dsmiley commented on code in PR #3158:
URL: https://github.com/apache/solr/pull/3158#discussion_r1948247603
##########
solr/core/src/java/org/apache/solr/search/facet/FieldUtil.java:
##########
@@ -44,27 +48,49 @@ public static SortedDocValues
getSortedDocValues(SolrIndexSearcher searcher, Str
public static SortedDocValues getSortedDocValues(
QueryContext context, SchemaField field, QParser qparser) throws
IOException {
- SortedDocValues si =
-
context.searcher().getSlowAtomicReader().getSortedDocValues(field.getName());
- // if (!field.hasDocValues() && (field.getType() instanceof StrField ||
field.getType()
- // instanceof TextField)) {
- // }
-
- return si == null ? DocValues.emptySorted() : si;
+ var reader = context.searcher().getSlowAtomicReader();
+ var dv = reader.getSortedDocValues(field.getName());
+ checkDvType(dv, field, reader);
+ return dv == null ? DocValues.emptySorted() : dv;
}
public static SortedSetDocValues getSortedSetDocValues(
QueryContext context, SchemaField field, QParser qparser) throws
IOException {
- SortedSetDocValues si =
-
context.searcher().getSlowAtomicReader().getSortedSetDocValues(field.getName());
- return si == null ? DocValues.emptySortedSet() : si;
+ var reader = context.searcher().getSlowAtomicReader();
+ var dv = reader.getSortedSetDocValues(field.getName());
+ checkDvType(dv, field, reader);
+ return dv == null ? DocValues.emptySortedSet() : dv;
}
public static NumericDocValues getNumericDocValues(
QueryContext context, SchemaField field, QParser qparser) throws
IOException {
- SolrIndexSearcher searcher = context.searcher();
- NumericDocValues si =
searcher.getSlowAtomicReader().getNumericDocValues(field.getName());
- return si == null ? DocValues.emptyNumeric() : si;
+ var reader = context.searcher().getSlowAtomicReader();
+ var dv = reader.getNumericDocValues(field.getName());
+ checkDvType(dv, field, reader);
+ return dv == null ? DocValues.emptyNumeric() : dv;
+ }
+
+ private static void checkDvType(Object dv, SchemaField field, LeafReader
reader) {
Review Comment:
There's wasn't a class cast; there was empty/no data which ultimately leads
to no facet results. That's *worse* than throwing an exception (of whatever
type; no strong opinion from me). This is my primary addition to the PR; don't
*just* fix the wrong algorithm choice, but ensure we throw an exception in
cases that would previously silently produce nothing.
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