我创建了一个脚本化的SQL安装程序，当我访问MySQL并在服务器中搜索时，我找不到用脚本创建的新列。我的代码是：

<?php 

$installer = new Mage_Sales_Model_Resource_Setup('core_setup');

//entities for options in table Sales Flat Order Item
$entities = array(
    'order_item'
);

//entity for desactivate_count in table Sales Flat Order
$entitydes = array(
    'order'
);

//for type text
$optionstxt = array(
    'type'     => 'text',
    'grid' => false
);

//for type int
$optionsint = array(
    'type' => 'int',
    'grid' => false,
    'default' => '0'
    );

//just for column incomm_desactivate_count
$optionsdesc = array(
    'type' => 'int',
    'grid' => true,
    'default' => '0'
    );

foreach ($entities as $entity) {
    $installer->addAttribute($entity, 'incomm_request_active_code', $options);
    $installer->addAttribute($entity, 'incomm_cancel', $options);
    $installer->addAttribute($entity, 'incomm_exception_count', $optionsint); //value int(2)
    $installer->addAttribute($entity, 'incomm_return_active_code', $options);
    $installer->addAttribute($entity, 'incomm_activated', $optionsint); //value int(1)
}

foreach ($entitydes as $entity) {
    $installer->addAttribute($entity, 'incomm_desactivate_count', $optionsdesc); //value int(2)
}

$installer->endSetup();

我发现Magento Module SQL does not run一个评论说，编译执行安装程序SQL在我的自定义模块。我需要知道为什么我必须这样做...在这个链接中，我找不到任何更多的信息。