"philip johnson" <philip.johnson@atempo.com> writes:
> is it possible to have 1 postgresql 6.5.3 and a 7.2 running on a same
> machine (mandrake 8.1) ?
Certainly: give them separate install directories, data directories,
and port numbers, and away you go.
You might have to install one or the other from source rather than use
RPMs, if your RPMs want to install both versions in the same place.
regards, tom lane