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From Erik Hatcher <e...@ehatchersolutions.com>
Subject Re: Possible bug in copyField
Date Mon, 28 Aug 2006 18:13:25 GMT

On Aug 28, 2006, at 1:41 PM, jason rutherglen wrote:
> Ok... Looks like its related to using SpanQueries (I hacked on the  
> XML query code).  I remember a discussion about this issue.  Not  
> something Solr specifically supports so my apologies.  However if  
> anyone knows about this feel free to post something to the Lucene  
> User list.  I will probably manually analyze the terms of the span  
> query and create a stemmed span query.  Is that a good idea?

Well, query terms need to match how they were indexed :)   So it's a  
good idea in that respect.  Stemming is chock full of fun (or  
frustrating) issues like this and I don't have any easy advice, but  
certainly if you're stemming terms during indexing you'll need to  
stem them for queries.   Unless you index the original terms in a  
parallel field or in the same positions as the stemmed ones, where  
you can play with searching with or without stemming on the query side.

	Erik



>
> ----- Original Message ----
> From: Yonik Seeley <yonik@apache.org>
> To: solr-user@lucene.apache.org
> Cc: jason rutherglen <jasonhusong@yahoo.com>
> Sent: Monday, August 28, 2006 7:33:48 AM
> Subject: Re: Possible bug in copyField
>
> On 8/28/06, Chris Hostetter <hossman_lucene@fucit.org> wrote:
>>
>> : By looking at what is stored.  Has this worked for others?
>>
>> the "stored" value of a field is allways going to be the pre- 
>> analyzed text
>> -- that's why the stored values in your "text" fields still have  
>> upper
>> case characters and stop words.
>
> And since the stored values will always be the same, it normally
> doesn't make sense to store the targets of copyField if the sources
> are also stored.
>
> Youy can test if stemming was done by searching for a different tense
> of a word in the field.
>
> -Yonik
>
>
>
>


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