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https://issues.apache.org/jira/browse/SOLR-6817?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ye Yan updated SOLR-6817:
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Attachment: solr_collation.patch
> Collation suggestions regard correctly spelt words as incorrect.
> ----------------------------------------------------------------
>
> Key: SOLR-6817
> URL: https://issues.apache.org/jira/browse/SOLR-6817
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.10.2
> Reporter: Ye Yan
> Priority: Minor
> Attachments: SpellCheckCollator.java, solr_collation.patch
>
>
> We've ran into an issue where if you have one word spelt correctly and one
> word spelt incorrectly, then the collation suggestions will only return
> alternatives for each word. This is not the case if both words are spelt
> incorrectly.
> I.e, if you do a search for "ipod toach", it will suggest alternatives for
> both "ipod" and "toach". The collation suggestions will not include "ipod
> touch" which would be the desired suggestion.
> If you do a search for "ipodd toach", the collation suggestions will include
> "ipod touch" as both words are incorrectly spelt.
> So you need to spell everything wrong, rather than some things wrong for the
> spell check collator to work correctly. In the real world, some people will
> spell only a few words wrong in a query, not everything wrong, so it is a bit
> of a usability issue.
> I've created a workaround for the collator to include the original term in
> the collation suggestions if itself is spelt correctly, rather than use
> suggestions of the correctly spelt word.
> This has a bit of a performance hit, as we need to query to make sure the
> word is spelt correctly, so I think there might be a more deeper way of
> changing it, but works as intended for now.
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