From: Chris Gamache <cgg007@yahoo.com>
To: pgsql-sql@postgresql.org
Subject: A Costly function + LIMIT
Date: Fri, 13 Dec 2002 10:14:35 -0800 (PST)
Message-ID: <20021213181435.31771.qmail@web13804.mail.yahoo.com> (raw)
PostgreSQL 7.2.3
I have a function that is quite costly to run on 1000's of records... Let's
call it "widget".
I have a query
(SELECT name, address, city, state, zip, widget(name, address, city, state,
zip)
FROM eastern_usa
ORDER BY state, city, zip, name
LIMIT 5000)
UNION ALL
(SELECT name, address, city, state, zip, widget(name, address, city, state,
zip)
FROM western_usa
ORDER BY state, city, zip, name
LIMIT 5000)
ORDER BY 4, 3, 5, 1 LIMIT 100 OFFSET 0;
It runs "widget" on 10000 records. The damage would be negligible if it could
run on the 100...
Any ideas?
CG
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To: pgsql-sql@postgresql.org
Cc: cgg007@yahoo.com
Subject: Re: A Costly function + LIMIT
In-Reply-To: <20021213181435.31771.qmail@web13804.mail.yahoo.com>
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