uschindler commented on code in PR #12436:
URL: https://github.com/apache/lucene/pull/12436#discussion_r1276161543
##########
lucene/core/src/java/org/apache/lucene/codecs/lucene95/Lucene95HnswVectorsFormat.java:
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@@ -185,6 +188,11 @@ public KnnVectorsReader fieldsReader(SegmentReadState
state) throws IOException
return new Lucene95HnswVectorsReader(state);
}
+ @Override
+ public int getMaxDimensions(String fieldName) {
+ return MAX_DIMENSIONS;
+ }
Review Comment:
In my opinion, there is duplicate information:
- The `DEFAULT_MAX_DIMENSIONS` in the abstract base class if fine as
*public* constant. It should be returned by the default implementation.
- The default impl in base class should maybe only be in 9.x. In main branch
(10.x) maybe the default impl should go away and getting abstract.
- the `Lucene95HnswVectorsFormat#MAX_DIMENSIONS` constant should simply
return 1024 without a constant. I tend to make this explicit, because if we
change the default in base class later, the HNSW codec should keep its own
limit.
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