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https://issues.apache.org/jira/browse/LUCENE-7960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16501163#comment-16501163
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ASF subversion and git services commented on LUCENE-7960:
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Commit 98bf43b3da5131f0d27c747ac8bfbe28945cc922 in lucene-solr's branch
refs/heads/branch_7x from [~rcmuir]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=98bf43b ]
LUCENE-7960: Add preserveOriginal option to the NGram and EdgeNGram filters
(this is a correction of the issue number in both the CHANGES.txt and the
commit message, sorry for the noise).
> 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
> 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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