Nattapong Sirilappanich created LUCENE-4176:
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Summary: Can not produce proper collation key for
ICUCollatedTermAttributeImp
Key: LUCENE-4176
URL: https://issues.apache.org/jira/browse/LUCENE-4176
Project: Lucene - Java
Issue Type: Bug
Components: modules/analysis
Affects Versions: 5.0
Reporter: Nattapong Sirilappanich
org.apache.lucene.collation.tokenattributes.ICUCollatedTermAttributeImpl return
a hash of collation key's byte.
The given hash value produce incorrect comparison result.
The source code below return 1 for Lucene 3.6.
The code here return 0.
Code to reproduce:
IndexWriter writer = new IndexWriter(ramDir, conf);
Document doc = new Document();
FieldType fieldType = new FieldType();
fieldType.setIndexed(true);
fieldType.setStored(true);
Field field = new Field("content","เข", fieldType);
doc.add(field);
writer.addDocument(doc);
writer.close();
IndexSearcher is = new IndexSearcher(DirectoryReader.open(ramDir));
QueryParser qp = new AnalyzingQueryParser(Version.LUCENE_50,"content",
analyzer);
ScoreDoc[] result = is.search(qp.parse("[\u0e01 TO \u0e03]"),
null,1000).scoreDocs;
System.out.println(result.length);
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