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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2019/04/10 14:43:00 UTC

[jira] [Created] (LUCENE-8762) Lucene50PostingsReader should specialize reading docs+freqs with impacts

Adrien Grand created LUCENE-8762:
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             Summary: Lucene50PostingsReader should specialize reading docs+freqs with impacts
                 Key: LUCENE-8762
                 URL: https://issues.apache.org/jira/browse/LUCENE-8762
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Adrien Grand


Currently if you ask for impacts, we only have one implementation that is able to expose everything: docs, freqs, positions and offsets. In contrast, if you don't need impacts, we have specialization for docs+freqs, docs+freqs+positions and docs+freqs+positions+offsets.

Maybe we should add specialization for the docs+freqs case with impacts, which should be the most common case, and remove specialization for docs+freqs+positions when impacts are not requested?



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