
Director of Information Systems, Support Center of Washington