Обсуждение: downgrading to 7.3.2 from 7.4.1 under Cygwin
Hi Folks, I've refreshed my Cygwin distribution and haven't noticed that postgres is also being upgradeing. So it has been upgraded to version 7.4.1. Starting "pg_ctl start -D /usr/local/psql/data -m fast 2>&1 &" sends an error message like this: $ FATAL: database files are incompatible with server DETAIL: The data directory was initialized by PostgreSQL version 7.3, which is not compatible with this version 7.4. I'd like to downgrade to 7.3.2 because all my customer run that versin and I have to test my software on that version. Should anybody suggest me ho to do that? I've already rerun Cygwin installer, but since it was running many times the previous config opiton doesn't "remember" my earliest version of postgres. I can't force it to downgrade. :o( It would be very useful to try out 7.4.1 but not on my "production test system". Can I set it up separately on the same cygwin machine? I plan running them separately, but if it is possible to run on separate ports at the same time, than I choose that. Many thanks for helping me -- Együd Csaba
You can choose the PG version using cygwin installer. If you have already PG 7.4 installed, you can select -keep, -reinstall, -source, -7.3.4-2 <-- what you need -Uninstall Regards, Janko Richter Együd Csaba wrote: > Hi Folks, > I've refreshed my Cygwin distribution and haven't noticed that postgres is > also being upgradeing. So it has been upgraded to version 7.4.1. Starting > "pg_ctl start -D /usr/local/psql/data -m fast 2>&1 &" sends an error > message like this: > > $ FATAL: database files are incompatible with server > DETAIL: The data directory was initialized by PostgreSQL version 7.3, which > is not compatible with this version 7.4. > > I'd like to downgrade to 7.3.2 because all my customer run that versin and I > have to test my software on that version. Should anybody suggest me ho to do > that? > I've already rerun Cygwin installer, but since it was running many times the > previous config opiton doesn't "remember" my earliest version of postgres. I > can't force it to downgrade. :o( > <snip>