Expand description
In-memory delta index for SPFresh streaming inserts.
Fresh vectors accumulate here until DeltaIndex::is_full() signals that
compaction should flush them into the main HNSW. Tombstones are lazily
tracked here and filtered at query time.
Structsยง
- Delta
Index - Secondary in-memory index that absorbs fresh inserts before they are patched into the main HNSW graph.