Statistics from ValueSourceQuery
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Key: LUCENE-989
URL: https://issues.apache.org/jira/browse/LUCENE-989
Project: Lucene - Java
Issue Type: Improvement
Components: Search
Affects Versions: 2.2
Reporter: Will Johnson
Priority: Minor
Patch forthcoming that adds a DocValuesStats object that is optionally computer
for a ValueSourceQuery. This ~replaces the getMin/Max/Avg from the DocValues
which were previously unaccessible without reasonably heavy subclassing. in
addition it add a few more stats and provides a single object to encapsulate
all statistics going forward. The stats object is tied to the ValueSourceQuery
so that the values can be cached without having to maintain the full set of
DocValues. Test and javadocs included.
- will
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