message: remove the to_string equality requirement. the string rendering is serialized as aliases as some components and it changes too often be a reliable indicator of a structural serialization change.
diff: @@ -77,15 +77,12 @@ TEST_CASE("Test deserialized plans from file", "[.][serialization]") {
  Planner planner(*con.context);
  planner.CreatePlan(move(p.statements[0]));
  auto expected_plan = move(planner.plan);
  -
  - PlanDeserializationState state(*con.context);
  - auto deserialized_plan = LogicalOperator::Deserialize(deserializer, state);
  - REQUIRE(deserialized_plan->ToString() == expected_plan->ToString());
  -
  expected_plan->ResolveOperatorTypes();
  auto expected_results = con.context->Query(make_unique<LogicalPlanStatement>(move(expected_plan)), false);
  REQUIRE_NO_FAIL(*expected_results);
  + PlanDeserializationState state(*con.context);
  + auto deserialized_plan = LogicalOperator::Deserialize(deserializer, state);
  deserialized_plan->ResolveOperatorTypes();
  auto deserialized_results =
  con.context->Query(make_unique<LogicalPlanStatement>(move(deserialized_plan)), false);
  