On Sat, Oct 22, 2016 at 11:18:28PM +0300, Greg Stark wrote:
> On Fri, Oct 21, 2016 at 9:03 PM, Stephen Frost <sfr...@snowman.net> wrote:
> > WARNING: The following essential packages will be removed.
> > This should NOT be done unless you know exactly what you are doing!
> >   login
> > 0 upgraded, 0 newly installed, 1 to remove and 71 not upgraded.
> > After this operation, 1,212 kB disk space will be freed.
> > You are about to do something potentially harmful.
> > To continue type in the phrase 'Yes, do as I say!'
> Another case was:
>    glxgears -iacknowledgethatthistoolisnotabenchmark
> Which was required to get it to print the FPS for a while. The problem
> -- and also the advantage -- of this is that it's scriptable. That
> means people can still put it in recipe books and scripts and others
> can copy it without being aware what it does or even that they're
> doing it.
> I think the apt-get behaviour was specifically designed to ensure it
> couldn't easily be put into a script which I would have said was
> desirable -- except I suspect there are situations where Postgres
> database scripts need to do a resetxlog. I'm not sure I can think of
> any examples offhand but I wouldn't be too surprised.

Yes, pg_upgrade has eight calls to pg_resetxlog to set various value.

  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

+ As you are, so once was I.  As I am, so you will be. +
+                      Ancient Roman grave inscription +

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