OZO 「お象」
Boost.Asio and libpq based asynchronous PostgreSQL unofficial header-only C++17 client library.
std::pair
External adaptors » STL

std::pair support

#include <ozo/ext/std/pair.h>

std::pair<T1, T2> is defined as a generic composite type of two elements and mapped as PostgreSQL Record type and its array.