Re: Do PostgreSQL have map and set structure(like STL in C++)?

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.