Sqlite3, AR and Quoting issue

Migration:

class CreateMyModels < ActiveRecord::Migration
  def self.up
    create_table :my_models do |t|
      t.string :first_timestamp
      t.date :second_timestamp
      t.datetime :third_timestamp

      t.timestamps
    end
  end
end

Model:

class MyModel < ActiveRecord::Base
end

Creating:

MyModel.create(:first_timestamp => "2009-05-06 20:38:00", :second_timestamp => "2009-05-06 20:38:00", :third_timestamp => "2009-05-06 20:38:00")

Let's see database:

Enter ".help" for instructions
Enter SQL statements terminated with a ";"
sqlite> .d
BEGIN TRANSACTION;
CREATE TABLE "schema_migrations" ("version" varchar(255) NOT NULL);
INSERT INTO "schema_migrations" VALUES('20090506183730');
CREATE TABLE "my_models" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "first_timestamp" varchar(255), "second_timestamp" date, "third_timestamp" datetime, "created_at" datetime, "updated_at" datetime);
INSERT INTO "my_models" VALUES(1,'2009-05-06 20:38:00','2009-05-06','2009-05-06 20:38:00','2009-05-06 18:38:51','2009-05-06 18:38:51');
DELETE FROM sqlite_sequence;
INSERT INTO "sqlite_sequence" VALUES('my_models',1);
CREATE UNIQUE INDEX "unique_schema_migrations" ON "schema_migrations" ("version");
COMMIT;
sqlite> select * from my_models;
1|2009-05-06 20:38:00|2009-05-06|2009-05-06 20:38:00|2009-05-06 18:38:51|2009-05-06 18:38:51

About your application's environment
Ruby version              1.9.1 (x86_64-linux)
RubyGems version          1.3.3
Rack version              1.0 bundled
Rails version             2.3.2
Active Record version     2.3.2
Action Pack version       2.3.2
Active Resource version   2.3.2
Action Mailer version     2.3.2
Active Support version    2.3.2
Environment               development
Database adapter          sqlite3

Everything works perfectly using sqlite3-ruby (1.2.4).