yesno

The yesno operator converts all nonzero score values to 100. For example, if the score values for five documents are 86, 45, 89, 89, and 100, each of those documents is returned with a score value of 100. score values of 0 are not changed. The yesno operator is helpful for ensuring that all documents containing the search criteria are returned in the result set, regardless of the sort order.