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https://issues.apache.org/jira/browse/SOLR-12488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16842357#comment-16842357
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David Smiley commented on SOLR-12488:
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Is this not completely redundant with SOLR-11437 created before and already
linked?
> Rewrite exists field value query to leverage DocValuesFieldExistsQuery and
> NormsFieldExistsQuery
> ------------------------------------------------------------------------------------------------
>
> Key: SOLR-12488
> URL: https://issues.apache.org/jira/browse/SOLR-12488
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: query parsers
> Reporter: Varun Thacker
> Priority: Major
>
> A few of us were discussing at Buzzwords on how a common use case requirement
> is "match documents which have values for a field"
> To do this we need to query "-fq:brand:*" . This query can be slow and can be
> optimized
> We can take advantage of NormsFieldExistsQuery and DocValuesFieldExistsQuery
> to speed up this use-case and not have to resort to WildcardQuery
> Today Solr's schema has doc-values enabled for fields that support it and for
> text fields norms are enabled by default so most users would already have the
> necessary indexed structures
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