[jira] [Resolved] (LUCENE-10550) Add getAllChildren functionality to facets

["Greg Miller (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-10550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Greg Miller resolved LUCENE-10550.
----------------------------------
    Fix Version/s: 9.3
       Resolution: Fixed

Thanks again [~yutinggan] !

> Add getAllChildren functionality to facets
> ------------------------------------------
>
>                 Key: LUCENE-10550
>                 URL: https://issues.apache.org/jira/browse/LUCENE-10550
>             Project: Lucene - Core
>          Issue Type: New Feature
>          Components: modules/facet
>            Reporter: Yuting Gan
>            Priority: Minor
>             Fix For: 9.3
>
>          Time Spent: 2h 40m
>  Remaining Estimate: 0h
>
> Currently Lucene does not support returning range counts sorted by label values, but there are use cases demanding this feature. For example, a user specifies ranges (e.g., [0, 10], [10, 20]) and wants to get range counts without changing the range order. Today we can only call getTopChildren to populate range counts, but it would return ranges sorted by counts (e.g., [10, 20] 100, [0, 10] 50) instead of range values. 
> Lucene has a API, getAllChildrenSortByValue, that returns numeric values with counts sorted by label values, please see [LUCENE-7927|https://issues.apache.org/jira/browse/LUCENE-7927] for details. Therefore, it would be nice that we can also have a similar API to support range counts. The proposed getAllChildren API is to return value/range counts sorted by label values instead of counts. 
> This proposal was inspired from the discussions with [~gsmiller] when I was working on the LUCENE-10538 [PR|https://github.com/apache/lucene/pull/843], and we believe users would benefit from adding this API to Facets. 
> Hope I can get some feedback from the community since this proposal would require changes to the getTopChildren API in RangeFacetCounts. Thanks!



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