> I'm wondering if the postgresql packages ought not use the version
> number in the data directory, e.g.: ${pgsql_home}/data80 instead of
> ${pgsql_home}/data. This would ensure that postgresql never tries to

Yes, I'm planning to do this for pgsql packages.

> read data not compatable with that version, and also avoid the risk
> of accidently damaging or deleting one's data after upgrading.


Cheers,
Marc