[GitHub] [lucene-solr] s1monw commented on a change in pull request #2214: LUCENE-9674:Faster advance on Vector Values

[GitBox <gi...@apache.org>]

s1monw commented on a change in pull request #2214:
URL: https://github.com/apache/lucene-solr/pull/2214#discussion_r560189755



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File path: lucene/core/src/java/org/apache/lucene/codecs/lucene90/Lucene90VectorReader.java
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@@ -387,8 +387,40 @@ public int nextDoc() {
 
     @Override
     public int advance(int target) throws IOException {
-      // We could do better by log-binary search in ordToDoc, but this is never used
-      return slowAdvance(target);
+      assert docID() < target;
+      int idx = binarySearch(target);

Review comment:
       I wonder if we can simply use `Arrays.binarySearch(fieldEntry.ordToDoc, ord + 1 ,fieldEntry.ordToDoc.length - 1, target);` here?




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