jpountz commented on code in PR #13895:
URL: https://github.com/apache/lucene/pull/13895#discussion_r1797605709
##########
lucene/core/src/java/org/apache/lucene/index/PendingSoftDeletes.java:
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@@ -76,15 +76,14 @@ void onNewReader(CodecReader reader, SegmentCommitInfo
info) throws IOException
hardDeletes.onNewReader(reader, info);
// only re-calculate this if we haven't seen this generation
if (dvGeneration < info.getDocValuesGen()) {
- final DocIdSetIterator iterator =
- FieldExistsQuery.getDocValuesDocIdSetIterator(field, reader);
- int newDelCount;
- if (iterator
- != null) { // nothing is deleted we don't have a soft deletes field
in this segment
- assert info.info.maxDoc() > 0 : "maxDoc is 0";
+ final int newDelCount;
+ var iterator = FieldExistsQuery.getDocValuesDocIdSetIterator(field,
reader);
+ if (iterator != null && iterator.nextDoc() !=
DocIdSetIterator.NO_MORE_DOCS) {
+ iterator = FieldExistsQuery.getDocValuesDocIdSetIterator(field,
reader);
Review Comment:
I wonder if we could change `applySoftDeletes` to start with the current doc
ID so that we don't need to re-create an iterator here?
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