On Tue, Jun 17, 2014 at 07:12:16PM -0400, Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > On Tue, Jun 17, 2014 at 03:55:02PM -0400, Alvaro Herrera wrote:
> >> Can't you compare it to the historic default value? I mean, add an
> >> assumption that people thus far has never tweaked it.
>
> > Well, if they did tweak it, then they would be unable to use pg_upgrade
> > because it would complain about a mismatch if they actually matched the
> > old and new servers.
>
> What about comparing to the symbolic value LOBLKSIZE? This would make
> pg_upgrade assume that the old installation had been tweaked the same
> as in its own build. This ends up being the same as what you said,
> ie, effectively no comparison ... but it might be less complicated to
> code/understand.
OK, assume the compiled-in default is the value for an old cluster that
has no value --- yeah, I could do that.
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
+ Everyone has their own god. +
