От: Adam Witney
Тема: Re: Visual Explain
Дата: ,
Msg-id: BCF73AB6.3485A%awitney@sghms.ac.uk
(см: обсуждение, исходный текст)
Ответ на: Visual Explain  (Jeff)
Ответы: Re: Visual Explain  (Jeff)
Список: pgsql-performance

Скрыть дерево обсуждения

Visual Explain  (Jeff, )
 Re: Visual Explain  (Adam Witney, )
  Re: Visual Explain  (Jeff, )
 Re: Visual Explain  (Paul Thomas, )
  Re: Visual Explain  (Vitaly Belman, )
   Re: Visual Explain  (Jeff, )
   Re: Visual Explain  (Paul Thomas, )
    Re: Visual Explain  (Vitaly Belman, )

Will this run on other platforms? OSX maybe?

> I've known about this tool for a while, but it seems many people do not
> know of its existence and I think it would be useful to a lot of people
> who have a hard time reading explain analyze output. (And even those
> who can read them without blinking.. when you get deep in join hell it
> gets tricky!)
>
> Red Hat Visual Explain - part of Red Hat Database.
>
> It is what the name implies - a graphical (java) program to draw a
> picture of your query plan (along with all the juicy information
> explain analyze provides).   I just tried it out today and after
> upgrading my JDBC to 7.4 it worked fine (If you get a message about SET
> AUTOCOMMIT then you need to upgrade your jdbc jar)
>
> Quite handy for getting a grasp on stupidly large query plans.
>
> http://sources.redhat.com/rhdb/visualexplain.html
>
> I used the CVS version, I have no idea how well the "official" releases
> work.
> Anyone else using it?
>
>
> --
> Jeff Trout <>
> http://www.jefftrout.com/
> http://www.stuarthamm.net/
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
>     joining column's datatypes do not match


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