fix(sorting): Return only sorting key if order is asc

Author: Marine Ripon

angular-sql-query.js

@@ -464,7 +464,9 @@
     var queryOrder = ' ORDER BY ' + sortParams.map(function (_ref) {
       var key = _ref.key,
           desc = _ref.desc;
-      return key + ' ' + (desc && 'DESC');
+      return desc
+        ? key + ' DESC'
+        : key;
     }).join(',');
 
     return query + queryOrder;