message: fix(Query): fix path func get vid_ls proj idx (0->i)
diff: @@ -2850,7 +2850,7 @@ void GeneralEvaluation::getFinalResult(ResultSet &ret_result)
  // cout << endl;
  // vid
  - if (proj[0].aggregate_type != QueryTree::ProjectionVar::ppr_type)
  + if (proj[i].aggregate_type != QueryTree::ProjectionVar::ppr_type)
  {
  if (proj[i].path_args.dst[0] == '?') // dst is a variable
  {
  