msokolov commented on code in PR #932:
URL: https://github.com/apache/lucene/pull/932#discussion_r891169857
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lucene/core/src/java/org/apache/lucene/search/KnnVectorQuery.java:
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@@ -225,6 +225,11 @@ public BitSetIterator getIterator(int contextOrd) {
return new BitSetIterator(bitSets[contextOrd], cost[contextOrd]);
}
+ public void setBitSet(BitSet bitSet, int cost) {
+ bitSets[ord] = bitSet;
Review Comment:
Agreed, the approach of using `Bitset.of` to delegate creation of / access
to a bitset of matching docs for the filter Query seems very promising! It
would enable us to maintain the "user friendly" Query-based API while accessing
underlying Bits when they are available.
I also agree it makes sense to work on that change indepedently / in advance
of the tester changes, although it's a little paradoxical since I doubt we
would have been able to find this without having worked on the testing side
first! Still, to land these changes on lucene/main, I think putting in the
support for BitSet access can come first.
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