[jira] [Resolved] (LUCENE-10488) Optimize Facets#getTopDims across Facets implementations

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

     [ https://issues.apache.org/jira/browse/LUCENE-10488?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Greg Miller resolved LUCENE-10488.
----------------------------------
    Fix Version/s: 9.2
       Resolution: Fixed

Merged to {{main}} and {{branch_9x}}. Resolving. Thanks again [~yutinggan]!

> Optimize Facets#getTopDims across Facets implementations
> --------------------------------------------------------
>
>                 Key: LUCENE-10488
>                 URL: https://issues.apache.org/jira/browse/LUCENE-10488
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/facet
>            Reporter: Greg Miller
>            Priority: Minor
>             Fix For: 9.2
>
>          Time Spent: 4h 10m
>  Remaining Estimate: 0h
>
> LUCENE-10325 added a new {{getTopDims}} API, allowing users to specify the number of "top" dimensions they want. The default implementation just delegates to {{getAllDims}} and returns the number of top dims requested, but some Facets sub-classes can do this more optimally. LUCENE-10325 demonstrated this in {{SortedSetDocValueFacetCounts}}, but we can take it further. There's at least some opportunity to do better in:
> * {{ConcurrentSortedSetDocValuesFacetCounts}}
> * {{FastTaxonomyFacetCounts}}
> * {{TaxonomyFacetSumFloatAssociations}}
> * {{TaxonomyFacetSumIntAssociations}}



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