Add quotes around array

lib/dialect/postgres.js

@@ -42,7 +42,7 @@ Postgres.prototype._getParameterValue = function(value) {
     if (_.isArray(value)) {
       // convert each element of the array
       value = _.map(value, this._getParameterValue, this);
-      value = '{' + value.join(', ') + '}';
+      value = '\'{' + value.join(',') + '}\'';
     } else if (_.isFunction(value.toISOString)) {
       // Date object's default toString format does not get parsed well
       // Handle date like objects using toISOString