Interesting comments (in mysql.go) :

    // Muahahaha
    func strlen(str *C.char) int {
            gstr := (*[1 << 30]byte)(unsafe.Pointer(str))
            length := 0
            for gstr[length] != 0 {
                    length++
            }
            return length
    }

BTW, is Google planning to make a proper mysql driver in go (implementing database/sql API and not unsafe) ?