mirror of https://github.com/apache/lucene.git
cf27af1416
A while back we added an optimized bulk scorer that implements block-max AND, this yielded a good speedup on nightly benchmarks, see annotation `FP` at https://benchmarks.mikemccandless.com/AndHighHigh.html. With this PR, filtered conjunctions now also run through this optimized bulk scorer by doing two things: - It flattens inner conjunctions. This makes queries initially written as something like `+(+term1 +term2) #filter` rewritten to `+term1 +term2 #filter`. - It evaluates queries that have a mix of MUST and FILTER clauses evaluated through `BlockMaxConjunctionBulkScorer` by treating FILTER clauses as scoring clauses that produce a score of 0. |
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README.md
Apache Lucene
Apache Lucene is a high-performance, full-featured text search engine library written in Java.
Online Documentation
This README file only contains basic setup instructions. For more comprehensive documentation, visit:
- Latest Releases: https://lucene.apache.org/core/documentation.html
- Nightly: https://ci-builds.apache.org/job/Lucene/job/Lucene-Artifacts-main/javadoc/
- New contributors should start by reading Contributing Guide
- Build System Documentation: help/
- Migration Guide: lucene/MIGRATE.md
Building
Basic steps:
- Install OpenJDK 21.
- Clone Lucene's git repository (or download the source distribution).
- Run gradle launcher script (
gradlew).
We'll assume that you know how to get and set up the JDK - if you don't, then we suggest starting at https://jdk.java.net/ and learning more about Java, before returning to this README.
Contributing
Bug fixes, improvements and new features are always welcome! Please review the Contributing to Lucene Guide for information on contributing.
- Additional Developer Documentation: dev-docs/
Discussion and Support
- Users Mailing List
- Developers Mailing List
- IRC:
#luceneand#lucene-devon freenode.net