Add mysql and pg specific attributes to Column#== and hash

1 files changed, 9 insertions, 2 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb
index 01f06af348..dd303c73d5 100644
--- a/activerecord/lib/active_record/connection_adapters/column.rb
+++ b/activerecord/lib/active_record/connection_adapters/column.rb
@@ -62,12 +62,19 @@ module ActiveRecord
           other.default == default &&
           other.cast_type == cast_type &&
           other.sql_type == sql_type &&
-          other.null == null
+          other.null == null &&
+          other.default_function == default_function
       end
       alias :eql? :==
 
       def hash
-        [self.class, name, default, cast_type, sql_type, null].hash
+        attributes_for_hash.hash
+      end
+
+      private
+
+      def attributes_for_hash
+        [self.class, name, default, cast_type, sql_type, null, default_function]
       end
     end
   end