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https://issues.apache.org/jira/browse/CONNECTORS-1045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14173827#comment-14173827
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Swami Rajamohan commented on CONNECTORS-1045:
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Sorry for the delayed response. I didn't notice the response.
Our use case is that we have documents that are stored in the repository in a
folder content hierarchy. However we do have another relationship among items
wherein a content item(s) can belong to a folder and be contained within a
parent document as well. The Solr Nested document provides us a way to query
that relationship as a block join. The use case for this parent child
relationship comes in the case where we build Topic web pages(parent) that have
content items as children. The children items themselves would not make sense
on its own but only in context within a parent. Everytime there is a change in
the association with regards to the parent, all of the associated children and
newly associated children & disassociated children will get updated as a single
unit.
At query time the BlockJoinQuery parser of Solr will allow me to perform join
operations
https://cwiki.apache.org/confluence/display/solr/Other+Parsers#OtherParsers-BlockJoinQueryParsers
Hope this helps in clarifying the use case.
> Support for Solr Nested/Child documents
> ---------------------------------------
>
> Key: CONNECTORS-1045
> URL: https://issues.apache.org/jira/browse/CONNECTORS-1045
> Project: ManifoldCF
> Issue Type: Improvement
> Components: Lucene/SOLR connector
> Affects Versions: ManifoldCF 1.2
> Environment: Windows
> Reporter: Swami Rajamohan
> Assignee: Karl Wright
> Labels: ChildDocuments, NestedDocuments, Solr, SolrCloud
> Fix For: ManifoldCF 1.2, ManifoldCF 2.0
>
>
> It would be nice to have support for Solr's Nested/Child document submission
> feature, which allows documents to be indexed as children of a parent
> document.
> https://cwiki.apache.org/confluence/display/solr/Uploading+Data+with+Index+Handlers#UploadingDatawithIndexHandlers-NestedChildDocuments
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