| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Petr Jelinek <petr(at)2ndquadrant(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Greg Stark <stark(at)mit(dot)edu>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com> |
| Subject: | Re: Freeze avoidance of very large table. |
| Date: | 2015-10-21 13:11:08 |
| Message-ID: | 20151021131108.GN3485@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
On 2015-10-20 20:35:31 -0400, Simon Riggs wrote:
> On 9 October 2015 at 15:20, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>
> > On Thu, Oct 8, 2015 at 1:52 PM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> > > I don't see the problem? I mean catversion will reliably tell you which
> > format the vm is in?
> >
> > Totally agreed.
> >
>
> This isn't an agreement competition, its a cool look at what might cause
> problems for all of us.
Uh, we form rough concensuses all the time.
> If we want to avoid bugs in future then we'd better start acting like that
> is actually true in practice.
> Why should we wave away this concern? Will we wave away a concern next time
> you personally raise one? Bruce would have me believe that we added months
> onto 9.5 to improve robustness. So lets actually do that. Starting at the
> first opportunity.
Meh. Adding complexity definitely needs to be weighed against the
benefits. As pointed out e.g. by all the multixact issues you mentioned
upthread. In this case your argument for changing the name doesn't seem
to hold much water.
Greetings,
Andres Freund
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