Signature Description Parameters
size_type
append_index(const IndexType &val);
It appends val to the end of the index column. Returns number of items loaded
Returns number of items loaded
template<typename ITR>
size_type
append_index(Index2D range);
It appends the range begin to end to the end of the index column
Returns number of items loade
TR: Type of the iterator
range: The begin and end iterators for data