[odb-users] Composite primary key support

[fforcus at rambler.ru]

I have tried to generate database scheme for class Composite which have 
composite primary key:
 
#pragma db value
class CompositeKey {
public:
	CompositeKey () {
	}

	int first;
	int second;
};

#pragma db object pointer(*)
class Composite {
public:
	Composite() {
	}

	#pragma db id
	CompositeKey id;
};

Generated scheme is (for SQLite):

CREATE TABLE "Composite" (
  "id_first" INTEGER NOT NULL,
  "id_second" INTEGER NOT NULL);

I was expecting scheme like:

CREATE TABLE "Composite" (
  "id_first" INTEGER NOT NULL,
  "id_second" INTEGER NOT NULL,
  PRIMARY KEY("id_first", "id_second"));

When generate ODB code for class which contains vector of Composite 
pointer:

#pragma db object
class Container {
public:
	Container() {
	}

	#pragma db id
	int id;

	std::vector<Composite* > values;
};

I got error: unable to map C++ type '::__gnu_cxx::new_allocator< 
::Composite* >::value_type' used in data member 'values' to a database 
type

Is possible to use composite value as primary key?