jpountz commented on a change in pull request #443:
URL: https://github.com/apache/lucene/pull/443#discussion_r752431752
##########
File path:
lucene/facet/src/java/org/apache/lucene/facet/taxonomy/FastTaxonomyFacetCounts.java
##########
@@ -69,31 +69,34 @@ public FastTaxonomyFacetCounts(
}
private final void count(List<MatchingDocs> matchingDocs) throws IOException
{
+ if (matchingDocs.isEmpty()) {
+ return;
+ }
+
+ boolean useBinaryDv =
FacetUtils.usesOlderBinaryOrdinals(matchingDocs.get(0).context.reader());
+
for (MatchingDocs hits : matchingDocs) {
- BinaryDocValues dv =
hits.context.reader().getBinaryDocValues(indexFieldName);
- if (dv == null) { // this reader does not have DocValues for the
requested category list
+ assert useBinaryDv ==
FacetUtils.usesOlderBinaryOrdinals(hits.context.reader());
Review comment:
Ah, you are right. I got confused because this comment was linked to a
previous version of your code that didn't use `FacetUtil#loadOrdinalValues` yet!
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