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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