CREATE OR REPLACE FUNCTION to_bytea(integer, integer) RETURNS bytea
    AS '@MODULEDIR@/libadamodule', 'to_bytea'
    LANGUAGE C STRICT;

CREATE OR REPLACE FUNCTION get_x(bytea) RETURNS integer
    AS '@MODULEDIR@/libadamodule', 'get_x'
    LANGUAGE C STRICT;

CREATE OR REPLACE FUNCTION get_y(bytea) RETURNS integer
    AS '@MODULEDIR@/libadamodule', 'get_y'
    LANGUAGE C STRICT;