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Re: Curious question about flushing the Pool

From: Don Granaman <granaman_at_cox.net>
Date: Thu, 25 Apr 2002 01:13:23 -0800
Message-ID: <F001.0044EF40.20020425011323@fatcity.com>


I'll second that suggestion!

To extend the analogy, how about a "recycle pool" for them?
(So they don't fragment or otherwise clutter up the "keep pool".)
How about adaptive "auto-pin" in the "keep pool" based on execution frequency?
(Never mind... Probably not really necessary. I'd settle for the LRU bias.)

Don Granaman
[OraSaurus]

I think an excellent Oracle kernel enhancement would be to bias in the LRU scheme against SQL that uses literals, just like the buffer cache algorithm biases against blocks that are read via full-table scan. Think about it... What's the likelihood that a SQL statement that's filthy with literal values will ever be reused again in the future? Then why store it as if it will ever be shared (i.e., reused) in the future?

Cary Millsap
Hotsos Enterprises, Ltd.
cary.millsap_at_hotsos.com
http://www.hotsos.com

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Author: Don Granaman
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Received on Thu Apr 25 2002 - 04:13:23 CDT

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