Greg Miller created LUCENE-10070:
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Summary: "count all" faceting functionality counts deleted docs
for multiple implementations
Key: LUCENE-10070
URL: https://issues.apache.org/jira/browse/LUCENE-10070
Project: Lucene - Core
Issue Type: Bug
Components: modules/facet
Reporter: Greg Miller
A few different {{Facets}} implementations supporting a "count all" style
constructor that allows the user to not pass in a {{FacetsCollector}} instance.
It advertises that it's equivalent to using a {{FacetsCollector}} populated
with a {{MatchAllDocsQuery}}, but more efficient. It looks like, with the
exception of {{FastTaxonomyFacetCounts}}, none of the implementations correctly
account for deleted documents (have a look at {{FastTaxonomyFacetCounts}} for a
correct example that consults "live docs."
>From what I can tell, the affected implementations are:
* SortedSetDocValueFacetCounts
* ConcurrentSortedSetDocValueFacetCounts
* LongValueFacetCounts
* StringValueFacetCounts
I'll attach a PR shortly illustrating unit tests I wrote that confirm the bug.
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