What is role of 'type' => 'static' in Magento 2 data patch?

Question

Recently I saw Setup/Patch/Data with 'type' => 'static'

$eavSetup->addAttribute(
        \Magento\Catalog\Model\Product::ENTITY,
        'attribute_code',
        [
            'group' => 'General',
            'label' => 'Product Type ID',
            'type'  => 'static',
            'input' => 'select',
            'source' => \Vendor\Module\Model\Source\Source::class,
            'required' => false,
            'sort_order' => 1,
            'global' => Attribute::SCOPE_GLOBAL,
            'used_in_product_listing' => false,
            'visible_on_front' => false,
        ]
    );

How does this static type work and when should I use it? Thank's for any information))

Answer 1

In short details :

'type' => 'static' means that attributes is stored in main eav table. For ex : position is stored in catalog_category_entity table.

You can see here that attribute created from vendor/magento/module-catalog/Setup/CategorySetup.php