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https://issues.apache.org/jira/browse/SOLR-11706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16278490#comment-16278490
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Yonik Seeley commented on SOLR-11706:
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bq. I'd prefer this interface and some of the related methods on FunctionValues
that take arrays be deprecated out of Lucene.
Yeah, I agree. I've always tried to avoid building on the array based methods
because it felt like we needed something better for multiValued fields &
functions.
> JSON FacetModule can't compute stats (min,max,etc...) on multivalued fields
> ---------------------------------------------------------------------------
>
> Key: SOLR-11706
> URL: https://issues.apache.org/jira/browse/SOLR-11706
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Hoss Man
> Attachments: SOLR-11706.patch
>
>
> While trying to write some tests demonstrating equivalences between the
> StatsComponent and the JSON FacetModule i discovered that the FacetModules
> stat functions (min, max, etc...) don't seem to work on multivalued fields.
> Based on the stack traces, i gather the problem is because the FacetModule
> seems to rely exclusively on using the "Function" parsers to get a value
> source -- apparently w/o any other method of accumulating numeric stats from
> multivalued (numeric) DocValues?
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