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https://issues.apache.org/jira/browse/LUCENE-794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12570917#action_12570917
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Michael Goddard commented on LUCENE-794:
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I'm fairly certain that Mark H.'s comments are correct, but somehow I was
getting highlighting. ConstantScoreRangeQuery was the query I'd used
initially, but I had to later introduce a SpanRangeQuery which I could embed in
SpanNearQuery instances. And, yes, we have users who need this perverse
combination. They have a query syntax which is very expressive and enables
them to nest "proximity" (SpanNearQuery) queries to an arbitrary depth; they
can even embed numeric range queries within any of these sub-queries. The
requirement is mainly cultural, arising out of the long time use of a pure
boolean text engine. Still, over the past fifteen or so years, the user base
has developed a fairly large body of "literature" -- queries they use to find
certain things -- and they don't want to throw all of that away. I agree that
this type of thing is sort of specialized, but I thought there might just be a
few others out there with similar needs. The need to highlight all of this is
due to the fact that several tools are use to post-process search results and
visualize them.
I really appreciate the attention you guys have given to this. There's the
background from my end.
Thanks.
> Extend contrib Highlighter to properly support PhraseQuery, SpanQuery,
> ConstantScoreRangeQuery
> -----------------------------------------------------------------------------------------------
>
> Key: LUCENE-794
> URL: https://issues.apache.org/jira/browse/LUCENE-794
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Other
> Reporter: Mark Miller
> Priority: Minor
> Attachments: SpanHighlighter-01-26-2008.patch,
> SpanHighlighter-01-28-2008.patch, spanhighlighter.patch,
> spanhighlighter10.patch, spanhighlighter11.patch, spanhighlighter12.patch,
> spanhighlighter2.patch, spanhighlighter3.patch, spanhighlighter5.patch,
> spanhighlighter6.patch, spanhighlighter7.patch, spanhighlighter8.patch,
> spanhighlighter9.patch, spanhighlighter_24_January_2008.patch,
> spanhighlighter_patch_4.zip
>
>
> This patch adds a new Scorer class (SpanQueryScorer) to the Highlighter
> package that scores just like QueryScorer, but scores a 0 for Terms that did
> not cause the Query hit. This gives 'actual' hit highlighting for the range
> of SpanQuerys, PhraseQuery, and ConstantScoreRangeQuery. New Query types are
> easy to add. There is also a new Fragmenter that attempts to fragment without
> breaking up Spans.
> See http://issues.apache.org/jira/browse/LUCENE-403 for some background.
> There is a dependency on MemoryIndex.
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