RE: Query with wildcard characters

[Digy]

If you have to use a tokenized field, then an alternative(but not good) 
solution may be: 

        string strQuery = "";
      TermEnum te = searcher.GetIndexReader().Terms(new Term("productName", 
"chat")); 
      do{
        Term t = te.Term();
            if (t.text.StartsWith("chat") == false) break;
            strQuery += "productName:\"sudhanya " + t.text + "\"~1 ";
      } while (te.Next());      

        QueryParser qp = new QueryParser("productName", new StandardAnalyzer());
      Query q = qp.Parse(strQuery);

DIGY

-----Original Message-----
From: Michael Garski [mailto:[EMAIL PROTECTED] 
Sent: Friday, May 30, 2008 9:15 PM
To: lucene-net-user@incubator.apache.org
Subject: RE: Query with wildcard characters

Sudhanya,

It sounds like you are tokenizing the text that you are searching for a 
wildcard.  If you want the multi-word items to be considered one term that can 
be searched with a wildcard, don't tokenize those fields.  From your 
description, it looks like the productName field is tokenized, which is why you 
are getting items that start with "Chat".

Michael

-----Original Message-----
From: Sudhanya Chatterjee [mailto:[EMAIL PROTECTED] 
Sent: Friday, May 30, 2008 1:28 AM
To: lucene-net-user@incubator.apache.org
Subject: Query with wildcard characters

Hi,

How to create queries of the following type using query parser (for
tokenized as well as untokenized fields) - 

 

Sudhanya Chat*

 

In the result I want all fields which start with "Sudhanya Chat".

But if I create a query - Query qry = queryParse.Parse("productName:
Sudhanya Chat*");

I get fields which are just starting with "Chat".

I have tried both - keyword and standard Analyzer.

How do I achieve the above mentioned kind of behaviour?

 

Thanks,

Sudhanya

 


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