[jira] [Created] (SOLR-12901) Make UnifiedHighlighter the default in 8.0

["David Smiley (JIRA)" <ji...@apache.org>]

David Smiley created SOLR-12901:
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             Summary: Make UnifiedHighlighter the default in 8.0
                 Key: SOLR-12901
                 URL: https://issues.apache.org/jira/browse/SOLR-12901
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: David Smiley
             Fix For: master (8.0)


I think the UnifiedHighlighter should be the default in 8.0.  It's faster and more accurate than alternatives.

The original highlighter however has some benefits:
* Different passage/snippet delineation options; somewhat more flexible.  Though no i18n BreakIterator based one.
* Seems to handle some "special" Queries and/or QueryParsers by default better -- namely SurroundQParser.  Though SOLR-12895 will address this UH issue.
* Considers boosts in the query when computing a passage score
* hl.alternateField, hl.maxAlternateFieldLength, hl.highlightAlternate options.  Instead the UH has hl.defaultSummary boolean

See https://builds.apache.org/job/Solr-reference-guide-master/javadoc/highlighting.html




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