1 files changed, 20 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/type.rb b/activerecord/lib/active_record/connection_adapters/type.rb
index 1b27377cde..34b1e9e39e 100644
--- a/activerecord/lib/active_record/connection_adapters/type.rb
+++ b/activerecord/lib/active_record/connection_adapters/type.rb
@@ -1,8 +1,28 @@
 require 'active_record/connection_adapters/type/value'
+require 'active_record/connection_adapters/type/binary'
+require 'active_record/connection_adapters/type/boolean'
+require 'active_record/connection_adapters/type/date'
+require 'active_record/connection_adapters/type/date_time'
+require 'active_record/connection_adapters/type/decimal'
+require 'active_record/connection_adapters/type/float'
+require 'active_record/connection_adapters/type/integer'
+require 'active_record/connection_adapters/type/string'
+require 'active_record/connection_adapters/type/text'
+require 'active_record/connection_adapters/type/time'
+require 'active_record/connection_adapters/type/timestamp'
+require 'active_record/connection_adapters/type/type_map'
 
 module ActiveRecord
   module ConnectionAdapters
     module Type # :nodoc:
+      class << self
+        def extract_scale(sql_type)
+          case sql_type
+            when /^(numeric|decimal|number)\((\d+)\)/i then 0
+            when /^(numeric|decimal|number)\((\d+)(,(\d+))\)/i then $4.to_i
+          end
+        end
+      end
     end
   end
 end