/**
  * Run a select statement against the database.
  *
  * @param string $query
  * @param array $bindings
  * @param bool $useReadPdo
  * @return array 
  * @static 
  */
 public static function select($query, $bindings = array(), $useReadPdo = true)
 {
     //Method inherited from \Illuminate\Database\Connection
     return \Illuminate\Database\PostgresConnection::select($query, $bindings, $useReadPdo);
 }
 /**
  * @param string $channel
  * @param string $payload
  */
 private function publish($channel, $payload)
 {
     $this->connection->select('SELECT pg_notify(:channel,:payload)', compact('channel', 'payload'));
 }