gf2121 commented on code in PR #14312:
URL: https://github.com/apache/lucene/pull/14312#discussion_r1987237995
##########
lucene/core/src/java/org/apache/lucene/search/DenseConjunctionBulkScorer.java:
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@@ -117,6 +107,65 @@ private static int advance(FixedBitSet set, int i) {
}
}
+ private int scoreWindow(
+ LeafCollector collector, Bits acceptDocs, List<DocIdSetIterator>
iterators, int min, int max)
+ throws IOException {
+
+ // Advance all iterators to the first doc that is greater than or equal to
min. This is
+ // important as this is the only place where we can take advantage of a
large gap between
+ // consecutive matches in any clause.
+ for (DocIdSetIterator iterator : iterators) {
+ if (iterator.docID() >= min) {
+ min = iterator.docID();
+ } else {
+ min = iterator.advance(min);
+ }
+ }
+ if (min >= max) {
+ return min;
+ }
+
+ int bitsetWindowMax = (int) Math.min(max, (long) min + WINDOW_SIZE);
+
+ if (acceptDocs == null) {
+ int minDocIDRunEnd = max;
+ for (DocIdSetIterator iterator : iterators) {
+ if (iterator.docID() > min) {
+ minDocIDRunEnd = min;
+ break;
+ } else {
+ minDocIDRunEnd = Math.min(minDocIDRunEnd, iterator.docIDRunEnd());
+ }
+ }
+
+ if (minDocIDRunEnd >= bitsetWindowMax) {
Review Comment:
> I would like to avoid collecting tiny windows of doc IDs at once, so that
collectors can feel free to apply logic that has some overhead in
LeafCollector#collect(DocIdStream) (e.g.
https://github.com/apache/lucene/pull/14273/files#diff-05525bb5769d4251279bcd9c76d259f8eb451a16075af357e69bd98890c3db5bR257).
Good point, thanks!
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