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From "Peter Karich (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (SOLR-153) Facet Index
Date Fri, 15 Oct 2010 17:40:32 GMT

    [ https://issues.apache.org/jira/browse/SOLR-153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12921456#action_12921456
] 

Peter Karich edited comment on SOLR-153 at 10/15/10 1:38 PM:
-------------------------------------------------------------

> It looks like my work pre-dates their work

great ! :-)

Now this is interesting for me, because they say their 'bitset tree' performs nice for non-hierarchical
facets in two cases: when someone needs a combination of facets or 'bitset trees are beneficial
when the facet domain is relatively large'. (Although memory consumption is heavier without
their WAH compression)

How much work would it to integrate your work into facets? E.g. to get an idea of the performance
on real data?

      was (Author: peathal):
    > It looks like my work pre-dates their work

great ! :-)

Now this is interesting for me, because they say their 'bitset tree' performs nice for non-hierarchical
facets in two cases: when someone needs a combination of facets or 'bitset trees are beneficial
when the facet domain is relatively large'. (Although memory consumption is heavier without
their WAH compression)

How much work would it to integrate your work into facets? E.g. to get an idea on real data?
  
> 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, 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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