value_type operator()() {
auto idx = std::dynamic_pointer_cast<InvertedIndex<ValueType>>(_index);
auto v = static_cast<IndexValue<ValueType>*>(_indexValue);
storage::pos_list_t *result = new storage::pos_list_t(idx->getPositionsForKey(v->value));
return result;
}
storage::pos_list_t * operator()() {
auto idx = std::dynamic_pointer_cast<hyrise::storage::PagedIndex>(_index);
auto v = static_cast<IndexValue<ValueType>*>(_indexValue);
return idx->getPositionsForKey(v->value, _column, _inputTable);
}