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https://issues.apache.org/jira/browse/LUCENE-7931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16162421#comment-16162421
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jin jing commented on LUCENE-7931:
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public static void main(String[] args) throws IOException {
Directory dir = new RAMDirectory();
Analyzer analyzer = new StandardAnalyzer();
IndexWriterConfig iwc = new IndexWriterConfig(analyzer);
iwc.setOpenMode(OpenMode.CREATE);
IndexWriter writer = new IndexWriter(dir, iwc);
Document doc = new Document();
doc.add(new TextField("text", "the quick brown fox jumps over the lazy
dog", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new TextField("text", "the quick red fox jumps over the sleepy
cat", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new TextField("text", "the quick brown fox jumps over the lazy
not dog", Field.Store.YES));
writer.addDocument(doc);
writer.close();
IndexReader reader = DirectoryReader.open(dir);
IndexSearcher searcher = new IndexSearcher(reader);
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}, 9, false, false);
SpanNotQuery spanNotQuery = new SpanNotQuery(spanNearQuery,
excludeQuery, 4,3);
TopDocs results = searcher.search(spanNotQuery, null, 100);
ScoreDoc[] scoreDocs = results.scoreDocs;
for (int i = 0; i < scoreDocs.length; ++i) {
int docID = scoreDocs[i].doc;
Document document = searcher.doc(docID);
String path = document.get("text");
System.out.println("text:" + path);
}
}
> 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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