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https://issues.apache.org/jira/browse/SOLR-5152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13742051#comment-13742051
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Christoph Lingg commented on SOLR-5152:
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how about a properties as in _WhitespaceTokenizerFactory_: preserveOriginal="1"
> EdgeNGramFilterFactory deletes token
> ------------------------------------
>
> Key: SOLR-5152
> URL: https://issues.apache.org/jira/browse/SOLR-5152
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 4.4
> Reporter: Christoph Lingg
>
> I am using EdgeNGramFilterFactory in my schema.xml
> {code:xml}<fieldType name="text" class="solr.TextField"
> positionIncrementGap="100">
> <analyzer type="index">
> <!-- ... -->
> <filter class="solr.EdgeNGramFilterFactory" minGramSize="2"
> maxGramSize="10" side="front" />
> </analyzer>
> </fieldType>{code}
> Some tokens in my index only consist of one character, let's say {{R}}.
> minGramSize is set to 2 and is bigger than the length of the token. I
> expected the NGramFilter to left {{R}} unchanged but in fact it is deleting
> the token.
> For my use case this interpretation is undesirable, and probably for most use
> cases too!?
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