[jira] [Resolved] (LUCENE-7960) NGram filters -- preserve the original token when it is outside the min/max size range

["Robert Muir (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-7960?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir resolved LUCENE-7960.
---------------------------------
       Resolution: Fixed
    Fix Version/s: master (8.0)
                   7.4

Thank you [~iwesp] !

> NGram filters -- preserve the original token when it is outside the min/max size range
> --------------------------------------------------------------------------------------
>
>                 Key: LUCENE-7960
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7960
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/analysis
>            Reporter: Shawn Heisey
>            Assignee: Robert Muir
>            Priority: Major
>             Fix For: 7.4, master (8.0)
>
>         Attachments: LUCENE-7960.patch, LUCENE-7960.patch, LUCENE-7960.patch, LUCENE-7960.patch
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> When ngram or edgengram filters are used, any terms that are shorter than the minGramSize are completely removed from the token stream.
> This is probably 100% what was intended, but I've seen it cause a lot of problems for users.  I am not suggesting that the default behavior be changed.  That would be far too disruptive to the existing user base.
> I do think there should be a new boolean option, with a name like keepShortTerms, that defaults to false, to allow the short terms to be preserved.



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