[jira] [Created] (LUCENE-8367) Make per-dimension drill down optional for each facet dimension

["Michael McCandless (JIRA)" <ji...@apache.org>]

Michael McCandless created LUCENE-8367:
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             Summary: Make per-dimension drill down optional for each facet dimension
                 Key: LUCENE-8367
                 URL: https://issues.apache.org/jira/browse/LUCENE-8367
             Project: Lucene - Core
          Issue Type: Improvement
          Components: modules/facet
            Reporter: Michael McCandless
            Assignee: Michael McCandless


Today, when you index a {{FacetField}} with path {{foo/bar,}} we index two drill down terms onto the document: {{foo}} and {{foo/bar}}.

But I suspect some users (like me!) don't need to drilldown just on {{foo}} (effectively "find all documents that have any value for this facet dimension"), so I added an option to {{FacetsConfig}} to let you specify per-dimension whether you need to drill down (defaults to true, matching current behavior).

I also added {{hashCode}} and {{equals}} to the {{LongRange}} and {{DoubleRange}} classes in facets module, and improved {{CheckIndex}} a bit to print the total %deletions across the index.



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