[LUCENE-10046] StringValueFacetCounts can incorrectly count in "sparse" counting cases

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 9.0, 8.10
• Fix Version/s: 9.0, 8.9
• Component/s: modules/facet
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Greg Miller
• Created: 07/Aug/21 00:51
• Updated: 28/Aug/22 16:24
• Resolved: 07/Aug/21 14:37

Description

StringValueFacetCounts incorrectly skips global ordinal mapping in one counting execution path, when the number of hits is very sparse relative to the cardinality of the field being counted. 

Issue Links

• links to: GitHub Pull Request #236
• links to: GitHub Pull Request #2549