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https://issues.apache.org/jira/browse/LUCENE-9953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17342119#comment-17342119
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Greg Miller commented on LUCENE-9953:
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Created two PRs: one against {{branch_8x}} (in the older repo) and one against
{{main}}. I don't think there should be any issue fixing in this 8.9 right?
> FacetResult#value is inaccurate in LongValueFacetCounts for multi-value docs
> ----------------------------------------------------------------------------
>
> Key: LUCENE-9953
> URL: https://issues.apache.org/jira/browse/LUCENE-9953
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/facet
> Affects Versions: 8.9
> Reporter: Greg Miller
> Priority: Minor
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> As described in a dev@ list
> [thread|http://mail-archives.apache.org/mod_mbox/lucene-dev/202105.mbox/%3CCANJ0CDo-9zt0U_pxWNOBkfiJpaAXZGGwOEJPnENAP6JzWz_t9Q%40mail.gmail.com%3E],
> the value of {{FacetResult#value}} should reflect the number of docs
> containing at least one value in a given facet path. LongValueFacetCounts
> counts the number of values contributed by all docs. In cases where all docs
> contain a single value, this is fine, but if a doc contains multiple values,
> {{FacetResult#value}} will be incorrect.
> This is a simple fix so I think we can include it in 8.9.
> Note: Spinning this off from LUCENE-9952 since fixing this for all cases
> (particularly SSDV) is trickier and may require non-backwards compatible
> changes.
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