Re: BUG #5735: pg_upgrade thinks that it did not start the old server

Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> >> On 10/30/2010 7:33 PM, Dave Page wrote:
> >>> upgrade from a 32bit 8.3 server to a 64 bit 9.0 server, which isn't
> >>> going to work without a dump/restore. With pg_upgrade, the two builds
> >>> need to be from the same platform, same word size, and have the same
> >>> configuration for certain settings like integer_datetimes.
>
> > Can anyone suggest a way pg_upgrade could detect an upgrade from a
> > 32-bit to 64-bit cpu and throw an error?
>
> Surely it does that already, as a result of comparing pg_control
> contents.

Surely it does, but I didn't understand how the user able to run
pg_upgrade?  I see now that he failed before we completed our checks so
he would have gotten an error later if he could have started his server:

    http://archives.postgresql.org/pgsql-bugs/2010-10/msg00282.php

Thanks.

Not sure why he was unable to start the old server, but we decided he
couldn't use pg_upgrade anyway in his setup.

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

  + It's impossible for everything to be true. +