title: Is {Filter}ing faster than {Query}ing in Lucene?
body: <p>While reading "Lucene in Action 2nd edition" I came across the description of <code>Filter</code> classes which are could be used for result filtering in Lucene. Lucene has a lot of filters repeating <code>Query</code> classes. For example, <code>NumericRangeQuery</code> and <code>NumericRangeFilter</code>.</p>
  
  <p>The book says that <code>NRF</code> does exactly the same as <code>NRQ</code> but without document scoring. Does this means that if I <em>do not need scoring</em> or sort documents by <em>document field value</em> I should prefer <code>Filter</code>ing over <code>Query</code>ing from performance point of view?</p>