TermQuery can rewrite to MatchAll/No DocsQuery
Open
type:enhancement
- Dominant language
- Java
- Stars
- 3.6k
- Forks
- 1.4k
- Avg merge
- 2d 11h
- Merged PRs (30d)
- 88
Description
### Description
In case a `Term` is indexed for every document (in a segment) we could rewrite `TermQuery` for that to `MatchAllDocsQuery` easily by looking at term statistics. Are we trying to avoid looking up terms during rewrite or something?
Contributor guide
Research direction
Start by reading the TermQuery rewrite path and the term-statistics APIs it can access. Determine whether segment-level document-frequency statistics can identify terms present in every document or absent from all documents, and define tests that verify any MatchAllDocsQuery or NoDocsQuery rewrite without changing other query behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- search
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100