1 files changed, 4 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index 9802bac87b..563f98dc5e 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -49,6 +49,10 @@ module ActiveRecord
             super
           end
         end
+
+        def cast_hstore(string)
+          Hash[[string.split('=>').map { |k| k[1...-1] }]]
+        end
       end
       # :startdoc: