Postgres: When quoteIdentifiers is false, don't delete associated attributes from query result

lib/dialects/postgres/query.js

@@ -204,7 +204,7 @@ module.exports = (function() {
           rows.forEach(function(row) {
             Utils._.keys(row).forEach(function(key) {
               var targetAttr = attrsMap[key];
-              if (targetAttr !== key) {
+              if (typeof targetAttr === 'string' && targetAttr !== key) {
                 row[targetAttr] = row[key];
                 delete row[key];
               }