mikemccand commented on a change in pull request #131:
URL: https://github.com/apache/lucene/pull/131#discussion_r634369094
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File path:
lucene/facet/src/test/org/apache/lucene/facet/TestLongValueFacetCounts.java
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@@ -429,15 +429,15 @@ public void testRandomMultiValued() throws Exception {
int expectedChildCount = 0;
int expectedTotalCount = 0;
for (int i = 0; i < valueCount; i++) {
- if (values[i] != null) {
+ if (values[i] != null && values[i].length > 0) {
Review comment:
I *think* if a single document contains the same numeric value more than
once, indexed as a `SortedNumericDocValuesField`, Lucene will indeed index that
number multiple times for that document, and then this facet counting
implementation will count it multiple times for that one value, right?
Or does Lucene de-dup such duplicate numeric values in one document? I'm
not certain :)
Ideally, it should only count that value once for that document, but it
over-counts today.
However, this is a different bug than what this PR is fixing -- so let's
keep this PR about the original bug of not overcounting the `FacetResult.value`?
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