David Smiley created LUCENE-8040:
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Summary: Optimize IndexSearcher.collectionStatistics
Key: LUCENE-8040
URL: https://issues.apache.org/jira/browse/LUCENE-8040
Project: Lucene - Core
Issue Type: Improvement
Components: core/search
Reporter: David Smiley
Assignee: David Smiley
Fix For: 7.2
{{IndexSearcher.collectionStatistics(field)}} can do a fair amount of work
because with each invocation it will call {{MultiFields.getTerms(...)}}. The
effects of this are aggravated for queries with many fields since each field
will want statistics, and also aggravated when there are many segments.
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