| From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
|---|---|
| To: | David Steele <david(at)pgmasters(dot)net> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgreSQL(dot)org |
| Subject: | Re: Version number for pg_control |
| Date: | 2016-07-15 22:13:22 |
| Message-ID: | 20160715221322.GA174609@alvherre.pgsql |
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| Lists: | pgsql-hackers |
David Steele wrote:
> On 7/15/16 5:47 PM, Alvaro Herrera wrote:
> > I can't quite make up my mind about it. It seems pointless to change
> > it now, but at the same time it seems wrong to let it continue to be
> > unchanged from 9.4.
> >
> > I slightly lean towards changing it in 9.6.
>
> +1 for changing it. However, I don't think it's such a big deal since
> each version since 8.3 (at least) has had a unique catalog version.
>
> Maybe this would affect pg_controldata or other supporting utilities but
> the server itself should not be affected since it also checks the
> catalog version.
I didn't verify pg_resetxlog behavior, but hypothetically running 9.4's
on a 9.5 installation would result in a broken pg_control file.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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