ActiveRecordPostgresqlExplain ======================= an ActiveRecord extention for accessing Postgresql's explain data - useful for estimating the cost of queries in Postgresql. Example ======= >> User.estimate(:cost, :conditions => "login ILIKE '%doug%'") => 85.78 >> User.estimate(:count, :conditions => "login ILIKE '%doug%'") => 15 Note these are only estimates, take them as an order of magnitude estimate instead of faster count: >> User.count(:conditions => "login ILIKE '%doug%'") => 8 # vs the estimate of 15 Copyright (c) 2008 Estately.com, released under the MIT license