message: Limit percent requires brackets in the ToString code
diff: @@ -89,7 +89,7 @@ string QueryNode::ResultModifiersToString() const {
  } else if (modifier.type == ResultModifierType::LIMIT_PERCENT_MODIFIER) {
  auto &limit_p_modifier = (LimitPercentModifier &)modifier;
  if (limit_p_modifier.limit) {
  - result += " LIMIT " + limit_p_modifier.limit->ToString() + " %";
  + result += " LIMIT (" + limit_p_modifier.limit->ToString() + ") %";
  }
  if (limit_p_modifier.offset) {
  result += " OFFSET " + limit_p_modifier.offset->ToString();
  