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https://issues.apache.org/jira/browse/SOLR-12440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16499439#comment-16499439
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Cassandra Targett commented on SOLR-12440:
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Is this a (possibly accidental) duplicate of SOLR-12441?
> Add deeply nested documents URP
> -------------------------------
>
> Key: SOLR-12440
> URL: https://issues.apache.org/jira/browse/SOLR-12440
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Environment: As stated in SOLR-12298, there ought to be an URP to add
> metadata fields to solr child documents, so the full original document
> hierarchy can be rebuilt using a transformer.
> {quote}1. __nestParent__
> 2. __nestLevel__
> 3. __nestPath__
> __nestParent__: This field wild will store the document's parent docId, to be
> used for building the whole hierarchy, using a new document transformer, as
> suggested by Jan on the mailing list.
> __nestLevel__: This field will store the level of the specified field in the
> document, using an int value. This field can be used for the parentFilter,
> eliminating the need to provide a parentFilter, which will be set by default
> as "_level_:queriedFieldLevel".
> __nestPath__: This field will contain the full path, separated by a specific
> reserved char e.g., '.'
> for example: "first.second.third".
> This will enable users to search for a specific path, or provide a regular
> expression to search for fields sharing the same name in different levels of
> the document, filtering using the level key if needed.
> {quote}
> Reporter: mosh
> Priority: Major
>
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