mosh created SOLR-12441:
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Summary: 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)
Environment: 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}
Reporter: mosh
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