Re: Any better plan for this query?..

From: Matthew Wakeling
Subject: Re: Any better plan for this query?..
Date: ,
Msg-id: alpine.DEB.2.00.0905061527410.2341@aragorn.flymine.org
(view: Whole thread, Raw)
In response to: Re: Any better plan for this query?..  (Kenneth Marshall)
List: pgsql-performance

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Any better plan for this query?..  (Dimitri, )
 Re: Any better plan for this query?..  (Craig Ringer, )
  Re: Any better plan for this query?..  (Dimitri, )
   Re: Any better plan for this query?..  (Chris, )
    Re: Any better plan for this query?..  (Dimitri, )
     Re: Any better plan for this query?..  (Richard Huxton, )
     Re: Any better plan for this query?..  (Craig Ringer, )
      Re: Any better plan for this query?..  (Kenneth Marshall, )
       Re: Any better plan for this query?..  (Matthew Wakeling, )
      Re: Any better plan for this query?..  (Dimitri, )
  Re: Any better plan for this query?..  (Kenneth Marshall, )
 Re: Any better plan for this query?..  (Heikki Linnakangas, )
  Re: Any better plan for this query?..  (Dimitri, )
   Re: Any better plan for this query?..  (Simon Riggs, )
    Re: Any better plan for this query?..  (Dimitri, )
     Re: Any better plan for this query?..  (Merlin Moncure, )
      Re: Any better plan for this query?..  (Dimitri, )
       Re: Any better plan for this query?..  (Simon Riggs, )
        Re: Any better plan for this query?..  (Dimitri, )
         Re: Any better plan for this query?..  (Tom Lane, )
          Re: Any better plan for this query?..  (Dimitri, )
          Re: Any better plan for this query?..  (Simon Riggs, )
         Re: Any better plan for this query?..  (Merlin Moncure, )
         Re: Any better plan for this query?..  (Simon Riggs, )
          Re: Any better plan for this query?..  (Dimitri, )
         Re: Any better plan for this query?..  (Aidan Van Dyk, )
          Re: Any better plan for this query?..  (Dimitri, )
           Re: Any better plan for this query?..  (Alvaro Herrera, )
            Re: Any better plan for this query?..  (Dimitri, )
             Re: Any better plan for this query?..  (Dimitri Fontaine, )
              Re: Any better plan for this query?..  (Dimitri, )
               Re: Any better plan for this query?..  (Simon Riggs, )
                Re: Any better plan for this query?..  (Dimitri, )
                 Re: Any better plan for this query?..  (Simon Riggs, )
               Re: Any better plan for this query?..  (Heikki Linnakangas, )
                Re: Any better plan for this query?..  (Dimitri, )
                 Re: Any better plan for this query?..  (Simon Riggs, )
                  Re: Any better plan for this query?..  (Dimitri, )
                   Re: Any better plan for this query?..  (Simon Riggs, )
                    Re: Any better plan for this query?..  (Dimitri, )
                     Re: Any better plan for this query?..  (Simon Riggs, )
                      Re: Any better plan for this query?..  ("Dave Dutcher", )
                       Re: Any better plan for this query?..  (Dimitri, )
                        Re: Any better plan for this query?..  (Merlin Moncure, )
                         Re: Any better plan for this query?..  (Dimitri, )
                          Re: Any better plan for this query?..  (Merlin Moncure, )
                           Re: Any better plan for this query?..  (Dimitri, )
                            Re: Any better plan for this query?..  (Merlin Moncure, )
                      Re: Any better plan for this query?..  (Dimitri, )
                       Re: Any better plan for this query?..  (Simon Riggs, )
                        Re: Any better plan for this query?..  (Dimitri, )
                         Re: Any better plan for this query?..  (Dimitri, )
                          Re: Any better plan for this query?..  (Simon Riggs, )
                           Re: Any better plan for this query?..  (Dimitri, )
                      Re: Any better plan for this query?..  (Tom Lane, )
                       Re: Any better plan for this query?..  (Dimitri, )
                       Re: Any better plan for this query?..  (Simon Riggs, )
                        Re: Any better plan for this query?..  (Matthew Wakeling, )
                         Re: Any better plan for this query?..  (Simon Riggs, )
                          Re: Any better plan for this query?..  (Simon Riggs, )
                          Re: Any better plan for this query?..  (Matthew Wakeling, )
                           Re: Any better plan for this query?..  (Simon Riggs, )
                           Re: Any better plan for this query?..  (Scott Carey, )
                          Re: Any better plan for this query?..  (Robert Haas, )
                        Re: Any better plan for this query?..  (Tom Lane, )
                         Re: Any better plan for this query?..  (Simon Riggs, )
                          Re: Any better plan for this query?..  (Tom Lane, )
                           Re: Any better plan for this query?..  (Robert Haas, )
                            Re: Any better plan for this query?..  (Simon Riggs, )
                             Re: Any better plan for this query?..  (Robert Haas, )
                              Re: Any better plan for this query?..  (Simon Riggs, )
                     Re: Any better plan for this query?..  (Scott Carey, )
                      Re: Any better plan for this query?..  (Dimitri, )
