Re: Why is vacuum_freeze_min_age 100m?

От: Kevin Grittner
Тема: Re: Why is vacuum_freeze_min_age 100m?
Дата: ,
Msg-id: 4A82EEE802000025000299AE@gw.wicourts.gov
(см: обсуждение, исходный текст)
Ответ на: Re: Why is vacuum_freeze_min_age 100m?  (Tom Lane)
Ответы: Re: Why is vacuum_freeze_min_age 100m?  (Tom Lane)
Список: pgsql-performance

Скрыть дерево обсуждения

Why is vacuum_freeze_min_age 100m?  (Josh Berkus, )
 Re: Why is vacuum_freeze_min_age 100m?  (Josh Berkus, )
  Re: Why is vacuum_freeze_min_age 100m?  (Robert Haas, )
   Re: Why is vacuum_freeze_min_age 100m?  (Josh Berkus, )
    Re: Why is vacuum_freeze_min_age 100m?  (Robert Haas, )
     Re: Why is vacuum_freeze_min_age 100m?  (Josh Berkus, )
      Re: Why is vacuum_freeze_min_age 100m?  (Robert Haas, )
 Re: Why is vacuum_freeze_min_age 100m?  (Tom Lane, )
  Re: Why is vacuum_freeze_min_age 100m?  ("Kevin Grittner", )
   Re: Why is vacuum_freeze_min_age 100m?  (Tom Lane, )
    Re: Why is vacuum_freeze_min_age 100m?  ("Kevin Grittner", )
     Re: Why is vacuum_freeze_min_age 100m?  (Tom Lane, )
      Re: Why is vacuum_freeze_min_age 100m?  (Robert Haas, )
       Re: Why is vacuum_freeze_min_age 100m?  ("Kevin Grittner", )
  Re: Why is vacuum_freeze_min_age 100m?  (Torsten Zühlsdorff, )
 freezing tuples ( was: Why is vacuum_freeze_min_age 100m? )  (Jeff Davis, )
  Re: [HACKERS] freezing tuples ( was: Why is vacuum_freeze_min_age 100m? )  (Alvaro Herrera, )
   Re: [HACKERS] freezing tuples ( was: Why is vacuum_freeze_min_age100m? )  ("Kevin Grittner", )
   Re: Re: [HACKERS] freezing tuples ( was: Why is vacuum_freeze_min_age 100m? )  (Josh Berkus, )
  Re: [HACKERS] freezing tuples ( was: Why is vacuum_freeze_min_age 100m? )  (Robert Haas, )

Tom Lane <> wrote:

> Hmmm ... if you're using VACUUM FREEZE, its behavior is unaffected
> by this GUC anyway --- that option makes it use a freeze age of
> zero.

Yeah, I know, but feel like I'm being a bit naughty in using VACUUM
FREEZE -- the documentation says:

| Selects aggressive "freezing" of tuples. Specifying FREEZE is
| equivalent to performing VACUUM with the vacuum_freeze_min_age
| parameter set to zero. The FREEZE option is deprecated and will be
| removed in a future release; set the parameter instead.

So I figure that since it is deprecated, at some point I'll be setting
the vacuum_freeze_min_age option rather than leaving it at the default
and using VACUUM FREEZE in the nightly maintenance run.

-Kevin


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