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The following page has been changed by ShalinMangar:
http://wiki.apache.org/solr/FilterQueryGuidance

The comment on the change is:
Fixing typo

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  == Analysis, Scoring and Faceting ==
  
- Each field type in Solr can define a index-time and query-time analyzer. When 
a query is specified through the 'q' parameter, it is parsed and the token is 
analyzed through the query-time analyzer for that field's type. For example, 
'string' type fields are not analyzer but 'text' type fields are analyzed. 
However, any query specified as a filter query through the 'fq' parameter is 
*not* analyzed regardless of the field's type. Therefore, filter queries are 
best suited for filtering on exact matches or range searches. If you need to 
filter but the search query needs to be analyzed, it should be specified 
through the 'q' parameter.
+ Each field type in Solr can define a index-time and query-time analyzer. When 
a query is specified through the 'q' parameter, it is parsed and the token is 
analyzed through the query-time analyzer for that field's type. For example, 
'string' type fields are not analyzed but 'text' type fields are analyzed. 
However, any query specified as a filter query through the 'fq' parameter is 
*not* analyzed regardless of the field's type. Therefore, filter queries are 
best suited for filtering on exact matches or range searches. If you need to 
filter but the search query needs to be analyzed, it should be specified 
through the 'q' parameter.
  
  Filter queries, as the name suggest, are used for filtering (or drilling 
down) the result set. Therefore, the results of a filter does not need to be 
ordered and hence it does not participate in the scoring. Queries specified in 
the 'q' parameter contribute to the scores.
  

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