Install libpqxx-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libpqxx-doc
Description:
C++ library to connect to PostgreSQL (documentation)
C++ library to enable user programs to communicate with the PostgreSQL database back-end. . This package contains documentation and examples.
Homepage: http://pqxx.org
Version: 4.0.1+dfsg3-8
Section: universe/doc