Hugo hvanhonacker

Install postgresql-9.4

$ sudo apt-get install postgresql-9.4

Then psql version should be 9.4.x

$ psql --version

	-- Finding the largest databases in your cluster
	SELECT d.datname AS Name, pg_catalog.pg_get_userbyid(d.datdba) AS Owner,
	CASE WHEN pg_catalog.has_database_privilege(d.datname, 'CONNECT')
	THEN pg_catalog.pg_size_pretty(pg_catalog.pg_database_size(d.datname))
	ELSE 'No Access'
	END AS Size
	FROM pg_catalog.pg_database d
	ORDER BY
	CASE WHEN pg_catalog.has_database_privilege(d.datname, 'CONNECT')
	THEN pg_catalog.pg_database_size(d.datname)

	namespace :qc do
	desc "start queue classic"
	task :start do
	run "nohup sh #{current_path}/qc_worker start > /dev/null 2>&1 &"
	end

	desc "stop queue classic"
	task :stop do
	run "sh #{current_path}/qc_worker stop"
	end