Amir Hadadi created LUCENE-8213:
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Summary: offload caching to a dedicated threadpool
Key: LUCENE-8213
URL: https://issues.apache.org/jira/browse/LUCENE-8213
Project: Lucene - Core
Issue Type: Improvement
Components: core/query/scoring
Affects Versions: 7.2.1
Reporter: Amir Hadadi
IndexOrDocValuesQuery allows to combine non selective range queries with a
selective lead iterator in an optimized way. However, the range query at some
point gets cached by a querying thread, which negates the optimization of
IndexOrDocValuesQuery for that specific query.
It would be nice to see a caching implementation that offloads to a different
thread pool, so that queries involving IndexOrDocValuesQuery would have
consistent performance characteristics.
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