[jira] [Commented] (LUCENE-4965) Add dynamic numeric range faceting

["Pradeep (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-4965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13827050#comment-13827050 ] 

Pradeep commented on LUCENE-4965:
---------------------------------

Is this code easily portable to Solr 3.6?

> Add dynamic numeric range faceting
> ----------------------------------
>
>                 Key: LUCENE-4965
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4965
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/facet
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: 4.4, 5.0
>
>         Attachments: LUCENE-4965.patch, LUCENE-4965.patch, LUCENE-4965.patch, LUCENE-4965.patch, LUCENE-4965.patch, LUCENE-4965.patch, LUCENE-4965.patch, LUCENE-4965.patch
>
>
> The facet module today requires the app to compute the hierarchy
> at index time, eg a timestamp field might use a year/month/day
> hierarchy.
> While this gives great performance, since it minimizes the search-time
> computation, sometimes it's unfortunately useful/necessary to do things entirely at
> search time, like Solr does.
> E.g. I'm playing with a prototype Lucene search for Jira issues
> and I'd like to add a drill down+sideways for "Updated in past day,
> 2 days, week, month" etc.  But because time is constantly advancing,
> doing this at index time is a not easy ...



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