public function testValueByIntrospect() {
		$result = $this->db->value("string");
		$this->assertIdentical("'string'", $result);

		$result = $this->db->value(true);
		$this->assertIdentical(1, $result);

		$result = $this->db->value('1');
		$this->assertIdentical(1, $result);

		$result = $this->db->value('1.1');
		$this->assertIdentical(1.1, $result);
	}