[GitHub] [lucene] rmuir commented on a diff in pull request #12055: Better skipping for multi-term queries with a FILTER rewrite.

[via GitHub]

rmuir commented on code in PR #12055:
URL: https://github.com/apache/lucene/pull/12055#discussion_r1110449800


##########
lucene/core/src/java/org/apache/lucene/search/MultiTermQueryConstantScoreWrapper.java:
##########
@@ -183,23 +182,31 @@ private WeightOrDocIdSet rewrite(LeafReaderContext 
context) throws IOException {
           }
           Query q = new ConstantScoreQuery(bq.build());
           final Weight weight = searcher.rewrite(q).createWeight(searcher, 
scoreMode, score());
-          return new WeightOrDocIdSet(weight);
+          return new WeightOrDocIdSetIterator(weight);
         }
 
         // Too many terms: go back to the terms we already collected and start 
building the bit set
-        DocIdSetBuilder builder = new 
DocIdSetBuilder(context.reader().maxDoc(), terms);
+        PriorityQueue<PostingsEnum> highFrequencyTerms =
+            new PriorityQueue<PostingsEnum>(collectedTerms.size()) {
+              @Override
+              protected boolean lessThan(PostingsEnum a, PostingsEnum b) {
+                return a.cost() < b.cost();

Review Comment:
   dawid fixed the issue: `!lessThan()` is no longer used in the logic, and the 
"churn" should be avoided I think. 
https://github.com/apache/lucene/commit/ba9fee502b0c18fda312da55c6304ac8a463f509
   
   I was looking at outdated version of this file.



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