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https://issues.apache.org/jira/browse/SOLR-12322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16466957#comment-16466957
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adeppa commented on SOLR-12322:
-------------------------------
[~mkhludnev] It's might possible with subquery, but if use
ChildDocTransformerFactory and fetch the child documents based on parent still
limiation in solr end can't specify the filed list of child,Here no relation
with termcount, This patch address only child document transformation
> Select specific field list for child documents using
> ChildDocTransformerFactory
> -------------------------------------------------------------------------------
>
> Key: SOLR-12322
> URL: https://issues.apache.org/jira/browse/SOLR-12322
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Response Writers, search
> Affects Versions: 6.6
> Reporter: adeppa
> Priority: Minor
> Fix For: 6.6
>
> Attachments: SOLR-12322.patch, doc_level_exaplantion.docx
>
>
> With the current version of SOLR and nested indexing, when you are fetch a
> parent record it returns all the fields of its children. This is increasing
> the size of data being returned from SOLR and also hits our performance
> sometime.
> This ticket will be used to update the ChildDocTransformerFactory class with
> additional parameters to specify the list of fields to be pulled for child
> documents.
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