Don't use transactional fixtures for when DDL changes are involved.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3217 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/test/aaa_create_tables_test.rb

@@ -2,6 +2,8 @@
 require 'abstract_unit'
 
 class CreateTablesTest < Test::Unit::TestCase
+  self.use_transactional_fixtures = false
+
   def setup
     @base_path = "#{File.dirname(__FILE__)}/fixtures/db_definitions"
   end

activerecord/test/associations_join_model_test.rb

@@ -5,6 +5,7 @@ require 'fixtures/post'
 require 'fixtures/comment'
 
 class AssociationsJoinModelTest < Test::Unit::TestCase
+  self.use_transactional_fixtures = false
   fixtures :posts, :comments, :tags, :taggings
 
   def test_polymorphic_has_many