От: Tom Lane
Тема: Re: Sort and index
Дата: ,
Msg-id: 6536.1114232440@sss.pgh.pa.us
(см: обсуждение, исходный текст)
Ответ на: Re: Sort and index  ("Jim C. Nasby")
Ответы: Re: Sort and index  ("Jim C. Nasby")
Список: pgsql-performance

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Sort and index  (Andrei Gaspar, )
 Re: Sort and index  ("Dave Held", )
  Re: Sort and index  (Andrei Gaspar, )
  Re: Sort and index  (Michael Fuhr, )
   Re: Sort and index  (Andrei Gaspar, )
  Re: Sort and index  ("Jim C. Nasby", )
   Re: Sort and index  (Tom Lane, )
    Re: Sort and index  ("Jim C. Nasby", )
     Re: Sort and index  ("Jim C. Nasby", )
      Re: Sort and index  (Tom Lane, )
       Re: Sort and index  ("Jim C. Nasby", )
        Re: Sort and index  (Tom Lane, )
         Re: Sort and index  ("Jim C. Nasby", )
          Re: Sort and index  (Manfred Koizar, )
           Re: Sort and index  ("Jim C. Nasby", )
            Re: Sort and index  (Manfred Koizar, )
             Re: Sort and index  ("Jim C. Nasby", )

"Jim C. Nasby" <> writes:
>> Feel free to propose better cost equations.

> Where would I look in code to see what's used now?

All the gold is hidden in src/backend/optimizer/path/costsize.c.

            regards, tom lane


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