[LUCENE-9427] Unified highlighter can fail to highlight fuzzy query

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.7
• Component/s: modules/highlighter
• Lucene Fields: New, Patch Available
• Assignee: Unassigned
• Reporter: Julie Tibshirani
• Created: 14/Jul/20 17:39
• Updated: 28/Aug/22 16:04
• Resolved: 06/Aug/20 11:23

Description

If a fuzzy query corresponds to an exact match (for example it has with maxEdits: 0), then the unified highlighter doesn't produce highlights for the matching terms.

I think this is due to the fact that when visiting a fuzzy query, the exact terms are now consumed separately from automata. The unified highlighter doesn't account for the terms and misses highlighting them.

Issue Links

• links to: GitHub Pull Request #1671