Function pq_sys::PQfn

pub unsafe extern "C" fn PQfn(
    conn: *mut PGconn,
    fnid: c_int,
    result_buf: *mut c_int,
    result_len: *mut c_int,
    result_is_int: c_int,
    args: *const PQArgBlock,
    nargs: c_int
) -> *mut PGresult