diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index 6f4dca1b7bf1d85b29ec7ae04e289e49802b172c..1a2605752839eca05f2dba186f1ea29ad63aaa26 100755
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -182,7 +182,8 @@ def klass
           when :float         then Float
           when :datetime      then Time
           when :date          then Date
-         when :time          then Time
+          when :timestamp     then Time
+          when :time          then Time
           when :text, :string then String
           when :boolean       then Object
         end
@@ -191,14 +192,15 @@ def klass
       def type_cast(value)
         if value.nil? then return nil end
         case type
-          when :string   then value
-          when :text     then value
-          when :integer  then value.to_i
-          when :float    then value.to_f
-          when :datetime then string_to_time(value)
-         when :time     then string_to_dummy_time(value)
-          when :date     then string_to_date(value)
-          when :boolean  then (value == "t" or value == true ? true : false)
+          when :string    then value
+          when :text      then value
+          when :integer   then value.to_i
+          when :float     then value.to_f
+          when :datetime  then string_to_time(value)
+          when :timestamp then string_to_time(value)
+          when :time      then string_to_dummy_time(value)
+          when :date      then string_to_date(value)
+          when :boolean   then (value == "t" or value == true ? true : false)
           else value
         end
       end
@@ -242,8 +244,10 @@ def simplified_type(field_type)
               :float
             when /datetime/i
               :datetime
-           when /time/i
-             :time
+            when /timestamp/i
+              :timestamp
+            when /time/i
+              :time
             when /date/i
               :date
             when /(c|b)lob/i, /text/i