low-level PostgreSQL database driver

 Package pgconn is a low-level PostgreSQL database driver. It operates at
 nearly the same level as the C library libpq. It is primarily intended to
 serve as the foundation for higher level libraries such as
 (https://github.com/jackc/pgx). Applications should handle normal queries
 with a higher level library and only use pgconn directly when required for
 low-level access to PostgreSQL functionality.