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[jira] [Updated] (SOLR-10521) sort by string field of the nested child when searching with {!parent}

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[jira] [Updated] (SOLR-10521) sort by string field of the nested child when searching with {!parent}

JIRA jira@apache.org

     [ https://issues.apache.org/jira/browse/SOLR-10521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mikhail Khludnev updated SOLR-10521:
------------------------------------
    Attachment: SOLR-10500.patch

Made a cool test. Caching and equality aren't addressed yet.
Is there are any thoughts about the syntax?

> sort by string field of the nested child when searching with {!parent}
> ----------------------------------------------------------------------
>
>                 Key: SOLR-10521
>                 URL: https://issues.apache.org/jira/browse/SOLR-10521
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public)
>            Reporter: Mikhail Khludnev
>         Attachments: SOLR-10500.patch, SOLR-10521-raw.patch
>
>
> The idea is to integrate Lucene's {{ToParentBlockJoinSortField}}
> The approach to hookup it is a little bit tricky:
> {{sort=\{!childfield bjq=$q field=COLOR_s}desc}}
> the question no.1 wdyt about the syntax?
> internally it creates a function query with valueSource which produces {{ToParentBlockJoinSortField}}
> The main challenge is picking Solr field type from  {{ToParentBlockJoinSortField}}, because as-is it's broken on {{mergeIds}} - ByteRefs need to be properly marshared and unmarshalled by a field type from child scope.



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