Performance improvements/regressions from 8.4 to 9.0?

From: Andy <angelflow(at)yahoo(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Performance improvements/regressions from 8.4 to 9.0?
Date: 2010-09-30 00:01:55
Message-ID: 378136.12565.qm@web111306.mail.gq1.yahoo.com
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Hi,

Are there any significant performance improvements or regressions from 8.4 to 9.0? If yes, which areas (inserts, updates, selects, etc) are those in?

In a related question, is there any public data that compares the performances of various Postgresql versions?

Thanks

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