Shai Erera created LUCENE-5297:
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Summary: Allow rang faceting on any ValueSource
Key: LUCENE-5297
URL: https://issues.apache.org/jira/browse/LUCENE-5297
Project: Lucene - Core
Issue Type: New Feature
Components: modules/facet
Reporter: Shai Erera
Today RangeAccumulator assumes the ranges should be read from a
NumericDocValues field. Would be good if we can modify it, or introduce a new
ValueSourceAccumulator which allows you to range-facet on any ValueSource, e.g.
one that is generated from an expression.
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