I need to create a map, from integers to sets of tuples, the tuples in a single set have the same size. The problem is that the size of a tuple and its parameter types can be determined at runtime, not compile time. I am imagining something like:

std::map<int, std::set<boost::tuple> >

but not exctly sure how to exactly do this, bossibly using pointers.

The purpose of this is to create temporary relations (tables), each with a unique identifier (key), maybe you have another approach.