Re: The data directory was initialized by PostgreSQL version 7.3,

Bilicki Vilmos wrote:
> Hi all,
>
> I have upgraded my cygwin installation and it has replaced my old 7.3
> postgresql.
>
> My questions are the following:
>
> How can I use the old files with the newer version?
> If this is not possible, how can I migrate my database to a newer version
> without the old database engine?
> If this is not possible how can I downgrade the postgresql to an appropriate
> version? (The setup utility provides only the 7.4 version)
>
> Many thanks for helping me,
>
> Vilmos
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
> joining column's datatypes do not match
>

see:
http://www.postgresql.org/docs/7.4/static/install-upgrading.html