queries with doesn't work but AND does

2013-10-10 Thread Devi pulaparti 
In our search application, queries like  test  usage  do not return
correct results but  test AND usage works fine.  So queries with 
doesn't work but AND does. We are using default queryparser with standard
analyzer. Could some one please help me resolving this. please let me know
if you need more details of implementation.

Re: queries with doesn't work but AND does

2013-10-10 Thread Alan Burlison 

On 10/10/2013 09:27, Devi pulaparti wrote:


In our search application, queries like  test  usage  do not return
correct results but  test AND usage works fine.  So queries with 
doesn't work but AND does. We are using default queryparser with standard
analyzer. Could some one please help me resolving this. please let me know
if you need more details of implementation.


Most likely cause is that the analyzer is discarding non-alphanumeric 
tokens. Use toString on the query returned by queryparser.parse() to see 
what's in there.


--
Alan Burlison
--

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Re: queries with doesn't work but AND does

2013-10-10 Thread Devi pulaparti 
toString output by queryparser.parse()  for query   TEST  USAGE  is 
content:TEST content:\amp amp\ content:USAGE   .
and for query  TEST AND USAGE is +content:TEST +content:USAGE
any idea why is analyzer treating  as content?




On Thu, Oct 10, 2013 at 2:50 PM, Alan Burlison alan.burli...@gmail.comwrote:

 On 10/10/2013 09:27, Devi pulaparti wrote:

  In our search application, queries like  test  usage  do not return
 correct results but  test AND usage works fine.  So queries with 
 doesn't work but AND does. We are using default queryparser with
 standard
 analyzer. Could some one please help me resolving this. please let me know
 if you need more details of implementation.


 Most likely cause is that the analyzer is discarding non-alphanumeric
 tokens. Use toString on the query returned by queryparser.parse() to see
 what's in there.

 --
 Alan Burlison
 --

Re: queries with doesn't work but AND does

2013-10-10 Thread Ian Lea 
Looks like you've got some XML processing in there somewhere.  Nothing
to do with lucene.  This code:

public static void main(String[] _args) throws Exception {
QueryParser qp = new QueryParser(Version.LUCENE_44,
x,
new StandardAnalyzer(Version.LUCENE_44));
for (String s : _args) {
   System.out.printf(%s: %s\n, s, qp.parse(s));
}
}

produces this output:

hello  goodbye: +x:hello +x:goodbye
hello AND goodbye: +x:hello +x:goodbye


--
Ian.


On Thu, Oct 10, 2013 at 11:32 AM, Devi pulaparti pvkd...@gmail.com wrote:
 toString output by queryparser.parse()  for query   TEST  USAGE  is 
 content:TEST content:\amp amp\ content:USAGE   .
 and for query  TEST AND USAGE is +content:TEST +content:USAGE
 any idea why is analyzer treating  as content?




 On Thu, Oct 10, 2013 at 2:50 PM, Alan Burlison alan.burli...@gmail.comwrote:

 On 10/10/2013 09:27, Devi pulaparti wrote:

  In our search application, queries like  test  usage  do not return
 correct results but  test AND usage works fine.  So queries with 
 doesn't work but AND does. We are using default queryparser with
 standard
 analyzer. Could some one please help me resolving this. please let me know
 if you need more details of implementation.


 Most likely cause is that the analyzer is discarding non-alphanumeric
 tokens. Use toString on the query returned by queryparser.parse() to see
 what's in there.

 --
 Alan Burlison
 --


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Re: queries with doesn't work but AND does

2013-10-10 Thread Nicola Buso 
On Thu, 2013-10-10 at 16:02 +0530, Devi pulaparti wrote:
 toString output by queryparser.parse()  for query   TEST  USAGE  is 
 content:TEST content:\amp amp\ content:USAGE   .
 and for query  TEST AND USAGE is +content:TEST +content:USAGE
 any idea why is analyzer treating  as content?
seam something is encoding  before giving it to the parser.

Nicola.
 
 
 
 
 On Thu, Oct 10, 2013 at 2:50 PM, Alan Burlison alan.burli...@gmail.comwrote:
 
  On 10/10/2013 09:27, Devi pulaparti wrote:
 
   In our search application, queries like  test  usage  do not return
  correct results but  test AND usage works fine.  So queries with 
  doesn't work but AND does. We are using default queryparser with
  standard
  analyzer. Could some one please help me resolving this. please let me know
  if you need more details of implementation.
 
 
  Most likely cause is that the analyzer is discarding non-alphanumeric
  tokens. Use toString on the query returned by queryparser.parse() to see
  what's in there.
 
  --
  Alan Burlison
  --
 



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