added belongs to many eager test loading via sql join (progress)

backends/postgres/src/postgres_connection.cpp

@@ -89,11 +89,6 @@ utils::result<std::unique_ptr<sql::query_result_impl>, utils::error> postgres_co
     return utils::failure(make_error(sql::error_code::FETCH_FAILED, res, conn_, "Failed to fetch", context.sql));
   }
 
-  // const auto is_unknown = std::all_of( context.prototype.begin(), context.prototype.end(), [](const object::attribute_definition &a) {return a.is_null();} );
-  // if (!is_unknown) {
-    // return utils::ok(std::make_unique<sql::query_result_impl>(std::make_unique<postgres_result_reader>(res), context.prototype));
-  // }
-
   std::vector<object::attribute_definition> prototype = context.prototype;
 
   const int num_col = PQnfields(res);