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https://issues.apache.org/jira/browse/LUCENE-5474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13913558#comment-13913558
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Michael McCandless commented on LUCENE-5474:
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Thanks Rob, this looks good. Maybe we could fold it in as a just another
method on the existing SimpleFacetsExample.java, instead of making a new class?
> Add example for retrieving facet counts without retrieving documents
> --------------------------------------------------------------------
>
> Key: LUCENE-5474
> URL: https://issues.apache.org/jira/browse/LUCENE-5474
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/facet
> Affects Versions: 4.7
> Reporter: Rob Audenaerde
> Attachments: FacetOnlyExample.java
>
>
> In the examples of facetting the {{FacetsCollector.search()}} is used. There
> are use cases where you do not need the documents that match the search.
> It would be nice if there is an example showing this.
> Basically, it comes down to using {{searcher.search(query, null /* Filter */,
> facetCollector)}}
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