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https://issues.apache.org/jira/browse/LUCENE-8202?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Woodward resolved LUCENE-8202.
-----------------------------------
Resolution: Fixed
> Add a FixedShingleFilter
> ------------------------
>
> Key: LUCENE-8202
> URL: https://issues.apache.org/jira/browse/LUCENE-8202
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Major
> Fix For: 7.4
>
> Attachments: LUCENE-8202-fixes.patch, LUCENE-8202.patch,
> LUCENE-8202.patch, LUCENE-8202.patch
>
>
> In LUCENE-3475 I tried to make a ShingleGraphFilter that could accept and
> emit arbitrary graphs, while duplicating all the functionality of the
> existing ShingleFilter. This ends up being extremely hairy, and doesn't play
> well with query parsers.
> I'd like to step back and try and create a simpler shingle filter that can be
> used for index-time phrase tokenization only. It will have a single fixed
> shingle size, can deal with single-token synonyms, and won't emit unigrams.
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