                       Re: Any better plan for this query?..  (Scott Carey, )
                        Re: Any better plan for this query?..  (Dimitri, )
                         Re: Any better plan for this query?..  (Scott Carey, )
                          Re: Any better plan for this query?..  (Dimitri, )
               Re: Any better plan for this query?..  (Simon Riggs, )
                Re: Any better plan for this query?..  (Dimitri, )
                 Re: Any better plan for this query?..  (Robert Haas, )
                  Re: Any better plan for this query?..  (Dimitri, )
                   Re: Any better plan for this query?..  ("Kevin Grittner", )
                   Re: Any better plan for this query?..  ("Joshua D. Drake", )
                    Re: Any better plan for this query?..  (Dimitri, )
                   Re: Any better plan for this query?..  (Robert Haas, )
                    Re: Any better plan for this query?..  (Dimitri, )
               Re: Any better plan for this query?..  (Stefan Kaltenbrunner, )
                Re: Any better plan for this query?..  (Dimitri, )
                 Re: Any better plan for this query?..  (Stefan Kaltenbrunner, )
                  Re: Any better plan for this query?..  (Matthew Wakeling, )
                   Re: Any better plan for this query?..  (Simon Riggs, )
                    Re: Any better plan for this query?..  (Matthew Wakeling, )
                     Re: Any better plan for this query?..  (Stefan Kaltenbrunner, )
                     Re: Any better plan for this query?..  (Tom Lane, )
                      Re: Any better plan for this query?..  (Robert Haas, )
                  Re: Any better plan for this query?..  (Dimitri, )
   Re: Any better plan for this query?..  ("Joshua D. Drake", )
           Re: Any better plan for this query?..  (Heikki Linnakangas, )
            Re: Any better plan for this query?..  (Dimitri, )
           Re: Any better plan for this query?..  (Andres Freund, )
            Re: Any better plan for this query?..  (Alvaro Herrera, )
             Re: Any better plan for this query?..  (Scott Carey, )
              Re: Any better plan for this query?..  (Dimitri, )
               Re: Any better plan for this query?..  (Scott Carey, )
                Re: Any better plan for this query?..  (Dimitri Fontaine, )
                 Re: Any better plan for this query?..  (Dimitri, )
                 Re: Any better plan for this query?..  (Simon Riggs, )
                Re: Any better plan for this query?..  (Dimitri, )
    Re: Any better plan for this query?..  (Gregory Stark, )
     Re: Any better plan for this query?..  (Simon Riggs, )
  Re: Any better plan for this query?..  (Matthew Wakeling, )
  Re: Any better plan for this query?..  (Tom Lane, )
   Re: Any better plan for this query?..  (Greg Stark, )
   Re: Any better plan for this query?..  (Robert Haas, )
  Re: Any better plan for this query?..  (Simon Riggs, )
   Re: Any better plan for this query?..  ("Joshua D. Drake", )
    Re: Any better plan for this query?..  (Aidan Van Dyk, )
     Re: Any better plan for this query?..  (Stephen Frost, )
   Re: Any better plan for this query?..  (Robert Haas, )
   Re: Any better plan for this query?..  (Glenn Maynard, )
    Re: Any better plan for this query?..  (Dimitri, )
    Re: Any better plan for this query?..  ("Kevin Grittner", )
     Re: Any better plan for this query?..  (Dimitri, )
      Re: Any better plan for this query?..  ("Kevin Grittner", )
  Re: Any better plan for this query?..  (Dimitri Fontaine, )
   Re: Any better plan for this query?..  (Alvaro Herrera, )
  Re: Any better plan for this query?..  (Robert Haas, )
   Re: Any better plan for this query?..  (Dimitri, )
 Re: Any better plan for this query?..  (Dimitri, )
  Re: Any better plan for this query?..  (Richard Huxton, )
  Re: Any better plan for this query?..  ("Albe Laurenz", )
   Re: Any better plan for this query?..  (Dimitri, )
    Re: Any better plan for this query?..  (Kenneth Marshall, )
 Re: Any better plan for this query?..  (Merlin Moncure, )
  Re: Any better plan for this query?..  (Merlin Moncure, )
   Re: Any better plan for this query?..  (Dimitri, )
    Re: Any better plan for this query?..  (Richard Huxton, )
     Re: Any better plan for this query?..  (Ries van Twisk, )
      Re: Any better plan for this query?..  (Dimitri, )
 Re: Any better plan for this query?..  (Kenneth Marshall, )
  Re: Any better plan for this query?..  (Dimitri, )
   Re: Any better plan for this query?..  (Kenneth Marshall, )
 Re: Any better plan for this query?..  (Dimitri, )
  Re: Any better plan for this query?..  (Alvaro Herrera, )
 Re: Any better plan for this query?..  (Simon Riggs, )

> On Wed, May 06, 2009 at 10:04:33PM +0800, Craig Ringer wrote:
>> Can the genetic query optimizer come into play on small queries?

On Wed, 6 May 2009, Kenneth Marshall wrote:
> No.

Yes. But you would have had to have set some really weird configuration.

Matthew

--
 And the lexer will say "Oh look, there's a null string. Oooh, there's
 another. And another.", and will fall over spectacularly when it realises
 there are actually rather a lot.
         - Computer Science Lecturer (edited)


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From: Kenneth Marshall
Date:
Subject: Re: Any better plan for this query?..
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Date:
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