Robert Muir created SOLR-5512:
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Summary: Optimize DocValuesFacets
Key: SOLR-5512
URL: https://issues.apache.org/jira/browse/SOLR-5512
Project: Solr
Issue Type: Improvement
Reporter: Robert Muir
This works well in the general case (esp with huge numbers of unique values),
but the SortedSetDocValuesAccumulator in lucene/facets does the algorithm
better for typical cases (smaller number of unique values wrt the size of the
document set).
In this case, it collects directly with per-segment local ords, then remaps as
a second step. So this is a lot less remapping.
Its too bad the code is separate at the moment, for now lets steal the
heuristic.
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