WANDScorer should support two-phase iterator [LUCENE-8806]
Open
legacy-jira-priority:Major
type:enhancement
- Dominant language
- Java
- Stars
- 3.6k
- Forks
- 1.4k
- Avg merge
- 2d 11h
- Merged PRs (30d)
- 88
Description
Following #9815 the WANDScorer should leverage two-phase iterators in order to be faster when used in conjunctions.
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Migrated from [LUCENE-8806](https://issues.apache.org/jira/browse/LUCENE-8806) by Jim Ferenczi (@jimczi), updated Jul 05 2022
Attachments: [LUCENE-8806.patch](https://apache.github.io/lucene-jira-archive/attachments/LUCENE-8806/LUCENE-8806.patch) (versions: 2)
Contributor guide
Research direction
Start with WANDScorer and review issue #9815 for the preceding iterator work; the attached LUCENE-8806.patch is also relevant. Determine how WANDScorer is used in conjunctions, then verify that two-phase iterators are supported and that the relevant conjunction behavior is covered by the project's tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- backend, search
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 28/100