[LUCENE-8007] Require that codecs always store totalTermFreq, sumDocFreq and sumTotalTermFreq

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.0
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Adrien Grand
• Created: 24/Oct/17 14:06
• Updated: 28/Aug/22 15:20
• Resolved: 03/Nov/17 03:03

Description

Javadocs allow codecs to not store some index statistics. Given discussion that occurred on LUCENE-4100, this was mostly implemented this way to support pre-flex codecs. We should now require that all codecs store these statistics.