Re: [DOCS] [HACKERS] Please Help: PostgreSQL Query Optimizer
От
Tom Lane
Тема
Re: [DOCS] [HACKERS] Please Help: PostgreSQL Query Optimizer
Дата
Msg-id
18706.1134333696@sss.pgh.pa.us
Ответ на
Re: [HACKERS] Please Help: PostgreSQL Query Optimizer (Josh Berkus)
Список
Дерево обсуждения
Please Help: PostgreSQL Query Optimizer "Anjan Kumar. A." <anjankumar@cse.iitb.ac.in>
Re: [HACKERS] Please Help: PostgreSQL Query Optimizer Josh Berkus <josh@agliodbs.com>
Re: [DOCS] [HACKERS] Please Help: PostgreSQL Query Optimizer Tom Lane <tgl@sss.pgh.pa.us>
Re: [HACKERS] Please Help: PostgreSQL Query Optimizer "Anjan Kumar. A." <anjankumar@cse.iitb.ac.in>
Re: [HACKERS] Please Help: PostgreSQL Query Optimizer Josh Berkus <josh@agliodbs.com>
Josh Berkus writes: > I don't see why you're increasing the various cpu_* costs. You missed the point Josh --- these numbers are relative to the cost of a page fetch, so if page fetch is measured in microseconds instead of milliseconds, then you *do* want to bump the CPU costs up. regards, tom lane
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