[jira] [Created] (LUCENE-6101) Allow the SlowCompositeReaderWrapper and MultiDocValues to accept acceptableOverheadRatio for OrdinalMap

["Joel Bernstein (JIRA)" <ji...@apache.org>]

Joel Bernstein created LUCENE-6101:
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             Summary: Allow the SlowCompositeReaderWrapper and MultiDocValues to accept acceptableOverheadRatio for OrdinalMap
                 Key: LUCENE-6101
                 URL: https://issues.apache.org/jira/browse/LUCENE-6101
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Joel Bernstein
            Priority: Minor


There are use cases where it's useful to be able to trade off performance and memory when accessing top level DocValues ordinals.

This issue adds methods to the SlowCompositeReaderWrapper and MultiDocValues that allow an acceptableOverheadRatio to be passed in and applied to the OrdinalMapping.

If people are ok with this approach I will add tests and performance benchmarks.





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