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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4859) Expose more stats on IndexReader
Date Wed, 20 Mar 2013 15:23:15 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607709#comment-13607709
] 

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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