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From Erik Hatcher <e...@ehatchersolutions.com>
Subject Re: Case-sensitive search
Date Mon, 22 Aug 2005 15:20:21 GMT

On Aug 22, 2005, at 11:10 AM, Rajesh Munavalli wrote:
> You could also treat the case-sensitive and case-insensitive as  
> Synonyms
> and index them at the same position. This would be helpful in phrase
> queries.

You wouldn't be able to selectively toggle between case-sensitive and  
-insensitive searching this way, though, so I'm not sure if there is  
merit in doing both cases in the same position or not.

     Erik


>
> Rajesh Munavalli
>
>
>> -----Original Message-----
>> From: Erik Hatcher [mailto:erik@ehatchersolutions.com]
>> Sent: Monday, August 22, 2005 10:04 AM
>> To: java-user@lucene.apache.org
>> Subject: Re: Case-sensitive search
>>
>>
>> On Aug 22, 2005, at 10:40 AM, tareque@controldocs.com wrote:
>>
>>> Is there any way to index as case-sensitive and then, while
>>>
>> searching,
>>
>>> making the search case-sensitive and case-insensitive using
>>>
>> the same
>>
>>> index as needed?
>>>
>>
>> Not really.  Terms in the index are ordered
>> lexicographically, including case.  It certainly would be
>> possible to write customized Query subclasses to do this sort
>> of thing at the expense of performance.
>>
>> The only techniques I'm aware of are to either build separate
>> indexes or index the same information into separate fields of
>> the same documents using different analyzers per field.
>>
>>      Erik
>>
>>
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>
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