Fractional Results - Mailing list pgsql-sql

From pocm@rnl.ist.utl.pt (Paulo J. Matos)
Subject Fractional Results
Date
Msg-id 874rl0y8pq.fsf@localhost.localdomain
Whole thread Raw
Responses Re: Fractional Results
List pgsql-sql
Hi all,

I'm doing a sql query to get an average of some tables. SQL has
an average command but unfortunately we cannot use it since out
information is not in only one column, we've done the following:
select temp1.espl / temp2.iluminados 
from (select count(*) as espl from esp) as temp1,     (select count(distinct id) as iluminados from esp) as temp2;

After some testing i found out that temp1.espl / temp2.iluminados 
gives us always the floor of the real value. I would like the
fractional number instead of the floor. 
Any ideas on this topic?

Best regards,
-- 
Paulo J. Matos : pocm(_at_)rnl.ist.utl.pt
Instituto Superior Tecnico - Lisbon    
Software & Computer Engineering - A.I.- > http://www.rnl.ist.utl.pt/~pocm ---    Yes, God had a deadline...    So, He
wroteit all in Lisp!
 



pgsql-sql by date:

Previous
From: Tom Lane
Date:
Subject: Array slice subscripts (was Re: plpgsql function with more than one array argument)
Next
From: Tom Lane
Date:
Subject: Re: Fractional Results