Here you can find params and their meanings for the dismax-handler.
You may not find anything in the wiki by searching for a parser ;).

Link:  http://wiki.apache.org/solr/DisMaxRequestHandler Wiki:
DisMaxRequestHandler 

Kind regards
- Mitch



Erik Hatcher-4 wrote:
> 
> Consider using the dismax query parser instead.  It has more  
> sophisticated capability to spread user queries across multiple fields  
> with different weightings.
> 
>       Erik
> 
> On Jul 20, 2010, at 4:34 AM, Bilgin Ibryam wrote:
> 
>> Hi all,
>>
>> I have two simple questions:
>>
>> I have an Item entity with id, name, category and description  
>> fields. The
>> main requirements is to be able to search in all the fields with the  
>> same
>> string and different priority per field, so matches in name appear  
>> before
>> category matches, and they appear before description field matches  
>> in the
>> result list.
>>
>> 1. I think to create an index having the same fields, because each  
>> field
>> needs different priority during searching.
>>
>> 2. And then do the search with a query like this:
>> name:search_string^1.3 OR categpry:search_string^1.2 OR
>> description:search_string^1.1
>>
>> Is this the right approach to model the index and search query?
>>
>> Thanks in advance.
>> Bilgin
> 
> 
> 
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