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https://issues.apache.org/jira/browse/LUCENE-8007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-8007:
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Attachment: LUCENE-8007.patch
I removed the != 0 checks in checkIndex and added additional checks across the
statistics. I also added assert != -1 in places such as
CompositeReader/TermContext that are summing from subs. Given the value could
previously be -1, it seems good to have these asserts at least for 8.0
> 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
> Priority: Major
> Fix For: master (8.0)
>
> Attachments: LUCENE-8007.patch, LUCENE-8007.patch, LUCENE-8007.patch,
> LUCENE-8007.patch, 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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