OCaml/async implementation of the postgres protocol (i.e., does not use C-bindings to libpq)

postgres_async is an OCaml PostgreSQL client that implements the PostgreSQL protocol rather than binding to the libpq C library. It provides support for regular queries (including support for 'parameters': "SELECT * WHERE a = $1") and COPY IN mode. The interface presented is minimal to keep the library simple for now, though in the future a layer on top may add convenience functions.