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From kanayo <richies4...@gmail.com>
Subject Re: Problem searching field with % as value
Date Thu, 10 Dec 2009 10:51:33 GMT

Hi,

Thanks Ian for your reply. What i did was to put a check in my indexing such
that when the stirng to index is just % it stores it un_analyzed else then
analyze and i then use the TermQuery to search for it and it is now working.

Thanks a lot for your tip.

Cheers.



Ian Lea wrote:
> 
> If you store the field unanalyzed it will be indexed as is.  You can
> then search for it via a TermQuery, or use QueryParser with
> PerFieldAnalyzerWrapper specifying KeywordAnalyzer for the field
> containing this character.
> 
> Another approach is to replace the % with something easier to work
> with.  You could do this yourself or, I think, with MappingCharFilter.
> 
> Personally I'd probably replace "%" with "percent" somewhere in my
> code with a simple string replacement.
> 
> 
> --
> Ian.
> 
> 
> 
> On Tue, Dec 8, 2009 at 5:02 PM, kanayo <richies4all@gmail.com> wrote:
>>
>> Thanks for your reply Erick.
>>
>> In Luke, its also not working. I tried to retrieving values from the
>> field
>> by specifying the field as the search field and then specify % as the
>> search
>> parameter which using StandardAnalyzer but nothing is displayed. Also
>> while
>> Luke shows the query details for other search values, it dosent show
>> query
>> details for search value of %.
>>
>> I think it is not Tokenized in the index. Is there anything else i can do
>> to
>> be able to retrieve values from fields comprising of just %?
>>
>> Thanks for your assistance.
>>
>>
>> Erick Erickson wrote:
>>>
>>> Try printing out query.toString() to see what's actually being
>>> sent to the searcher.
>>>
>>> You can try the same thing in Luke, specifying StandardAnalyzer
>>> to parse queries.
>>>
>>> Are you sure you're specifying the fields in the query and not just the
>>> '%'? That would go against your default field.
>>>
>>> When you say that you can see the fields in luke, are you storing the
>>> field?
>>> Because what you may be seeing is the *stored* value rather than the
>>> *tokens*.
>>> Make sure you're looking at the tokens in Luke..
>>>
>>> If none of that helps, could you post a code snippet or two (index and
>>> query)?
>>>
>>> Best
>>> Erick
>>>
>>> On Tue, Dec 8, 2009 at 11:04 AM, kanayo <richies4all@gmail.com> wrote:
>>>
>>>>
>>>> Hi,
>>>>
>>>> I am a newbie to lucene. I am using Standard Analyzer in my lucene
>>>> project.
>>>> I am indexing some fields which may contain only "%" as a field value
>>>> and
>>>> it
>>>> indexes fine and i can view the value against the field in the index
>>>> using
>>>> Luke.
>>>>
>>>> However when i try to retrieve the same field using indexsearcher and
>>>> passing "%" as a query parameter nothing is retrieved. It is simply
>>>> being
>>>> ignored. I have also tried to escape the "%" while searching but still
>>>> no
>>>> results.
>>>>
>>>> Is there anything am not doing right?
>>>>
>>>> Thanks in advance for your assistance.
>>>>
>>>>
>>>> --
>>>> View this message in context:
>>>> http://old.nabble.com/Problem-searching-field-with---as-value-tp26696184p26696184.html
>>>> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>>>>
>>>>
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>>>>
>>>>
>>>
>>>
>>
>> --
>> View this message in context:
>> http://old.nabble.com/Problem-searching-field-with---as-value-tp26696184p26696993.html
>> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>>
>>
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>>
>>
> 
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> 
> 
> 

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View this message in context: http://old.nabble.com/Problem-searching-field-with---as-value-tp26696184p26725335.html
Sent from the Lucene - Java Users mailing list archive at Nabble.com.


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