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https://issues.apache.org/jira/browse/LUCENE-10680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julie Tibshirani resolved LUCENE-10680.
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Resolution: Duplicate
> UnifiedHighlighter's term extraction not working for some query rewrites
> ------------------------------------------------------------------------
>
> Key: LUCENE-10680
> URL: https://issues.apache.org/jira/browse/LUCENE-10680
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/highlighter
> Reporter: Yannick Welsch
> Priority: Minor
>
> UnifiedHighlighter rewrites the query against an empty index when extracting
> the terms from the query (see
> [https://github.com/apache/lucene/blob/d5d6dc079395c47cd6d12dcce3bcfdd2c7d9dc63/lucene/highlighter/src/java/org/apache/lucene/search/uhighlight/UnifiedHighlighter.java#L149).|https://github.com/apache/lucene/blob/d5d6dc079395c47cd6d12dcce3bcfdd2c7d9dc63/lucene/highlighter/src/java/org/apache/lucene/search/uhighlight/UnifiedHighlighter.java#L149)]
> The rewrite step can unfortunately drop the terms that are to be extracted.
> Take for example the boolean query "+field:value
> -ConstantScore(FieldExistsQuery [field=other_field])" when highlighting on
> "field".
> The `FieldExistsQuery` rewrites on an empty index to a `MatchAllDocsQuery`,
> and as a `MUST_NOT` clause rewrites the overall boolean query to a
> `MatchNoDocsQuery`, dropping the `MUST` clause in the process, which means
> that the `field:value` term is not being extracted.
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