mayya-sharipova commented on a change in pull request #1903:
URL: https://github.com/apache/lucene-solr/pull/1903#discussion_r493568956
##########
File path:
lucene/core/src/test/org/apache/lucene/search/TestFieldSortOptimizationSkipping.java
##########
@@ -432,7 +439,48 @@ public void testDocSortOptimization() throws IOException {
assertTrue(topDocs.totalHits.value < 10); // assert that very few docs
were collected
}
+ reader.close();
+ dir.close();
+ }
+
+ /**
+ * Test that sorting on _doc works correctly.
+ * This test goes through DefaultBulkSorter::scoreRange, where
scorerIterator is BitSetIterator.
+ * As a conjunction of this BitSetIterator with DocComparator's iterator, we
get BitSetConjunctionDISI.
+ * BitSetConjuctionDISI advances based on the DocComparator's iterator, and
doesn't consider
+ * that its BitSetIterator may have advanced passed a certain doc.
Review comment:
I will create an issue for this.
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