Expose node-postgres directly on the connector

Author: zero5100

lib/postgresql.js

@@ -88,6 +88,9 @@ function PostgreSQL(postgresql, settings) {
 // Inherit from loopback-datasource-juggler BaseSQL
 util.inherits(PostgreSQL, SqlConnector);
 
+// Expose node-postgres directly on the connector for easy access in applications
+PostgreSQL.prototype.postgresql = postgresql;
+
 PostgreSQL.prototype.debug = function() {
   if (this.settings.debug) {
     debug.apply(debug, arguments);