Alan Woodward created LUCENE-8017:
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Summary: FunctionRangeQuery and FunctionMatchQuery can pollute the
QueryCache
Key: LUCENE-8017
URL: https://issues.apache.org/jira/browse/LUCENE-8017
Project: Lucene - Core
Issue Type: Bug
Reporter: Alan Woodward
Assignee: Alan Woodward
The QueryCache assumes that queries will return the same set of documents when
run over the same segment, independent of all other segments held by the parent
IndexSearcher. However, both FunctionRangeQuery and FunctionMatchQuery can
select hits based on score, which depend on term statistics over the whole
index, and could therefore theoretically return different result sets on a
given segment.
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