zhaih commented on a change in pull request #442:
URL: https://github.com/apache/lucene/pull/442#discussion_r750733549
##########
File path:
lucene/facet/src/java/org/apache/lucene/facet/taxonomy/directory/TaxonomyIndexArrays.java
##########
@@ -130,15 +125,49 @@ private void initParents(IndexReader reader, int first)
throws IOException {
return;
}
+ if (tryLoadParentUsingTermPosition(reader, first)) {
+ // The parent array is already loaded
+ return;
+ }
+
+ for (LeafReaderContext leafContext : reader.leaves()) {
+ int leafDocNum = leafContext.reader().maxDoc();
+ if (leafContext.docBase + leafDocNum <= first) {
+ // skip this leaf if it does not contain new categories
+ continue;
+ }
+ NumericDocValues parentValues =
+
leafContext.reader().getNumericDocValues(Consts.FIELD_PARENT_ORDINAL_NDV);
Review comment:
Yeah good idea!
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