"Andreas Schönbach" <andreasschoenbach@web.de> writes:
> So my question is, if libpq++ isn't supported anymore or if it will be included in later 7.3 versions.
It's not included in the base distribution anymore. You can get it from
gborg.postgresql.org --- but you might want to look at the competing
project libpqxx, available from the same site.
regards, tom lane