Re: Performance of count(*)

От: Tom Lane
Тема: Re: Performance of count(*)
Дата: ,
Msg-id: 23628.1174592433@sss.pgh.pa.us
(см: обсуждение, исходный текст)
Ответ на: Re: Performance of count(*)  ("Craig A. James")
Список: pgsql-performance

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Performance of count(*)  (Andreas Tille, )
 Re: Performance of count(*)  (Andreas Kostyrka, )
  Re: Performance of count(*)  (Andreas Tille, )
   Re: Performance of count(*)  (Andreas Kostyrka, )
    Re: Performance of count(*)  (Michael Fuhr, )
    Re: Performance of count(*)  (Carlos Moreno, )
   Re: Performance of count(*)  ("Luke Lonergan", )
 Re: Performance of count(*)  (Albert Cervera Areny, )
  Re: Performance of count(*)  (, )
   Re: Performance of count(*)  (Bill Moran, )
   Re: Performance of count(*)  (Mario Weilguni, )
   Re: Performance of count(*)  (Michael Stone, )
    Re: Performance of count(*)  (, )
    Re: Performance of count(*)  ("Craig A. James", )
     Re: Performance of count(*)  (Tino Wildenhain, )
      Re: Performance of count(*)  ("Craig A. James", )
       Re: Performance of count(*)  (Tino Wildenhain, )
        Re: Performance of count(*)  (Michael Stone, )
         Re: Performance of count(*)  ("Merlin Moncure", )
          Re: Performance of count(*)  (Michael Stone, )
          Re: Performance of count(*)  (Tino Wildenhain, )
          Re: Performance of count(*)  (Michael Stone, )
          Re: Performance of count(*)  (Michael Stone, )
         Re: Performance of count(*)  (Tino Wildenhain, )
          Re: Performance of count(*)  (Michael Stone, )
           Re: Performance of count(*)  (Tino Wildenhain, )
        Re: Performance of count(*)  ("Craig A. James", )
         Re: Performance of count(*)  (Tino Wildenhain, )
       Re: Performance of count(*)  (Steve Atkins, )
        Re: Performance of count(*)  ("Craig A. James", )
         Re: Performance of count(*)  (Tom Lane, )
          Re: Performance of count(*)  ("Craig A. James", )
           Re: Performance of count(*)  (Tom Lane, )
        Re: Performance of count(*)  (Guido Neitzer, )
         Re: Performance of count(*)  (Steve Atkins, )
     Re: Performance of count(*)  (Brian Hurt, )
      Re: Performance of count(*)  ("Craig A. James", )
 Re: Performance of count(*)  (, )
 Re: Performance of count(*)  ("Merlin Moncure", )
  Re: Performance of count(*)  ("Jonah H. Harris", )
   Re: Performance of count(*)  (Mario Weilguni, )
    Re: Performance of count(*)  (Andreas Kostyrka, )
     Re: Performance of count(*)  (Mario Weilguni, )
  Re: Performance of count(*)  (Michael Stone, )

"Craig A. James" <> writes:
> Tom Lane wrote:
>> You mean
>> http://archives.postgresql.org/pgsql-performance/2006-10/msg00283.php
>> ?  I don't see anything there that bears on Steve's suggestion.

> Mea culpa, it's October 8, not October 18:
>    http://archives.postgresql.org/pgsql-performance/2006-10/msg00143.php

I still don't see the relevance to Steve's suggestion.

            regards, tom lane


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