Greg Miller created LUCENE-10547:
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Summary: Implement "flattened" Facets#getTopChildren
Key: LUCENE-10547
URL: https://issues.apache.org/jira/browse/LUCENE-10547
Project: Lucene - Core
Issue Type: New Feature
Components: modules/facet
Reporter: Greg Miller
The currently implementation of {{Facets#getTopChildren}} only considers the
immediate children of the user-provided path. In many cases, this is probably
what the user is looking for, but it would be useful to also have an
implementation that considers any descendant of the path, regardless of
"level." This would allow the user to build a deeper set of facet path options
in "one shot," instead of having to iteratively call {{getTopChildren}}.
Of course the shallower paths, and specifically the immediate children of the
provided path, will always outweigh "deeper" paths due to counts/weights
accumulating along the ancestry paths, but by providing a topN value larger
than the number of immediate children, the user could build up a more complete
view of path options in a taxonomy with a lot of depth.
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