Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits

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От Andres Freund
Тема Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits
Дата
Msg-id 20190405054241.gsuwerewl6odhn7z@alap3.anarazel.de
обсуждение исходный текст
Ответ на Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Darafei "Komяpa" Praliaskouski)
Список pgsql-hackers
Дерево обсуждения
COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
 Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Kuntal Ghosh, )
  Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Simon Riggs, )
   Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Kuntal Ghosh, )
 Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Jeff Janes, )
  Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
 Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Masahiko Sawada, )
  Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
   Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Masahiko Sawada, )
    Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
     Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Masahiko Sawada, )
      Re: Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (David Steele, )
      Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
       Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Darafei Praliaskouski, )
       Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Masahiko Sawada, )
        Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
 Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
  Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Tomas Vondra, )
  Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Andres Freund, )
   Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Alvaro Herrera, )
    Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Andres Freund, )
     Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Andres Freund, )
      Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Alvaro Herrera, )
       Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Andres Freund, )
        Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
       Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Andres Freund, )
        Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
         Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Andres Freund, )
        Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Tom Lane, )
         Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Andres Freund, )
          Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Andres Freund, )
           Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Andres Freund, )
            Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
             Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, )
              Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Amit Kapila, )
               Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Ibrar Ahmed, )
         Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Darafei "Komяpa" Praliaskouski, )
          Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Andres Freund, )
       Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Ibrar Ahmed, )
        Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Ibrar Ahmed, )
         Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Daniel Gustafsson, )
          Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Anastasia Lubennikova, )
           Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Robert Haas, )
            Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Anastasia Lubennikova, )
             Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Ibrar Ahmed, )
              Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Hamid Akhtar, )
               Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Ibrar Ahmed, )
              Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Alvaro Herrera, )
               Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Anastasia Lubennikova, )
                Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Ibrar Ahmed, )
                 Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Anastasia Lubennikova, )
                  Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Ibrar Ahmed, )
                   Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Anastasia Lubennikova, )
                    Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Tatsuo Ishii, )
                     Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Tomas Vondra, )
                      Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Anastasia Lubennikova, )
 Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Tomas Vondra, )
  Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Anastasia Lubennikova, )
   Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Tomas Vondra, )
    Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Anastasia Lubennikova, )
     Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Tomas Vondra, )
      Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Anastasia Lubennikova, )
       Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Tomas Vondra, )
        Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Tomas Vondra, )
         Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Tatsuo Ishii, )
         Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits  (Pavan Deolasee, ) 
Hi,

On 2019-04-05 08:38:34 +0300, Darafei "Komяpa" Praliaskouski wrote:
> On Fri, Apr 5, 2019 at 6:58 AM Tom Lane <> wrote:
> 
> > Andres Freund <> writes:
> > > I think the right approach would be to do all of this in heap_insert and
> > > heap_multi_insert. Whenever starting to work on a page, if INSERT_FROZEN
> > > is specified, remember whether it is either currently empty, or is
> > > already marked as all-visible. If previously empty, mark it as all
> > > visible at the end. If already all visible, there's no need to change
> > > that. If not yet all-visible, no need to do anything, since it can't
> > > have been inserted with COPY FREEZE.  Do you see any problem doing it
> > > that way?
> >
> > Do we want to add overhead to these hot-spot routines for this purpose?
> >
> 
> Sizing the overhead: workflows right now don't end with COPY FREEZE - you
> need another VACUUM to set maps.
> Anything that lets you skip that VACUUM (and faster than that VACUUM
> itself) is helping. You specifically asked for it to be skippable with
> FREEZE anyway.

Tom's point was that the routines I was suggesting to adapt above aren't
just used for COPY FREEZE.

Greetings,

Andres Freund

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