1 files changed, 23 insertions, 0 deletions
diff --git a/activerecord/lib/arel/nodes/named_function.rb b/activerecord/lib/arel/nodes/named_function.rb
new file mode 100644
index 0000000000..126462d6d6
--- /dev/null
+++ b/activerecord/lib/arel/nodes/named_function.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module Arel # :nodoc: all
+  module Nodes
+    class NamedFunction < Arel::Nodes::Function
+      attr_accessor :name
+
+      def initialize(name, expr, aliaz = nil)
+        super(expr, aliaz)
+        @name = name
+      end
+
+      def hash
+        super ^ @name.hash
+      end
+
+      def eql?(other)
+        super && self.name == other.name
+      end
+      alias :== :eql?
+    end
+  end
+end