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https://issues.apache.org/jira/browse/SOLR-6468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16363554#comment-16363554
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Nikhil Dhiman commented on SOLR-6468:
-------------------------------------
Hi [~aheaven]
I am also facing the exact problem, not able to get the expected results
because of the gap left by stop filter factory. I found you mentioned that it
worked for you after enabling enablePositionIncrements="false" and
luceneMatchVersion="4.3" on stop filter factory. I tried the same but getting
"Error instantiating class" error while creating the core. I am already on
Lucene version 6.1. Below are exact config changes for your reference. Please
suggest how to enable enablePositionIncrements feature for me. Thanks much in
advance!
{panel:title=Config Changes}
<fieldType class="solr.TextField" name="text_general"
positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter
class="solr.RemoveDuplicatesTokenFilterFactory"/>
<filter class="solr.StopFilterFactory"
ignoreCase="true" words="stopwords.txt" enablePositionIncrements="false"
luceneMatchVersion="4.3" /> <filter class="solr.TrimFilterFactory"/>
</analyzer>
<analyzer type="query">
<charFilter class="solr.HTMLStripCharFilterFactory"/>
<charFilter class="solr.MappingCharFilterFactory"
mapping="mapping-specialchars.txt"/>
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.StopFilterFactory"
ignoreCase="true" words="stopwords.txt" enablePositionIncrements="false"
luceneMatchVersion="4.3"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter
class="solr.RemoveDuplicatesTokenFilterFactory"/>
</analyzer>
<similarity class="solr.IBSimilarityFactory">
<str name="distribution">LL</str>
<str name="lambda">DF</str>
<str name="normalization">H2</str>
</similarity>
</fieldType>
{panel}
> Regression: StopFilterFactory doesn't work properly without deprecated
> enablePositionIncrements="false"
> -------------------------------------------------------------------------------------------------------
>
> Key: SOLR-6468
> URL: https://issues.apache.org/jira/browse/SOLR-6468
> Project: Solr
> Issue Type: Bug
> Components: Schema and Analysis
> Affects Versions: 4.8.1, 4.9, 5.3.1, 7.1, 6.6.2
> Reporter: Alexander S.
> Priority: Major
> Attachments: FieldValue.png
>
>
> Setup:
> * Schema version is 1.5
> * Field config:
> {code}
> <fieldType name="words_ngram" class="solr.TextField" omitNorms="false"
> autoGeneratePhraseQueries="true">
> <analyzer>
> <tokenizer class="solr.PatternTokenizerFactory" pattern="[^\w]+" />
> <filter class="solr.StopFilterFactory" words="url_stopwords.txt"
> ignoreCase="true" />
> <filter class="solr.LowerCaseFilterFactory" />
> </analyzer>
> </fieldType>
> {code}
> * Stop words:
> {code}
> http
> https
> ftp
> www
> {code}
> So very simple. In the index I have:
> * twitter.com/testuser
> All these queries do match:
> * twitter.com/testuser
> * com/testuser
> * testuser
> But none of these does:
> * https://twitter.com/testuser
> * https://www.twitter.com/testuser
> * www.twitter.com/testuser
> Debug output shows:
> "parsedquery_toString": "+(url_words_ngram:\"? twitter com testuser\")"
> But we need:
> "parsedquery_toString": "+(url_words_ngram:\"twitter com testuser\")"
> Complete debug outputs:
> * a valid search:
> http://pastie.org/pastes/9500661/text?key=rgqj5ivlgsbk1jxsudx9za
> * an invalid search:
> http://pastie.org/pastes/9500662/text?key=b4zlh2oaxtikd8jvo5xaww
> The complete discussion and explanation of the problem is here:
> http://lucene.472066.n3.nabble.com/Help-with-StopFilterFactory-td4153839.html
> I didn't find a clear explanation how can we upgrade Solr, there's no any
> replacement or a workarround to this, so this is not just a major change but
> a major disrespect to all existing Solr users who are using this feature.
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