[jira] [Commented] (LUCENE-7931) SpanNotQuery has bug?

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[jira] [Commented] (LUCENE-7931) SpanNotQuery has bug?

JIRA jira@apache.org

    [ https://issues.apache.org/jira/browse/LUCENE-7931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16162600#comment-16162600 ]

Alan Woodward commented on LUCENE-7931:
---------------------------------------

"not" is a stopword, and is removed by the StandardAnalyzer by default.

> SpanNotQuery  has bug?
> ----------------------
>
>                 Key: LUCENE-7931
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7931
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: core/search
>    Affects Versions: 5.3.1
>            Reporter: jin jing
>
> i find when use SpanNotQuery and the exclud key word like  "not"  "or"  will give a error result
> example:
> doc1:the quick brown fox jumps over the lazy dog
> doc2:the quick red fox jumps over the sleepy cat
> doc3:the quick brown fox jumps over the lazy NOT dog
> String queryStringStart = "dog";  
> String queryStringEnd = "quick";  
> String excludeString = "NOT";  
> SpanQuery queryStart = new SpanTermQuery(new Term("text",queryStringStart));  
> SpanQuery queryEnd = new SpanTermQuery(new Term("text",queryStringEnd));  
> SpanQuery excludeQuery = new SpanTermQuery(new Term("text",excludeString));  
> SpanQuery spanNearQuery = new SpanNearQuery(  
>             new SpanQuery[] {queryStart,queryEnd}, 7, false, false);  
>          
>  SpanNotQuery spanNotQuery = new SpanNotQuery(spanNearQuery, excludeQuery, 4,3);
> then  this will return doc1 and doc3.  so i think it is a bug.



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