Hello,
> I want to add a feature in PostgreSQL, and I need use map structure and
> set structure(like STL in C++). Do PostgreSQL have realized these
> structures? Where can I find the functions? What I need in the code is
> just like this: map<char*, set<char*>>, set<char*>
You are looking for a hash table, see under "src/backend/utils/hash/".
--
Fabien.
