Robert Muir created LUCENE-7240:
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Summary: Remove DocValues from LatLonPoint, add DocValuesField for
that
Key: LUCENE-7240
URL: https://issues.apache.org/jira/browse/LUCENE-7240
Project: Lucene - Core
Issue Type: Improvement
Reporter: Robert Muir
LatLonPoint needed two-phase intersection initially because of big
inefficiencies, but as of LUCENE-7239 all of its query operations:
{{newBoxQuery()}}, {{newDistanceQuery()}}, {{newPolygonQuery()}} and
{{nearest()}} only need the points datastructure (BKD).
If you want to do {{newDistanceSort()}} then you need docvalues for that, but I
think it should be moved to a separate field: e.g. docvalues is optional just
like any other field in lucene. We can add other methods that make sense to
that new docvalues field (e.g. facet by distance/region, expressions support,
whatever). It is really disjoint from the core query support: and also
currently has a heavyish cost of ~64-bits per value in space.
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