upgrade_pg.sh

sudo su - postgres -c "psql template1 -p 5433 -c 'CREATE EXTENSION IF NOT EXISTS hstore;'"
sudo su - postgres -c "psql template1 -p 5433 -c 'CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\";'"
sudo su - postgres -c "service postgresql stop"
sudo su - postgres -c '/usr/lib/postgresql/9.4/bin/pg_upgrade -b /usr/lib/postgresql/9.3/bin -B /usr/lib/postgresql/9.4/bin -d /var/lib/postgresql/9.3/main/ -D /var/lib/postgresql/9.4/main/ -o "-c config_file=/etc/postgresql/9.3/main/postgresql.conf" -O "-c config_file=/etc/postgresql/9.4/main/postgresql.conf"'
 
sudo apt-get remove postgresql-9.3 -y
sudo sed -i "s:5433:5432:g" /etc/postgresql/9.4/main/postgresql.conf
sudo service postgresql restart