Re: WIP: cross column correlation ...

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От Robert Haas
Тема Re: WIP: cross column correlation ...
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Msg-id AANLkTik_QsFRYRvPpJhmeu3Jw4+1SKCM1PuN+D7YVh7m@mail.gmail.com
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Ответ на Re: WIP: cross column correlation ...  (Alvaro Herrera <alvherre@commandprompt.com>)
Ответы Re: WIP: cross column correlation ...  (Alvaro Herrera <alvherre@commandprompt.com>)
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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