Quoting Tom Lane <tgl@xxxxxxxxxxxxx>:
> Ciprian Popovici <ciprian@xxxxxxxxxx> writes:
> > That is, a 8.0 which started on a 7.4.2 repository. After noticing,
> > I switched back to 7.4.2, but now it gives this error and won't start:
>
> I think you are omitting some relevant information, like what you did
> to force the 8.0 postmaster to start in a wrong-version database. It
> absolutely will not do that by itself --- I can name at least two
> separate checks that are made to prevent this error.
Come to think of it better, at some point I might've switched
repositories with 8.0 still running.
Let me see... I had 7.4.2 (code and repository) installed. The
machine is a rather ancient Red Hat 7.3 (remote, so I can't readily
upgrade it). FWIW, Postgres compilation mentions something about
an outdated Bison.
I compiled 8.0.0. I moved the old Postgres and repository out of the
way. I did make install with 8.0, then su'ed to postgres and did a
fresh initdb. Then loaded a fresh copy of the database from another
machine into the 8.0 repository.
However, people suddenly desired the old 7.4.2 installation alive
for a little more. At which point I tried to switch things back only
to discover the aforementioned error.
--
Ciprian Popovici
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