message: add missing cast to LogicalOperator
diff: @@ -170,7 +170,7 @@ unique_ptr<LogicalOperator> Binder::BindUpdateSet(LogicalOperator *op, unique_pt
  // now create the projection
  auto proj = make_unique<LogicalProjection>(proj_index, std::move(projection_expressions));
  proj->AddChild(move(root));
  - return proj;
  + return unique_ptr_cast<LogicalProjection, LogicalOperator>(move(proj));
  }
  BoundStatement Binder::Bind(UpdateStatement &stmt) {
  