Re: performance with query

От: Alberto Dalmaso
Тема: Re: performance with query
Дата: ,
Msg-id: 1245312129.5027.154.camel@dalmaso-opensuse.cl
(см: обсуждение, исходный текст)
Ответ на: Re: performance with query  ("Kevin Grittner")
Ответы: Re: performance with query  ("Kevin Grittner")
Список: pgsql-performance

Скрыть дерево обсуждения

performance with query  (Alberto Dalmaso, )
 Re: performance with query  (Joshua Tolley, )
 Re: performance with query  ("Kevin Grittner", )
 Re: performance with query  (Alberto Dalmaso, )
  Re: performance with query  (Matthew Wakeling, )
   Re: performance with query  (Alberto Dalmaso, )
    Re: performance with query  (Tom Lane, )
     Re: performance with query  (Alberto Dalmaso, )
      Re: performance with query  (Tom Lane, )
      Re: performance with query (OT)  ("Albe Laurenz", )
    Re: performance with query  ("Kevin Grittner", )
  Re: performance with query  ("Kevin Grittner", )
   Re: performance with query  (Alberto Dalmaso, )
    Re: performance with query  ("Kevin Grittner", )
    Re: performance with query  ("Kevin Grittner", )
     Re: performance with query  (Alberto Dalmaso, )
      Speeding up a query.  ("Hartman, Matthew", )
       Re: Speeding up a query.  (Anthony Presley, )
        Re: Speeding up a query.  ("Hartman, Matthew", )
       Re: Speeding up a query.  ("Albe Laurenz", )
        Re: Speeding up a query.  (Grzegorz Jaśkiewicz, )
       Re: Speeding up a query.  (Alberto Dalmaso, )
        Re: Speeding up a query.  ("Kevin Grittner", )
        Re: Speeding up a query.  (Tom Lane, )
       Re: Speeding up a query.  (Merlin Moncure, )
        Re: Speeding up a query.  ("Hartman, Matthew", )
       Re: Speeding up a query.  ("Hartman, Matthew", )
       Re: Speeding up a query.  (Simon Riggs, )
        Re: Speeding up a query.  ("Hartman, Matthew", )
 Re: performance with query  (Alberto Dalmaso, )
 Re: performance with query  (Alberto Dalmaso, )
  Re: performance with query  ("Kevin Grittner", )
   Re: performance with query  (Alberto Dalmaso, )
    Re: performance with query  ("Kevin Grittner", )
     Re: performance with query  (Alberto Dalmaso, )
      Re: performance with query  ("Kevin Grittner", )
       Re: performance with query  (Tom Lane, )
        Re: performance with query  ("Kevin Grittner", )

P.S.: to understand what the query has to make (and 80% of the view hve
these to make): a lot of time is spend to pivoting a table with a
structure like
identifier, description_of_value, numeric value
that has to be transformed in
identifier, description_1, description_2, ..., description_n
where n is not a fixed number (it changes in function of the type of
calculation that was used to generate the rows in the table).

perhaps this information could help.

thanks everybady



В списке pgsql-performance по дате сообщения:

От: Alberto Dalmaso
Дата:
Сообщение: Re: performance with query
От: Merlin Moncure
Дата:
Сообщение: Re: enum for performance?