chef-client

+deb     http://apt.postgresql.org/pub/repos/apt precise-pgdg main 9.3


Recipe: postgresql::client
  * package[postgresql-client-9.1] action install
    - install version 9.1.11-1.pgdg12.4+1 of package postgresql-client-9.1

  * package[libpq-dev] action install
    - install version 9.3.2-1.pgdg12.4+1 of package libpq-dev

Recipe: postgresql::server_debian
  * package[postgresql-9.1] action install


---

chef@cheftests:~$ psql --version
psql (PostgreSQL) 9.1.11

database.rb

# recipes/database.rb

node.override[:postgresql][:version] = '9.3'

puts "------------------- BEFORE INCLUSION: postgres version #{node[:postgresql][:version]}"
# => 9.3

include_recipe 'postgresql::server'

puts "------------------- AFTER INCLUSION:  postgres version #{node[:postgresql][:version]}"
# => 9.3

default.rb

# recipes/default.rb

include_recipe 'foo::database'