Hi,
please help I am totally puzzled.
The same query, once with a direct call to FuzzyQuery
succeeds while the same query with QueryParser fails.
What am I missing?
Sorry, I'm using pylucene (with lucene-java-2.2.0-603782)
#!/usr/bin/python
import lucene
from lucene import *
lucene.initVM(lucene.CLASSPATH)
directory = RAMDirectory()
writer = IndexWriter(directory, WhitespaceAnalyzer(), True)
doc = Document()
doc.add(Field("field","Wolfgang Dahmen Arnold Reusken",
Field.Store.YES, Field.Index.TOKENIZED))
writer.addDocument(doc)
writer.optimize()
writer.close()
searcher = IndexSearcher(directory)
FQ= True
# FQ= False # this case doesn't find anything <+++++ WHY
if FQ :
# this succeeds in finding the entry above
query = FuzzyQuery(Term("field", "Damen"),0.79,0)
else :
# this fails to find that entry
parser= QueryParser("field",WhitespaceAnalyzer())
query= parser.parse("Damen~0.79")
hits = searcher.search(query)
print "there are",hits.length(),"hits"
for k in range(0,hits.length()) :
print hits.doc(k).get("field")
--
Helmut Jarausch
Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany
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