iter

Author: benwtrent

server/src/main/java/org/elasticsearch/index/codec/vectors/IVFVectorsReader.java

@@ -283,6 +283,9 @@ public final void search(String field, float[] target, KnnCollector knnCollector
         long expectedDocs = 0;
         long actualDocs = 0;
         // initially we visit only the "centroids to search"
+        // Note, numCollected is doing the bare minimum here.
+        // TODO do we need to handle nested doc counts similarly to how we handle
+        // filtering? E.g. keep exploring until we hit an expected number of parent documents vs. child vectors?
         while (centroidQueue.size() > 0 && centroidsVisited < nProbe && knnCollectorImpl.numCollected() < knnCollector.k()) {
             ++centroidsVisited;
             // todo do we actually need to know the score???