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https://issues.apache.org/jira/browse/SOLR-2412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Toke Eskildsen updated SOLR-2412:
---------------------------------
Attachment: SOLR-2412.patch
Patch updated to Solr 4.6.1 and verified (patching, executing 'ant
run-example', running the sample script, indexing the output and inspecting the
result in a browser) on a clean SVN checkout.
The old patch did not have properly updated build scripts. My apologies to J.L.
Hill and others that might have tried applying it.
> Multipath hierarchical faceting
> -------------------------------
>
> Key: SOLR-2412
> URL: https://issues.apache.org/jira/browse/SOLR-2412
> Project: Solr
> Issue Type: New Feature
> Components: SearchComponents - other
> Affects Versions: 4.0
> Environment: Fast IO when huge hierarchies are used
> Reporter: Toke Eskildsen
> Labels: contrib, patch
> Attachments: SOLR-2412.patch, SOLR-2412.patch, SOLR-2412.patch,
> SOLR-2412.patch, SOLR-2412.patch, SOLR-2412.patch, SOLR-2412.patch
>
>
> Hierarchical faceting with slow startup, low memory overhead and fast
> response. Distinguishing features as compared to SOLR-64 and SOLR-792 are
> * Multiple paths per document
> * Query-time analysis of the facet-field; no special requirements for
> indexing besides retaining separator characters in the terms used for faceting
> * Optional custom sorting of tag values
> * Recursive counting of references to tags at all levels of the output
> This is a shell around LUCENE-2369, making it work with the Solr API. The
> underlying principle is to reference terms by their ordinals and create an
> index wide documents to tags map, augmented with a compressed representation
> of hierarchical levels.
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