1 files changed, 15 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
index b8e7687b21..52344f61c0 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
@@ -63,6 +63,21 @@ module ActiveRecord
           end
         end
 
+        class Array < Type
+          attr_reader :subtype
+          def initialize(subtype)
+            @subtype = subtype
+          end
+
+          def type_cast(value)
+            if String === value
+              ConnectionAdapters::PostgreSQLColumn.string_to_array value, @subtype
+            else
+              value
+            end
+          end
+        end
+
         class Integer < Type
           def type_cast(value)
             return if value.nil?