Re: WIP: cross column correlation ...
От | Robert Haas |
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Тема | Re: WIP: cross column correlation ... |
Дата | |
Msg-id | AANLkTik_QsFRYRvPpJhmeu3Jw4+1SKCM1PuN+D7YVh7m@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: WIP: cross column correlation ... (Alvaro Herrera <alvherre@commandprompt.com>) |
Ответы |
Re: WIP: cross column correlation ...
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Список | pgsql-hackers |
On Fri, Feb 25, 2011 at 2:26 PM, Alvaro Herrera <alvherre@commandprompt.com> wrote: > Excerpts from Rod Taylor's message of vie feb 25 14:03:58 -0300 2011: > >> How practical would it be for analyze to keep a record of response times for >> given sections of a table as it randomly accesses them and generate some >> kind of a map for expected response times for the pieces of data it is >> analysing? > > I think what you want is random_page_cost that can be tailored per > tablespace. We have that. But it's not the same as tracking *sections of a table*. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
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