raise "Minimum longitude should be less than maximum." unless bbox[0] <= bbox[2]
raise "Minimum latitude should be less than maximum." unless bbox[1] <= bbox[3]
return ['min_lon < ? and max_lon > ? and min_lat < ? and max_lat > ?',
raise "Minimum longitude should be less than maximum." unless bbox[0] <= bbox[2]
raise "Minimum latitude should be less than maximum." unless bbox[1] <= bbox[3]
return ['min_lon < ? and max_lon > ? and min_lat < ? and max_lat > ?',