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https://issues.apache.org/jira/browse/SOLR-2976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13536637#comment-13536637
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Yonik Seeley commented on SOLR-2976:
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bq. Its also the case that if precisionStep != 0, faceting on a single-valued
numeric field builds an UninvertedField (which is unnecessary, as the
fieldcache can handle this just fine).
That shouldn't be the case. The current algorithms check Solr's idea of single
valued vs multi-valued - it doesn't matter how many tokens are indexed per
value.
> stats.facet no longer works on single valued trie fields that don't use
> precision step
> --------------------------------------------------------------------------------------
>
> Key: SOLR-2976
> URL: https://issues.apache.org/jira/browse/SOLR-2976
> Project: Solr
> Issue Type: Bug
> Affects Versions: 3.5
> Reporter: Hoss Man
> Assignee: Ryan McKinley
> Attachments: SOLR-2976_3.4_test.patch, SOLR-2976.patch
>
>
> As reported on the mailing list, 3.5 introduced a regression that prevents
> single valued Trie fields that don't use precision steps (to add course
> grained terms) from being used in stats.facet.
> two immediately obvious problems...
> 1) in 3.5 the stats component is checking if isTokenzed() is true for the
> field type (which is probably wise) but regardless of the precisionStep used,
> TrieField.isTokenized is hardcoded to return true
> 2) the 3.5 stats faceting will fail if the FieldType is multivalued - it
> doesn't check if the SchemaField is configured to be single valued
> (overriding the FieldType)
> so even if a user has something like this in their schema...
> {code}
> <fieldType name="long" class="solr.TrieLongField" precisionStep="0"
> omitNorms="true" />
> <field name="ts" type="long" indexed="true" stored="true" required="true"
> multiValued="false" />
> {code}
> ...stats.facet will not work.
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