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https://issues.apache.org/jira/browse/LUCENE-4859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607709#comment-13607709
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Robert Muir commented on LUCENE-4859:
-------------------------------------
I think maybe it should be final on AtomicReader too, as its just a sugar API
for terms(field) + ....
this way filterreaders are less overwhelmed and there is no possibility of
inconsistency.
Really if a reader returns anything that would be inconsistent with its Terms,
its wrong, so why give it the chance :)
> Expose more stats on IndexReader
> --------------------------------
>
> Key: LUCENE-4859
> URL: https://issues.apache.org/jira/browse/LUCENE-4859
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/index
> Reporter: Shai Erera
> Assignee: Shai Erera
> Attachments: LUCENE-4859.patch
>
>
> IndexReader exposes stats like totalTermFreq(term) and docFreq(term). I'd
> like to add more stats from Terms, e.g.
> getDocCount/getSumDocFreq/getSumTotalTermFreq(field) for convenience. The
> implementation is very easy to do on CompositeReader, so I'll add these impls
> to BaseCompositeReader. I'll attach a patch shortly.
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