[jira] Updated: (SOLR-81) Add Query Spellchecker functionality

["Adam Hiatt (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-81?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adam Hiatt updated SOLR-81:
---------------------------

    Attachment: SOLR-81-edgengram-ngram.patch

This new patch provides a superset of the functionality of Otis's orginal patch. Specifically it includes edge n-gram tokenizers based on Otis's lucene analyzer contrib. I modified this tokenizer to output edge n-grams in a range of sizes (ie you can tokenizer a range of 1-2 on the string "abc" resulting in "a", "ab").  This patch also fixes a bug in the n-gram factory and provides some code cleanup. 

For clarity's sake this patch suplants 'SOLR-81-ngram.patch' 

> 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.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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