The numfields (number of fields) module ranks results based on the number of fields in the associated search interface in which a match occurs.

Note that the whole-field is counted rather than cross-field matches. Therefore, a result that matches two fields matches each field completely, while a cross-field match typically does not match any field completely.

numfields treats all matches the same, whether or not they are due to query expansion. The numfields module is only useful in conjunction with record search operations.