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https://issues.apache.org/jira/browse/SOLR-12441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16536110#comment-16536110
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David Smiley commented on SOLR-12441:
-------------------------------------
Few comments:
* The childFilter {{from/name:Peyton*}} is not a valid query syntax due to the
slash. Right?
* {{_NEST_PATH_:from#*#}} wildcards in the middle of a string can be
problematic as it may match across 'from' to some other child label. Wether
that's an issue here or not I'm not sure yet.
* Note that \_NEST_PATH\_ need not be a string. It's quite plausible it's
indexed form ought to be stripped of the sibling IDs with
PatternReplaceCharFilterFactory and then processed with
PathHierarchyTokenizerFactory. This would allow for more efficient term
queries instead of prefix/wildcard queries.
> Add deeply nested documents URP
> -------------------------------
>
> Key: SOLR-12441
> URL: https://issues.apache.org/jira/browse/SOLR-12441
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: mosh
> Assignee: David Smiley
> Priority: Major
> Time Spent: 6h 10m
> Remaining Estimate: 0h
>
> As discussed in
> [SOLR-12298|https://issues.apache.org/jira/browse/SOLR-12298], there ought to
> be an URP to add metadata fields to childDocuments in order to allow a
> transformer to rebuild the original document hierarchy.
> {quote}I propose we add the following fields:
> # __nestParent__
> # _nestLevel_
> # __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".
> _nestLevel_: 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}
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