void do_bind(statement& st, int)
{
st.use_value(st.use_pos(this->name_), converter<T>::from(this->value_));
}
void do_bind(statement& st, int pos)
{
st.use_value(pos, converter<T>::from(this->value_));
}
void do_bind(statement& st, int)
{
st.use_value(st.use_pos(this->name_), converter<T>::from(this->value_));
}
void do_bind(statement& st, int pos)
{
st.use_value(pos, converter<T>::from(this->value_));
}