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-rw-r--r--lib/arel/nodes/function.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/arel/nodes/function.rb b/lib/arel/nodes/function.rb
index 90c6ba23a2..a1cd13d4d1 100644
--- a/lib/arel/nodes/function.rb
+++ b/lib/arel/nodes/function.rb
@@ -1,6 +1,7 @@
module Arel
module Nodes
class Function
+ include Arel::Expression
attr_accessor :expressions, :alias
def initialize expr, aliaz = nil