ESQL: Improve Lookup Join performance with CachedDirectoryReader#139314
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julian-elastic merged 15 commits intoelastic:mainfrom Jan 9, 2026
Merged
ESQL: Improve Lookup Join performance with CachedDirectoryReader#139314julian-elastic merged 15 commits intoelastic:mainfrom
julian-elastic merged 15 commits intoelastic:mainfrom
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Hi @julian-elastic, I've created a changelog YAML for you. |
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Buildkite benchmark this with esql-joins please |
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Pinging @elastic/es-analytical-engine (Team:Analytics) |
nik9000
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...l/compute/src/main/java/org/elasticsearch/compute/operator/lookup/CachedDirectoryReader.java
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dnhatn
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I've left some comments (apart from Nik's). Thanks, Julian!
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Buildkite benchmark this with esql-joins please |
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LGTM. Thanks for all iterations @julian-elastic
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Buildkite benchmark this with esql-joins please |
nik9000
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Buildkite benchmark this with esql-joins please |
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💚 Build Succeeded
This build ran two esql-joins benchmarks to evaluate performance impact of this PR. History |
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* upstream/main: (76 commits) [Inference API] Get _services skips EIS authorization call if CCM is not configured (elastic#139964) Improve TSDB codec benchmarks with full encoder and compression metrics (elastic#140299) ESQL: Consolidate test `BlockLoaderContext`s (elastic#140403) ESQL: Improve Lookup Join performance with CachedDirectoryReader (elastic#139314) ES|QL: Add more examples for the match operator (elastic#139815) ESQL: Add timezone to add and sub operators, and ConfigurationAware planning support (elastic#140101) ESQL: Updated ToIp tests and generated documentation for map parameters (elastic#139994) Disable _delete_by_query and _update_by_query for CCS/stateful (elastic#140301) Remove unused method ElasticInferenceService.translateToChunkedResults (elastic#140442) logging hot threads on large queue of the management threadpool (elastic#140251) Search functions docs cleanup (elastic#140435) Unmute 350_point_in_time/point-in-time with index filter (elastic#140443) Remove unused methods (elastic#140222) Add CPS and `project_routing` support for `_mvt` (elastic#140053) Streamline `ShardDeleteResults` collection (elastic#140363) Fix Docker build to use --load for single-platform images (elastic#140402) Parametrize + test VectorScorerOSQBenchmark (elastic#140354) `RecyclerBytesStreamOutput` using absolute offsets (elastic#140303) Define bulk float native methods for vector scoring (elastic#139885) Make `TimeSeriesAggregate` `TimestampAware` (elastic#140270) ...
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Jan 12, 2026
…stic#139314) Improve Lookup Join performance by caching objects needed for Lucene Queries. We cache DocValues to improve query performance. Benchmark results show show 5-15% improvement in performance for lookup join with this PR.
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Improve Lookup Join performance by caching objects needed for Lucene Queries.
We cache DocValues to improve query performance. Benchmark results show show 5-15% improvement in performance for lookup join with this PR.
This PR is thoroughly tested by all existing lookup join UTs.
Special thanks to @dnhatn for POC.
Closes #137268