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https://issues.apache.org/jira/browse/LUCENE-1229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Erick Erickson resolved LUCENE-1229.
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Resolution: Won't Fix
SPRING_CLEANING_2013 We can reopen if necessary.
> NGramTokenFilter optimization in query phase
> --------------------------------------------
>
> Key: LUCENE-1229
> URL: https://issues.apache.org/jira/browse/LUCENE-1229
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/analysis
> Reporter: Hiroaki Kawai
> Assignee: Otis Gospodnetic
> Attachments: NGramTokenFilter.patch
>
>
> I found that NGramTokenFilter-ed token stream could be optimized in query.
> A standard 1,2 NGramTokenFilter will generate a token stream from "abcde" as
> follows:
> a ab b bc c cd d de e
> When we index "abcde", we'll use all of the tokens.
> But when we query, we only need:
> ab cd de
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