Pulkitg64 commented on code in PR #12857:
URL: https://github.com/apache/lucene/pull/12857#discussion_r1410805933
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lucene/core/src/java/org/apache/lucene/search/AbstractKnnVectorQuery.java:
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@@ -118,13 +118,38 @@ private TopDocs getLeafResults(LeafReaderContext ctx,
Weight filterWeight) throw
return NO_RESULTS;
}
- BitSet acceptDocs = createBitSet(scorer.iterator(), liveDocs, maxDoc);
- int cost = acceptDocs.cardinality();
+ DocIdSetIterator iterator = scorer.iterator();
+ BitSet bitSet =
+ iterator instanceof BitSetIterator
+ ? ((BitSetIterator) iterator).getBitSet()
+ : BitSet.of(iterator, maxDoc);
+ Bits acceptDocs =
+ new Bits() {
+ @Override
+ public boolean get(int index) {
+ return liveDocs != null ? liveDocs.get(index) & bitSet.get(index)
: bitSet.get(index);
+ }
+
+ @Override
+ public int length() {
+ return bitSet.cardinality();
+ }
+ };
Review Comment:
Here we are implementing the ```Bits``` interface that's why we need to
override both functions.
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