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https://issues.apache.org/jira/browse/SOLR-81?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12480660
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Hoss Man commented on SOLR-81:
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Otis: haven't had a chance to look at your newest patch yet, but just to
clarify my comment#4... In the last patch i looked at, LuceneDictionary could
be used to build the dictionary based on a field name from the index -- but
this will only work for simple String or TextFields.
Theoretically, someone could write a ROT132FieldType that munges up the field
values stored in it, if you were to try and build a SpellChecker index from
this field, nothing good would come of it just using LUceneDIctionary (because
of hte way it uses hte raw TermEnum) .. but since we have the IndexSchema, we
can get the FieldType for the field name we want to use, and then the
"indexedToReadable" method on each indexed term will tell you the "plain text"
version.
it's a minor thing, but it's a good thing to take into account.
Alternately, we can just document that it doesn't make sense to use any field
type except "StrField" (even TextField doens't really make sense since we can't
anticipate what hte Analyzer might have done)
> Add Query Spellchecker functionality
> ------------------------------------
>
> Key: SOLR-81
> URL: https://issues.apache.org/jira/browse/SOLR-81
> Project: Solr
> Issue Type: New Feature
> Components: search
> Reporter: Otis Gospodnetic
> Priority: Minor
> Attachments: SOLR-81-edgengram-ngram.patch,
> SOLR-81-ngram-schema.patch, SOLR-81-ngram.patch, SOLR-81-ngram.patch,
> SOLR-81-ngram.patch, SOLR-81-ngram.patch, SOLR-81-spellchecker.patch,
> SOLR-81-spellchecker.patch, SOLR-81-spellchecker.patch
>
>
> Use the simple approach of n-gramming outside of Solr and indexing n-gram
> documents. For example:
> <doc>
> <field name="word">lettuce</field>
> <field name="start3">let</field>
> <field name="gram3">let ett ttu tuc uce</field>
> <field name="end3">uce</field>
> <field name="start4">lett</field>
> <field name="gram4">lett ettu ttuc tuce</field>
> <field name="end4">tuce</field>
> </doc>
> See:
> http://www.mail-archive.com/solr-user@lucene.apache.org/msg01254.html
> Java clients: SOLR-20 (add delete commit optimize), SOLR-30 (search)
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