[jira] [Updated] (LUCENE-8007) Require that codecs always store totalTermFreq, sumDocFreq and sumTotalTermFreq

["Adrien Grand (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-8007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adrien Grand updated LUCENE-8007:
---------------------------------
    Attachment: LUCENE-8007.patch

Here is a patch. The following index statistics are now required:
 - Terms.size()
 - Terms.getSumDocFreq()
 - Terms.geDocCount()
 - TermsEnum.totalTermFreq() if freqs are stored
 - Terms.getSumTotalTermFreq() if freqs are stored

> Require that codecs always store totalTermFreq, sumDocFreq and sumTotalTermFreq
> -------------------------------------------------------------------------------
>
>                 Key: LUCENE-8007
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8007
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>             Fix For: master (8.0)
>
>         Attachments: LUCENE-8007.patch
>
>
> Javadocs allow codecs to not store some index statistics. Given discussion that occurred on LUCENE-4100, this was mostly implemented this way to support pre-flex codecs. We should now require that all codecs store these statistics.



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