From: | Timo Nentwig <timo(at)nitwit(dot)de> |
---|---|
To: | support(at)postgresql(dot)org |
Subject: | Bug in optimizer |
Date: | 2004-05-03 16:08:23 |
Message-ID: | 40966E77.4020004@nitwit.de |
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Thread: | |
Lists: | pgsql-bugs pgsql-performance |
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Hi!
Your bug report form on the web doesn't work.
This is very slow:
SELECT urls.id FROM urls WHERE
(
urls.id <> ALL (SELECT html.urlid FROM html)
);
...while this is quite fast:
SELECT urls.id FROM urls WHERE
(
NOT (EXISTS (SELECT html.urlid FROM tml WHERE
(
html.urlid = urls.id
)))
);
Regards
Timo
- --
http://nentwig.biz/ (J2EE)
http://nitwit.de/
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