jpountz commented on code in PR #1068:
URL: https://github.com/apache/lucene/pull/1068#discussion_r966192242
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lucene/core/src/java/org/apache/lucene/search/ConjunctionDISI.java:
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@@ -281,6 +281,12 @@ private int doNext(int doc) throws IOException {
advanceLead:
for (; ; doc = lead.nextDoc()) {
if (doc >= minLength) {
+ if (doc != NO_MORE_DOCS) {
+ lead.advance(NO_MORE_DOCS);
+ }
+ for (BitSetIterator iterator : bitSetIterators) {
+ iterator.setDocId(NO_MORE_DOCS);
+ }
Review Comment:
The `if` statement makes sense to me, but I'm curious how you managed to hit
this case. This suggests that we create BitSets whose size is not `maxDoc`, do
you know where this happens?
The `for` loop should be unnecessary, there is no guarantee that all sub
iterators advance to `NO_MORE_DOCS`. If this causes problems, then it means we
have another bug somewhere else?
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