Taogre is a lightweight C++ interface for accessing PostgreSQL database.
Taogre forks the master branch of TaoPQ.
Taogre Source Repo: https://vduckgo.com/fossil/taogre
TaoPQ Source Repo: https://github.com/taocpp/taopq
The main difference is that taogre is not aiming to be a part of a large project, but as a lite standalone library.