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https://issues.apache.org/jira/browse/SOLR-153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yonik Seeley updated SOLR-153:
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Attachment: facettree.patch
Incomplete brainstorming code, for building the lowest level of the tree only.
Completely untested / uncompiled, no search-side code yet, and all in a single
file.
> Facet Index
> -----------
>
> Key: SOLR-153
> URL: https://issues.apache.org/jira/browse/SOLR-153
> Project: Solr
> Issue Type: New Feature
> Reporter: Yonik Seeley
> Attachments: facettree.patch
>
>
> A facet index, initially for non-hierarchical facets.
> Start with all terms, and a set of documents for each term. Group lower
> level nodes by taking the union of the sets, but keep track of the largest
> set going back all the way to the leaves (the max doc-freq for that node).
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