[LUCENE-4859] Expose more stats on IndexReader

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.3, 6.0
• Component/s: core/index
• Lucene Fields: New, Patch Available
• Assignee: Shai Erera
• Reporter: Shai Erera
• Created: 20/Mar/13 14:44
• Updated: 28/Aug/22 13:41
• Resolved: 20/Mar/13 16:11

Description

IndexReader exposes stats like totalTermFreq(term) and docFreq(term). I'd like to add more stats from Terms, e.g. getDocCount/getSumDocFreq/getSumTotalTermFreq(field) for convenience. The implementation is very easy to do on CompositeReader, so I'll add these impls to BaseCompositeReader. I'll attach a patch shortly.