diff --git a/activerecord/lib/active_record/querying.rb b/activerecord/lib/active_record/querying.rb
index ef138c6f807e294d28d6e2388a63780c67099e5b..1fe54cea3fbe80f5d0328032aaeb8d0496483027 100644
--- a/activerecord/lib/active_record/querying.rb
+++ b/activerecord/lib/active_record/querying.rb
@@ -40,7 +40,7 @@ def find_by_sql(sql, binds = [])
       column_types = {}
 
       if result_set.respond_to? :column_types
-        column_types = result_set.column_types
+        column_types = result_set.column_types.merge(columns_hash)
       else
         ActiveSupport::Deprecation.warn "the object returned from `select_all` must respond to `column_types`"
       end
diff --git a/activerecord/test/cases/adapters/mysql/consistency_test.rb b/activerecord/test/cases/adapters/mysql/consistency_test.rb
new file mode 100644
index 0000000000000000000000000000000000000000..083d533bb2589392e28a16a82663a66fa6058c75
--- /dev/null
+++ b/activerecord/test/cases/adapters/mysql/consistency_test.rb
@@ -0,0 +1,48 @@
+require "cases/helper"
+
+class MysqlConsistencyTest < ActiveRecord::TestCase
+  self.use_transactional_fixtures = false
+
+  class Consistency < ActiveRecord::Base
+    self.table_name = "mysql_consistency"
+  end
+
+  setup do
+    @old_emulate_booleans = ActiveRecord::ConnectionAdapters::MysqlAdapter.emulate_booleans
+    ActiveRecord::ConnectionAdapters::MysqlAdapter.emulate_booleans = false
+
+    @connection = ActiveRecord::Base.connection
+    @connection.create_table("mysql_consistency") do |t|
+      t.boolean "a_bool"
+      t.string "a_string"
+    end
+    Consistency.reset_column_information
+    Consistency.create!
+  end
+
+  teardown do
+    ActiveRecord::ConnectionAdapters::MysqlAdapter.emulate_booleans = @old_emulate_booleans
+    @connection.drop_table "mysql_consistency"
+  end
+
+  test "boolean columns with random value type cast to 0 when emulate_booleans is false" do
+    with_new = Consistency.new
+    with_last = Consistency.last
+    with_new.a_bool = 'wibble'
+    with_last.a_bool = 'wibble'
+
+    assert_equal 0, with_new.a_bool
+    assert_equal 0, with_last.a_bool
+  end
+
+  test "string columns call #to_s" do
+    with_new = Consistency.new
+    with_last = Consistency.last
+    thing = Object.new
+    with_new.a_string = thing
+    with_last.a_string = thing
+
+    assert_equal thing.to_s, with_new.a_string
+    assert_equal thing.to_s, with_last.a_string
+  end
+end
diff --git a/activerecord/test/cases/custom_properties_test.rb b/activerecord/test/cases/custom_properties_test.rb
index 397a8e0692812d7b439886722a92d7b6a9fd5363..047c1b9b7444cc8dac3770ae8ea67a594f7477c2 100644
--- a/activerecord/test/cases/custom_properties_test.rb
+++ b/activerecord/test/cases/custom_properties_test.rb
@@ -37,7 +37,9 @@ def test_overloaded_properties_save
       data.reload
 
       assert_equal 2, data.overloaded_float
+      assert_kind_of Fixnum, OverloadedType.last.overloaded_float
       assert_equal 2.0, UnoverloadedType.last.overloaded_float
+      assert_kind_of Float, UnoverloadedType.last.overloaded_float
     end
 
     def test_properties_assigned_in_constructor