Arel::Expressions

     # File lib/arel/algebra/attributes/attribute.rb, line 246
246:       def average
247:         Average.new(self)
248:       end

     # File lib/arel/algebra/attributes/attribute.rb, line 230
230:       def count(distinct = false)
231:         distinct ?  Distinct.new(self).count :  Count.new(self)
232:       end

     # File lib/arel/algebra/attributes/attribute.rb, line 238
238:       def maximum
239:         Maximum.new(self)
240:       end

     # File lib/arel/algebra/attributes/attribute.rb, line 242
242:       def minimum
243:         Minimum.new(self)
244:       end

     # File lib/arel/algebra/attributes/attribute.rb, line 234
234:       def sum
235:         Sum.new(self)
236:       end