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https://issues.apache.org/jira/browse/SOLR-12284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Dyer closed SOLR-12284.
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> WordBreakSolrSpellChecker incorrectly adds parenthesis when breaking words
> --------------------------------------------------------------------------
>
> Key: SOLR-12284
> URL: https://issues.apache.org/jira/browse/SOLR-12284
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: spellchecker
> Affects Versions: 7.3
> Reporter: James Dyer
> Assignee: James Dyer
> Priority: Minor
> Fix For: 7.4
>
> Attachments: SOLR-12284.patch
>
>
> When using WordBreakSolrSpellChecker to break single words into multiple, the
> collation queries include parenthesis around the original term. In some
> cases, this causes required terms to become optional and users get spurious
> nonsensical collation results.
> For instance, if I search: +eward +smith
> ...If +ward +smith is a match, it might give a collation like: (+e +ward)
> +smith
> ...This requires either the "e" or the "ward" to exist, but not both. But
> users are more likely to want both terms to be required, so it would be
> better if it was not adding parenthesis.
> This might be the cause of SOLR-5995 and [this SO
> issue|https://stackoverflow.com/questions/23849747/solr-wordbreak-spellchecker-breaking-words-into-letters-excessive-breaking]
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