# File lib/arel/expressions.rb, line 19 def average Nodes::Avg.new [self] end
# File lib/arel/expressions.rb, line 3 def count distinct = false Nodes::Count.new [self], distinct end
# File lib/arel/expressions.rb, line 23 def extract field Nodes::Extract.new [self], field end
# File lib/arel/expressions.rb, line 11 def maximum Nodes::Max.new [self] end
# File lib/arel/expressions.rb, line 15 def minimum Nodes::Min.new [self] end
# File lib/arel/expressions.rb, line 7 def sum Nodes::Sum.new [self] end