Julie Tibshirani created LUCENE-10039:
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Summary: With a single field, CombinedFieldQuery can score
incorrectly
Key: LUCENE-10039
URL: https://issues.apache.org/jira/browse/LUCENE-10039
Project: Lucene - Core
Issue Type: Bug
Reporter: Julie Tibshirani
When there's only one field, {{CombinedFieldQuery}} will ignore its weight
while scoring. This makes the scoring inconsistent, since the field weight is
supposed to multiply its term frequency.
This can also come up when searching over multiple fields, when some segment
happens to contain only one field. The problem was caught by this test:
{code}
ant test -Dtestcase=TestCombinedFieldQuery
-Dtests.method=testCopyFieldWithMissingFields -Dtests.seed=8FA982798BC8FEF6
-Dtests.nightly=true
{code}
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