s1monw commented on code in PR #12829:
URL: https://github.com/apache/lucene/pull/12829#discussion_r1434195239
##########
lucene/core/src/java/org/apache/lucene/index/IndexingChain.java:
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@@ -219,15 +224,41 @@ private Sorter.DocMap maybeSortSegment(SegmentWriteState
state) throws IOExcepti
}
LeafReader docValuesReader = getDocValuesLeafReader();
-
+ Function<IndexSorter.DocComparator, IndexSorter.DocComparator>
comparatorWrapper = in -> in;
+
+ if (state.segmentInfo.getHasBlocks() && state.fieldInfos.getParentField()
!= null) {
+ final DocIdSetIterator readerValues =
+
docValuesReader.getNumericDocValues(state.fieldInfos.getParentField());
+ if (readerValues == null) {
+ throw new CorruptIndexException(
+ "missing doc values for parent field \"" +
state.fieldInfos.getParentField() + "\"",
+ "IndexingChain");
+ }
+ BitSet parents = BitSet.of(readerValues, state.segmentInfo.maxDoc());
+ comparatorWrapper =
+ in ->
+ (docID1, docID2) ->
+ in.compare(parents.nextSetBit(docID1),
parents.nextSetBit(docID2));
+ }
+ if (state.segmentInfo.getHasBlocks()
+ && state.fieldInfos.getParentField() == null
+ && indexCreatedVersionMajor >= Version.LUCENE_10_0_0.major) {
+ throw new CorruptIndexException(
+ "parent field is not set but the index has blocks.
indexCreatedVersionMajor: "
+ + indexCreatedVersionMajor,
+ "IndexingChain");
Review Comment:
Oh yeah but this check only happens when you use sorting... I will fix the
wording
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