gsmiller opened a new pull request #443: URL: https://github.com/apache/lucene/pull/443
# Description In benchmarks, using numeric doc values to store taxonomy facet ordinals shows almost a 400% qps improvement in browse-related taxonomy-based tasks (instead of custom delta-encoding into a binary doc values field). This PR changes the encoding of facet ordinals, while maintaining backwards compatibility with 8.x indexes. # Solution This change moves to standard numeric doc values for storing taxonomy ordinals. # Tests No new tests added. Lots of existing test coverage for taxonomy faceting functionality. **NOTE**: I will add new testing that ensures backwards compatibility support remains with 8.x. I'm putting this PR out for feedback while doing so. # Checklist Please review the following and check all that apply: - [x] I have reviewed the guidelines for [How to Contribute](https://wiki.apache.org/lucene/HowToContribute) and my code conforms to the standards described there to the best of my ability. - [x] I have created a Jira issue and added the issue ID to my pull request title. - [x] I have given Lucene maintainers [access](https://help.github.com/en/articles/allowing-changes-to-a-pull-request-branch-created-from-a-fork) to contribute to my PR branch. (optional but recommended) - [x] I have developed this patch against the `main` branch. - [x] I have run `./gradlew check`. - [ ] I have added tests for my changes. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
