# File lib/arel/expressions.rb, line 19 def average Nodes::Avg.new [self], Nodes::SqlLiteral.new('avg_id') end
# File lib/arel/expressions.rb, line 3 def count distinct = false Nodes::Count.new [self], distinct end
# File lib/arel/expressions.rb, line 11 def maximum Nodes::Max.new [self], Nodes::SqlLiteral.new('max_id') end
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