shubhamvishu commented on code in PR #12548:
URL: https://github.com/apache/lucene/pull/12548#discussion_r1342112773
##########
lucene/core/src/java/org/apache/lucene/search/DoubleValuesSource.java:
##########
@@ -172,6 +173,40 @@ public LongValuesSource rewrite(IndexSearcher searcher)
throws IOException {
}
}
+ /**
+ * Returns a DoubleValues instance for computing the vector similarity score
per document against
+ * the byte query vector
+ *
+ * @param ctx the context for which to return the DoubleValues
+ * @param queryVector byte query vector
+ * @param vectorField knn byte field name
+ * @return DoubleValues instance
+ * @throws IOException if an {@link IOException} occurs
+ */
+ public static DoubleValues similarityToQueryVector(
+ LeafReaderContext ctx, byte[] queryVector, String vectorField) throws
IOException {
+ assert
ctx.reader().getFieldInfos().fieldInfo(vectorField).getVectorEncoding()
Review Comment:
Makes sense! But I wonder if thats the case in many places in codebase?. I
think we should rather throw an `IAE` in this case.
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