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Posted to dev@lucene.apache.org by "Ingomar Wesp (JIRA)" <ji...@apache.org> on 2018/06/04 19:18:00 UTC
[jira] [Commented] (LUCENE-7960) NGram filters -- preserve the
original token when it is outside the min/max size range
[ https://issues.apache.org/jira/browse/LUCENE-7960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16500742#comment-16500742 ]
Ingomar Wesp commented on LUCENE-7960:
--------------------------------------
So ... anyone willing to merge this into master?
> 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
> 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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