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Re: Selects query stats?

From: Mischa Sandberg <mischa(at)ca(dot)sophos(dot)com>
To: Dan Gorman <dgorman(at)hi5(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Selects query stats?
Date: 2006-05-23 22:18:49
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance
Alvaro Herrera wrote:
> Yeah, the problem seems underspecified.

So, Dan, the question is, what are you trying to measure?
This might be a statistic that management has always been given,
for Oracle, and you need to produce the "same" number for PostgreSQL.

If not, it's hard to figure out what a statement counter actually can measure,
to the extent that you can say, "If that number does THIS, I should do THAT."

Engineers think that equations approximate reality.
Physicists think that reality approximates the equations.
Mathematicians never make the connection.

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