iverase commented on a change in pull request #1866:
URL: https://github.com/apache/lucene-solr/pull/1866#discussion_r489412779
##########
File path: lucene/core/src/java/org/apache/lucene/document/ShapeQuery.java
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@@ -265,10 +265,20 @@ private Scorer getSparseScorer(final LeafReader reader,
final Weight weight, fin
final DocIdSetIterator iterator = new BitSetIterator(result, cost[0]);
return new ConstantScoreScorer(weight, boost, scoreMode, iterator);
}
- final DocIdSetBuilder docIdSetBuilder = new
DocIdSetBuilder(reader.maxDoc(), values, query.getField());
- values.intersect(getSparseVisitor(query, docIdSetBuilder));
- final DocIdSetIterator iterator = docIdSetBuilder.build().iterator();
- return new ConstantScoreScorer(weight, boost, scoreMode, iterator);
+ if (values.getDocCount() << 2 < values.size()) {
+ // we use a dense structure so we can skip already visited documents
+ final FixedBitSet result = new FixedBitSet(reader.maxDoc());
Review comment:
Using a `SparseFixedBitSet` the gain is not so significant expect for
complex queries:
```
|point|intersects|0.00|0.00|-2%|347.46|356.09|-2%|2644|2644| 0%|
|box|intersects|5.57|5.64|-1%|37.86|38.35|-1%|33081264|33081264| 0%|
|distance|intersects|5.33|5.25| 2%|18.72|18.42| 2%|64062400|64062400| 0%|
|poly 10|intersects|4.73|4.51| 5%|18.00|17.19| 5%|59064569|59064569| 0%|
|polyMedium|intersects|0.43|0.34|24%|26.53|21.41|24%|528812|528812| 0%|
|polyRussia|intersects|1.68|1.10|52%|6.87|4.51|52%|244848|244848| 0%|
```
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