mayya-sharipova commented on code in PR #14215:
URL: https://github.com/apache/lucene/pull/14215#discussion_r1949902014


##########
lucene/core/src/java/org/apache/lucene/search/TopKnnCollector.java:
##########
@@ -52,7 +52,7 @@ public boolean collect(int docId, float similarity) {
 
   @Override
   public float minCompetitiveSimilarity() {
-    return queue.size() >= k() ? queue.topScore() : Float.NEGATIVE_INFINITY;
+    return queue.size() >= k() ? Math.nextUp(queue.topScore()) : 
Float.NEGATIVE_INFINITY;

Review Comment:
   May be instead of adding `Math.nextUp` in different collectors, some of 
which we may miss, it is better to update local `minAcceptedSimilarity` in 
`HnswGraphSearcher:searchLevel` ?
   
   ```java
   minAcceptedSimilarity =Math.nextUp( results.minCompetitiveSimilarity());
   ```



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