msokolov commented on code in PR #14097:
URL: https://github.com/apache/lucene/pull/14097#discussion_r1905495877
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lucene/core/src/java/org/apache/lucene/util/hnsw/IncrementalHnswGraphMerger.java:
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@@ -63,41 +62,38 @@ public IncrementalHnswGraphMerger(
/**
* Adds a reader to the graph merger if it meets the following criteria: 1.
Does not contain any
- * deleted docs 2. Is a HnswGraphProvider/PerFieldKnnVectorReader 3. Has the
most docs of any
- * previous reader that met the above criteria
+ * deleted docs 2. Is a HnswGraphProvider 3. Has the most docs of any
previous reader that met the
+ * above criteria
*/
@Override
public IncrementalHnswGraphMerger addReader(
KnnVectorsReader reader, MergeState.DocMap docMap, Bits liveDocs) throws
IOException {
- KnnVectorsReader currKnnVectorsReader = reader;
- if (reader instanceof PerFieldKnnVectorsFormat.FieldsReader
candidateReader) {
- currKnnVectorsReader = candidateReader.getFieldReader(fieldInfo.name);
+ if (!noDeletes(liveDocs) || !(reader instanceof HnswGraphProvider)) {
Review Comment:
hah, true. Not sure where this came from - will change to `hasDeletes`. Q:
is it truly necessary to check every bit of liveDocs? If we have a non-null
liveDocs doesn't that imply one of the bits will be zero?
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