Install both postgis and postgresql-9.1-postgis packages?

Question

I've installed the PostgreSQL package (ver. 9.1) on a Debian 7 server using the command "apt-get install postgresql postgresql-contrib". I now want to install PostGIS as well. Should I install both the "postgis" package and the "postgresql-9.1-postgis" package or just the latter? It's not clear from the descriptions on their Debian wiki pages what the differences are between the two packages.

I ask because I've seen some blog posts where the author has installed both packages but yet on the OpenStreetMap PostGIS wiki page, they just install the postgresql-9.1-postgis package. Yet this Debian page seems to imply that you should install both packages as postgis contains common PostGIS files while postgresql-9.1-postgis contains files that specifically support PostgreSQL 9.1

Thanks.

Answer 1

On my system (unstable), the postgis package installs the utility programs (pgsql2shp,shp2pgsql, etc) and their docs.

The postgresql-9.3-postgis-2.1 package actually installs the postgis libraries and such.

You should be able to only install postgresql-9.x-postgis-2.x as long as you don't need the utility programs or the documentation.