INNER CODE UNIT · C++
total_graph_size
epsilla-cloud/vectordb · engine/db/ann_graph_segment.cpp:220
int64_t total_graph_size = index_->Build(n, vector_column, nullptr, b_params);
// Convert the graph.
if (offset_table_ != nullptr) {
delete[] offset_table_;
}
offset_table_ = new int64_t[n + 1]; // +1 for the last node.
if (neighbor_list_ != nullptr) {
delete[] neighbor_list_;
}
neighbor_list_ = new int64_t[total_graph_size];
int64_t offset = 0;
for (int64_t i = 0; i < n; ++i) {
offset_table_[i] = offset;
auto& knn = index_->nsg.at(i);
for (int64_t j = 0; j < knn.size(); ++j) {
neighbor_list_[offset + j] = knn.at(j);
}