random_page_cost = <%= @settings[:random_page_cost] || @defaults[:random_page_cost] %>
cpu_tuple_cost = <%= @settings[:cpu_tuple_cost] || @defaults[:cpu_tuple_cost] %>
effective_cache_size = <%= @settings[:effective_cache_size] || @defaults[:effective_cache_size] %>
random_page_cost = <%= @settings[:random_page_cost] || @defaults[:random_page_cost] %>
cpu_tuple_cost = <%= @settings[:cpu_tuple_cost] || @defaults[:cpu_tuple_cost] %>
effective_cache_size = <%= @settings[:effective_cache_size] || @defaults[:effective_cache_size] %>