[LUCENE-9999] CombinedFieldQuery can fail when document is missing fields

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.10
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Julie Tibshirani
• Created: 12/Jun/21 00:54
• Updated: 28/Aug/22 16:22
• Resolved: 28/Jul/21 08:27

Description

If some documents match but don't contain all fields, then CombinedFieldQuery can fail when attempting to compute norms. This is because MultiFieldNormValues assumes all fields in the document have norms.

Originally surfaced in this Elasticsearch issue: https://github.com/elastic/elasticsearch/issues/74037.

Issue Links

• links to: GitHub Pull Request #185