fixed compilation

include/matador/orm/session_query_builder.hpp

@@ -281,7 +281,7 @@ void session_query_builder::on_foreign_object(const char *id, Pointer &, const u
     // create select query
     auto result = matador::query::query::select(generator::columns<typename Pointer::value_type>(schema_, generator::column_generator_options::ForceLazy))
       .from(*foreign_table)
-      .where(column(foreign_table, info->get().primary_key_attribute()->name(), "") == _)
+      .where(column(foreign_table.get(), info->get().primary_key_attribute()->name(), "") == _)
       .prepare(executor_);
     if (!result) {
       throw query_builder_exception(query_build_error::QueryError, result.release_error());

include/matador/query/column.hpp

@@ -41,6 +41,9 @@ public:
   // ReSharper disable once CppNonExplicitConversionOperator
   operator const std::string&() const; // NOLINT(*-explicit-constructor)
 
+private:
+  static query::table* default_table();
+
 private:
   const query::table* table_{nullptr};
   std::string name_;

include/matador/query/join_data.hpp

@@ -10,7 +10,7 @@
 namespace matador::query {
 
 struct join_data {
-  table* join_table{nullptr};
+  const table* join_table{nullptr};
   std::unique_ptr<abstract_criteria> condition;
 };