Package "cl-postmodern"

Common Lisp library for interacting with PostgreSQL databases
Features efficient communication with the database server without need for
foreign libraries, support for UTF-8 on Unicode-aware Lisp implementations,
a syntax for mixing SQL and Lisp code, convenient support for prepared
statements and stored procedures, a metaclass for simple database-access
objects

The biggest differences between this library and CLSQL/CommonSQL are that
Postmodern has no intention of being portable across different SQL
implementations (it embraces non-standard Postgres features), and
approaches extensions like lispy SQL and database access objects in a quite
different way. This library was written because the CLSQL approach did not
really work for me, your mileage may vary.