[jira] [Updated] (SOLR-9868) RangeFacet : Use DocValues for accs and docSet collection instead of RangeQuery

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

     [ https://issues.apache.org/jira/browse/SOLR-9868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rustam Hashimov updated SOLR-9868:
----------------------------------
    Summary: RangeFacet : Use DocValues for accs and docSet collection instead of RangeQuery  (was: RangeFacet : Use DocValues to collect the count and find the docSet instead of RangeQuery)

> RangeFacet : Use DocValues for accs and docSet collection instead of RangeQuery
> -------------------------------------------------------------------------------
>
>                 Key: SOLR-9868
>                 URL: https://issues.apache.org/jira/browse/SOLR-9868
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: Facet Module
>    Affects Versions: master (7.0)
>            Reporter: Rustam Hashimov
>             Fix For: master (7.0)
>
>
> RangeFacet initiates a range query for each range bucket to get the docSet. DocSet later used for accs collection.
> For singleValued numeric fields, we can use docValues to find the matching slots for each doc to collect accumulators while iterating over base docSet. If there is a subFacet, docSet per range bucket can be collected from base docSet as well. 
> Gains :
> - One iteration over base docSet vs querying over baseDocSet for each range bucket
> - Memory saving If there is no subFacet, since per bucket docSet is not needed



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