1 files changed, 16 insertions, 0 deletions
diff --git a/lib/arel/engines/sql/extensions/array.rb b/lib/arel/engines/sql/extensions/array.rb
new file mode 100644
index 0000000000..7f15179721
--- /dev/null
+++ b/lib/arel/engines/sql/extensions/array.rb
@@ -0,0 +1,16 @@
+module Arel
+  module Sql
+    module ArrayExtensions
+      def to_sql(formatter = nil)
+        "(" + collect { |e| e.to_sql(formatter) }.join(', ') + ")"
+      end
+
+      def inclusion_predicate_sql
+        "IN"
+      end
+      
+      Array.send(:include, self)
+    end
+  end
+end
+